Oriland Balloon Ride

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Oriland Balloon Ride - page 1

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Contents

Introduction and Copyright Notice....... 2 Photo Gallery....................................... 3 Origami Symbols................................. 5 Origami Balloon Intro........................... 6 Hot Air Balloon (Outside Top Lock)..........14 Square Basket.....................................42 1-Piece Balloon (Outside Top Lock)....52 1-Piece Tubby Balloon (Outside Top Lock).. 70

Hot Air Balloon (Inside Top Lock)........ 71 1-Piece Balloon (Inside Top Lock).... 96 1-Piece Tubby Balloon (Inside Top Lock)..... 108 Montgolfier Balloon (8-Module Envelope).. 110 Round Basket.................................... 139 Printable Colour Pattern for Montgolfier.. 153 Montgolfier Balloon (4-Module Envelope).... 156 Montgolfier Balloon (1-Piece Envelope).... 159

Introduction

ORILAND BALLOON RIDE is a book from Origami Sky Series by Oriland authors that will teach you how to create fabulous origami hot air balloons of various shapes from the classic "inverted tear drop" balloons to the sophisticated round balloons à la Montgolfier! Begin your origami balloon adventure! Do-It-Yourself – fold these fantastic Oriland designs, originally created by Yuri and Katrin Shumakov – Hot Air Balloon (Outside Top Lock), Square Basket, 1-Piece Hot Air Balloon (Outside Top Lock), 1-Piece Tubby Balloon (Outside Top Lock), Hot Air Balloon (Inside Top Lock), 1-Piece Hot Air Balloon (Inside Top Lock), 1-Piece Tubby Balloon (Inside Top Lock), Montgolfier Balloon (8-Module Envelope), Round Basket, Montgolfier Balloon (4-Module Envelope), Montgolfier Balloon (1-Piece Envelope). The components of balloons are folded and connected together without any glue, just using paper locks. Among these designs, there are balloon envelopes on all tastes - multi-piece and one-piece. As a bonus this book offers an original printable colour pattern, especially designed for the Montgolfier Balloon (8-Module Envelope) to get a marvelous balloon colouring that resembles the Montgolfier brothers’ historic balloon! As a preamble to the theme this book offers authors’ article ‘Origami Balloon Intro’, which sheds light on Oriland balloon designs and its different variations and gives practical advises. There are 760 detailed step-by-step colorful diagrams with extensive comments, placed on 164 pages that will guide you through folding the 11 original origami designs of the Oriland style. The ‘Photo Gallery’ section shows you pictures of all the designs presented in the book. The 'Origami Symbols' section is explaining international origami symbols to help you to read diagrams for folding. In each article, there are recommendations on paper size and indication to the model size resulting from the size of starting paper. The models are intermediate and complex level of folding as shown by stars in the book and are a good challenge for the novice folder and the expert alike. Happy folding!

Copyright Notice

Oriland Balloon Ride. Origami Sky Series. Copyright©2012 by Yuri and Katrin Shumakov. All rights reserved. No part of this book may be used or reproduced in any manner whatsoever without written permission except in the case of brief quotations embodied in critical articles and reviews. For information, address [email protected] This book is available exclusively in electronic format as a portable document format (PDF) file. The product can be purchased exclusively through www.oriland.com Any other ways of obtaining this book are considered illegal.

Please remember that by buying items in Oriland Store you’re directly supporting future Oriland’s projects, as well as Oriland’s development itself. Thank you!

Publisher: Oriland.com Product Format: e-Book Pages: 164 Date published: 2012/09/27 ISBN: 978-1-926834-27-6 Contents: 11 origami-designs Price: US$12.50

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Photos, texts, diagrams, NOTE: The diagrams from this book cover design: may be printed out only for personal Katrin and Yuri Shumakov use, and may not be redistributed or republished in any way without the express written consent of the creator. For information, address [email protected]

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Photo Gallery Origami Balloon Intro

p. 6

Origami Balloon Structure

Hot Air Balloon (Outside Top Lock)

p. 14

Square Basket

p. 42

Top Lock

Balloon Envelope

Envelope Skirt (Bottom Lock) Basket

1-Piece Hot Air Balloon (Outside Top Lock)

p. 52

1-Piece Tubby Balloon (Outside Top Lock)

p. 70

Hot Air Balloon (Inside Top Lock)

p. 71

p. 96 www.oriland.com

1-Piece Hot Air Balloon (Inside Top Lock) Oriland Balloon Ride - page 3

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1-Piece Tubby Balloon (Inside Top Lock)

p. 108

p. 110

Montgolfier Balloon (8-Module Envelope)

p. 153 Printable Colour Pattern for Montgolfier Balloon (8-Module Envelope)

Round Basket

p. 139

Montgolfier Balloon (1-Piece Envelope)

p. 159

p. 156 Montgolfier Balloon (4-Module Envelope)

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Origami Symbols These simple origami symbols will help you to read diagrams of folding.

Valley fold

Step fold

Turn the paper over

Mountain fold

Pull out

Turn the paper around

Valley fold and unfold

Inside reverse fold

Enlarging the following diagram

Mountain fold and unfold

Outside reverse fold

Reduction the following diagram

Push in. Sink Open and squash

Fold the paper over and over

X-ray view

Level of folding Simple Simple-Medium Medium Medium-Complex Complex

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The system of levels of folding is more as a guide line, an approximate approach just to orient you and mostly depends of your skills in paper folding. If you are a novice, even the simple level can be challenging for you. And if you are already a connoisseur even a complex model can be simple for you.

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Origami Balloons Intro Let us introduce origami balloon designs presented in this book. First, it will be important to say that all of them are based on an original balloon design created in far 1998 by Yuri Shumakov, one of Oriland creators. The very first Oriland Hot Air Balloon was displayed at the same year of 1998 on Oriland creators’ exhibition “Miracles from Paper”, “flying” over Oriville Castle of the very first Oriland Kingdom. Also this balloon made its appearance in first virtual Oriland galleries on the Internet, including the award-winning site “Travel to Oriland” (1999) where an image of this origami balloon was flying across the screen, surprising all the visitors with miracles of Internet technology of that time as well as miracles of origami! Origami Balloon Structure All the origami balloon designs in this Top Lock book have a similar structure: each consists of a Balloon Envelope and a Basket. The bottom part of the envelope is referred to as the skirt. The balloon envelope has a Top Lock and a Bottom Lock at the Envelope Skirt. The components of balloons are folded and connected together without any glue, just using paper locks.

Balloon Baskets There are two types of baskets presented with these origami balloons - Square Basket, used for all the Hot Air Balloon versions and Round Basket, used for all the Montgolfier Balloons.

Balloon Envelope

Envelope Skirt (Bottom Lock) Square Basket

Round Basket

Balloon Envelopes

The balloon envelopes presented in this book can be grouped by shapes, types of locks, quantity of pieces of paper and quantity of sections.

Elongate Conical Shape (16-section Hot Air Balloon)

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Basket

Shapes of Balloon Envelopes

The shapes of balloon envelopes rendered in these origami designs can be divided on the traditional "inverted tear drop" shape (from the elongate conical to tubby conical versions) and the round shape.

Tubby Conical Shape (21-section Hot Air Balloon)

Round Shape (24-section Montgolfier Balloon)

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Top and Bottom Locks of Balloon Envelopes There are different types of locks used in the presented designs of balloon envelopes, but they can be divided on two main groups: Top Locks and Skirt Lock (Bottom Lock).

Skirt Lock (Bottom Lock)

Skirt Lock (Bottom Lock) on 15-section Hot Air Balloon

The Bottom Lock also called here Skirt Lock is universal for all the balloons presented in this book. So once you comprehended its folding in one model, it should be easy to perform this lock for other models.

Skirt Lock (Bottom Lock) on 24-section Montgolfier Balloon

Outside Top Lock

18-section Hot Air Balloon (Outside Top Lock)

As for the top locks they differ in complexity and the final visual result. Relatively simple in folding is the Outside Top Lock shown in the article “Hot Air Balloon (Outside Top Lock)” in great detail. The lock creates a pretty circle on the top of the balloon envelope, which is looking especially nice when two-colour paper is used for this balloon. We do recommend starting your balloon folding adventure from this design.

Inside Top Lock The Inside Top Lock minutely shown in the article “Hot Air Balloon (Inside Top Lock)” is more complex in folding since the process of locking is taking place inside the balloon. This is a rather robust lock that is completely hidden on the finished design and provides a small aperture and an appealing visual pattern of balloon sections on the top. It’s advisable to take strong paper because this inside top lock adds an extra stress to the upper edge of paper used for the balloon envelope; in case of weak or dried-up paper the edge may tear a bit during the locking. You may reinforce the edge of paper as advised in a practical tip given in the afore-mentioned article.

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18-section Hot Air Balloon (Inside Top Lock)

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Skirt-like Inside Top Lock This type of the Inside Top Lock is based on the same principle as the Skirt Lock (Bottom Lock). It is used for the Montgolfier balloon designs and shown in great detail in the article “Montgolfier Balloon (8-Module Envelope)”. To the moment when you learned various designs from this book, it will be no problem to comprehend this lock, but the fact that the lock is on the inside of the balloon adds complexity. This Skirt-like Inside Top Lock can be used for designs of Hot Air Balloons presented in this book also, but be aware that the less sections in the balloon the more complex the locking process will be. Although we don’t show this specific type of Skirtlike Inside Top Lock for Hot Air Balloons in the book, you may try if you want, but it’s advisable that you master the Montgolfier Balloon first.

Skirt-like Inside Top Lock Skirt-like Inside Top Lock on 24-section Montgolfier Balloon on 15-section Hot Air Balloon (8-module Envelope) Multi-Piece and One-Piece Balloon Envelopes Considering the quantity of pieces of paper used, there are two main types of balloon envelopes - multi-piece and one-piece. We’ll show the examples here grouping them in connection with the quantity of sections of balloon envelopes.

Multi-Piece Balloon Envelopes The Montgolfier Balloon designs with the multi-piece envelope in this book, no matter how many modules in them, have the fixed quantity of sections – 24 to maintain its round shape. There is a version with 8-module envelope, where each module folded from a rectangle, 1:2 in proportion. And the other Montgolfier Balloon version with the multi-piece envelope presented in the book has 4 modules, each module folded from a square. The designs of Hot Air Balloon with the multi-piece balloon envelope presented in the book have another story. These can be folded from several balloon modules with the different number of sections. The quantity of balloon modules (each folded from a rectangle, 1:2 in proportion) may vary from 5 to 8 to receive a desired balloon shape from an elegant 15-section balloon to a tubby 24-section balloon. The balloon modules may overlap by 1 or 2 sections. In the book, the balloon assembly is shown on an example of an 18section balloon, folded from 6 balloon modules that overlap by 1 section, but you can extrapolate the principle on any variation presented here. Despite types of top locks - outside or inside, designs of Hot Air Balloons are using practically the same balloon 24-section Montgolfier Balloon module with just some minor difference in the final folding steps, (4-module Envelope) so the following variations apply to both types of designs.

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15-section 5-piece Balloon Envelope (5 modules (1:2), 1-section overlap)

15-section Hot Air Balloon (Inside Top Lock) The 15-section balloon is having the slim and elegant classic shape. It works well for all types of the top lock – outside top lock and inside top lock.

Overlap by 1 section

16-section 8-piece Balloon Envelope (8 modules (1:2), 2-section overlap)

16-section Hot Air Balloon (Inside Top Lock)

Overlap by 2 sections To incorporate more colours you may overlap modules by 2 sections. For instance, using 8 modules will result in the 16-section balloon envelope. Although it works well for both types of the top lock, it’s better to use with the inside top lock.

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16-section 4-piece Balloon Envelope (4 modules (1:2+1sec), 1-section overlap)

LETTER or A4

1 extra section

16-section Hot Air Balloon (Inside Top Lock) This variation works well for all types of the top lock – outside top lock and inside top lock. Overlap by 1 section When you need a balloon envelope made of 4 modules, you may use for them rectangles that have 1 extra section, which will be used for overlapping. So you’ll need 4 rectangles, 5:8 in proportion each. For instance, you may efficiently use any standard format of paper, Letter or A4, to yield a rectangle 5:8, as shown. To do that, first, mark a maximum rectangle 1:2 on Letter or A4 and fold it in 4 equal vertical sections. After that, project one extra section and then cut the resulted rectangle.

20-section 4-piece Balloon Envelope (4 modules (1:2+2sec), 1-section overlap)

sec

LETTER

xtra 2 e tion s

20-section Hot Air Balloon (Inside Top Lock)

Overlap by 1 section

Also for a 4-module balloon envelope, you may use for each module a rectangle that has 2 extra sections, one of which will be used for overlapping. It will result in a 20-section balloon. You’ll need 4 rectangles, 6:8 in proportion each. For instance, you may efficiently use a standard paper of Letter format to yield a rectangle 6:8, as shown. To do that, first, mark a maximum rectangle 1:2 on Letter and fold it in 4 equal vertical sections. After that, project two extra sections and then cut the resulted rectangle. This variation works well for both types of the top lock – outside and inside.

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18-section 6-piece Balloon Envelope (6 modules (1:2), 1-section overlap)

18-section Hot Air Balloon (Inside Top Lock)

Overlap by 1 section In the both articles - “Hot Air Balloon (Outside Top Lock)” and “Hot Air Balloon (Inside Top Lock)” - the balloon assembly is shown on an example of an 18-section balloon, folded from 6 balloon modules that overlap by 1 section. This is a very good balanced shape for the balloon, not slim already, but not tubby yet.

21-section 7-piece Balloon Envelope (7 modules (1:2), 1-section overlap)

21-section Hot Air Balloon (Inside Top Lock)

Overlap by 1 section Of course, you may incorporate more modules to get a tubby shape of the balloon. For instance, the 21-section balloon is looking quite cute. It works well for all types of the top lock, but it’s better to use with the inside top lock, as the top aperture will remain small with this type of the top lock.

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21-section 3-piece Balloon Envelope (3 modules (1:1), 1-section overlap)

21-section Hot Air Balloon (Inside Top Lock) The tubby balloons work well for all types of the top lock, but with the inside top lock you will get the top aperture relatively small in size, and with the outside top lock - wider one.

Overlap by 1 section You may receive a cute tubby balloon with 21 sections, if using 3 squares for balloon modules that overlap by 1 section. Fold them in the same way as regular balloon modules, only using squares.

24-section 4-piece Balloon Envelope (4 modules (1:1), 2-section overlap)

The 24- section balloon can be received with 4 balloon modules folded from squares that overlap by 2 sections, as shown. Fold them in the same way as regular balloon modules, only using squares. 24-section Hot Air Balloon (Inside Top Lock)

Overlap by 2 sections You also may use 8 standard modules (1:2) with 1 section overlapping to get the 24-section balloon.

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One-Piece Balloon Envelopes Each version of balloon envelopes presented in this book can be folded from a single piece of paper. The one-piece envelope of the Montgolfier Balloon folds from a rectangle, 1:3 in proportion, which results in 23-section balloon.

23-section Montgolfier Balloon The designs of Hot Air Balloon with the one-piece balloon envelope presented in the book can be folded from a rectangle, 1:2 in proportion, to get a 15-section balloon, as well as from a rectangle, 1:3 in proportion, resulting in a 23-section balloon of a tubby shape. Of course, you may use a rectangle between these proportions; say, adding a required number of sections to a rectangle, 1:2 in proportion, to get a one-piece balloon of a desired shape.

15-section Hot Air Balloon (outside Top Lock)

15-section Hot Air Balloon (Inside Top Lock)

23-section Hot Air Balloon (Inside Top Lock)

Recommended Paper

Large-size origami paper and colour copy paper can be used for most of the multi-piece designs. For 1-piece envelope balloons you may use gift wrapping paper (not too thin), even holographic foil paper that comes in rolls. Many fine Japanese papers can be used as well such as Chiyogami paper. Actually you may experiment with any paper that is sturdy, thin, with fine finish. You even can use craft paper or thicker art paper for a large scale model. You may use posters or maps to get quite a unique appearance of balloons. Also try our printable colour pattern for the Montgolfier Balloon (8-module Envelope), presented in this book. Enjoy this book with all the presented designs and have fun folding the whole fleet of origami balloons! Happy folding! 24-section Montgolfier Balloon The Authors, Katrin and Yuri Shumakov (colour pattern printed on paper)

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Hot Air Balloon (Outside Top Lock) by Yuri and Katrin Shumakov

This modular version of Hot Air Balloon consists of a modular balloon envelope with the outside top lock and a 1-piece square basket. The balloon envelope folds from several balloon modules, each folded from a rectangle, 1:2 in proportion. The square basket folds from a square with a side that is 3/4 of the short side of the rectangle used for the balloon module. The quantity of balloon modules may vary from 5 to 8 to receive a desired balloon shape from an elegant 15-section balloon to a tubby 24-section balloon. The balloon modules may overlap by 1 or 2 sections. We will show here the 18-section balloon, as pictured, folded from 6 balloon modules that overlap by 1 section. finished model will be Balloon Modules The measuring a bit more than 3/4 of the tall side of the initial rectangle used for the balloon module, as pictured.

Suggested paper: regular origami paper, colour copy paper. Also you may experiment with any paper that is sturdy, thin, with fine finish. You even can use craft paper or thicker art paper for a large scale model.

Basket

Suggested sizes: In case of origami paper, use a 10-inch (25 cm) size to get the rectangles 10 x 5 inches (25 x 12.5 cm) in size; respectively use a 3 3/4 -inch (9.4 cm) square for a basket. In this case the finished model will be about 7 1/2 inches (18.5 cm) high. In case of standard copy paper either Letter or A4 format, use its height to maximum. Letter format: use 11 x 5 1/2 inches rectangles for balloon modules and a 4 1/8-inch square for a basket to receive the finished model about 8 3/4 inches high. A4: use 30 x 15 cm rectangles for balloon modules and an 11.3-cm square for a basket to receive the finished model about 23 cm high. To hang such origami Hot Air Balloon you will need a piece of line and a little rectangular piece of paper about 1:2 or 1:3 in proportion, which in length is a bit less than the balloon diameter.

Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 1

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Balloon Module (from 1:2 rectangle) If using two-color paper, begin with colored side up in portrait position. Valley fold the 2 rectangle in half Valley fold the left from bottom to and right-hand top, press the fold edges to meet the Now valley fold the flat and open it up. middle fold-line, rectangle in half press the folds flat from side to side, 1 and unfold them. press the fold flat Then turn the and unfold it up. paper over. 3

Now fold the one vertical section of the right-hand edge along the existing fold-line.

Divide each vertical section in half by valley folding, thereby making 8 equal vertical sections. 4

5

This should be the result.

6

This should be the result. Now fold 3 vertical sections of the right-hand edge along the existing fold-line and repeat step 6.

Working with the upper and lower right corners, make the diagonal foldlines over two layers of this vertical section by valley folding, as shown. Then, unfold the front flap.

7

8 Repeat steps 5-7 as in mirror for the left-hand side.

Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 2

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Next 4 steps from 9 to 12 are showing an efficient way to fold the top and bottom edges shown in step 13. But if you’d like, you may jump to step 13 from here.

10

9

This should be the result. Then turn the paper over.

Fold the leftand righthand sections as shown.

Along the fold-lines made in step 11, valley fold the top and bottom edges, as shown.

Working with the top, separate the front layer and valley fold it as shown, as far as it will go. Then repeat for the bottom part. 11

12

13

Valley fold the rectangle in half from top to bottom.

Unfold the top and bottom flaps and the side sections, therefore unfolding the paper completely.

14

15 Separate the front flap and valley fold it up to meet the top edge. Unfold the front flap up, as shown.

16 This should be the result. Now valley fold the bottom edge up to meet the central horizontal line (which is the lower edge of the front flap), so the dots coincide, press the fold flat and unfold it.

17

18 Now working with 2 upper horizontal sections, divide each of them in half by ‘valley’ folding, so the dots coincide.

Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 3

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19

This should be the result. Unfold the lower horizontal flap.

Working with the selected 3 horizontal sections at the upper part, make diagonal “mountain” folds as shown. It’s convenient to work “in the air”, successively pinching a needed diagonal in each rectangle. 20

21 22 Now re-fold the most upper parts of the selected vertical fold-lines into the ‘mountains’. Then turn the paper over.

This should be the result. Now re-fold the upper parts of the selected vertical foldlines into the ‘valleys’.

23 Working with the selected horizontal section at the lower part, make diagonal “mountain” folds as shown. It’s convenient to work “in the air”, successively pinching a needed diagonal in each rectangle. Then turn the paper over. Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 4

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This should be the result. Check out all the ‘mountain’ and ‘valley” lines and then carefully pleat the paper according these lines. 24

25

Here is the profile of the resulted pleated paper.

The form now is rather 3D, so the following folding process is shown in a photo-diagram style.

This should be the result. 26 Check out all the folds. 27

The other side.

28 The balloon module is ready!

Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 5

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Assembly of 18-section Balloon Envelope (from 6 Balloon Modules) We will show the assembly of the 18-section balloon, as pictured, folded from 6 balloon modules that overlap by 1 section. For this particular balloon we used regular origami paper - the rectangles 10 x 5 inches (25 x 12.5 cm) in size for balloon modules.

The colours scheme used is a classic rainbow. 6 spectral colours work great for this design, namely: red, orange, yellow, green, blue, and violet. So you will need one balloon module per colour. It’s also possible to use just 2 complementary colours like red and green, blue and orange, yellow and violet. In this case your will need 3 balloon modules of each colour. So prepare the balloon modules and diligently follow the assembly instructions that shown in a great detail with step-by-step photodiagrams and written comments.

Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 6

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1

2

3

4 5 6

1

2

2

1

Get ready all the balloon modules in an Take the first two modules and place the one appropriate order, in our case it’s 6 modules. double section of the 2nd module atop the 1st one, aligning paper along the folds and hence overlapping the 1st module.

4

3

Note that the flap of the 2nd module should This should be the result. The 1st and 2nd envelop the flap of 1st module, as pictured. modules are connected. Turn the paper over.

6

5

Back view. Be sure that the overlapping sections So now when all the folds are aligned, compress of the connected modules are well aligned. Return the connected modules gently together and then the paper in the previous position. release them. Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 7

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1

1

2

2

3

8

7

Here are the connected 1st and 2nd modules. Now add the 3rd module, placing it atop of the 2nd module, aligning paper along the folds of one double section and hence overlapping the 2nd module.

10

9

The flap of the 3rd module should envelop the Be sure that the overlapping sections of the connected modules are well aligned. flap of 2nd module, as pictured.

1

2

11

3

1 2 3

4

12

Here are the connected 1st, 2nd and 3rd modules. Now add the 4th module in the same way as explained before.

Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 8

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1 2 3 4

13

14

Here are the connected 1st, 2nd, 3rd and 4th Compress the connected modules gently together modules. and then release them.

1 2 3 4

5

1 2 3 4 5

16

15

Now add the 5th module in the same way as Here are the connected 1st, 2nd, 3rd, 4th and 5th modules. Don’t forget to gently compress the explained before. connected modules together when you added the next module.

1 2 3 4 5

6

18

17

And finally add the 6th module in the same way This should be the result. Check all the connection as explained before. so that the flaps envelop each next one correctly.

Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 9

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1 2 3 4 5 6

20

19

Here are all the connected modules - 1st, 2nd, Gently compress the connected modules together 3rd, 4th, 5th and 6th. and then release them.

21

22

This should be the result. Turn the paper around. Compress the lower part of the paper as shown in next step. Be sure to keep all the overlapped folds in their places as you compress the paper.

23

24

This should be the result. Keeping the lower part Now, it looks as if you are holding a fan. Turn the squeezed, turn the paper over into the position paper around, so the squeezed part is on the shown in the next step. top. Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 10

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26

25

This should be the result. Now we are ready to The marked place is shown enlarged in the work with the squeezed part in order to do a following steps. balloon’s bottom lock.

27

28

Keeping the most part of the paper squeezed In the process... fold the edge down along the atop, stretch the right-hand side a bit, as shown. existing fold-lines, squeezing the sides of this Now working with the second double section, section. fold its edge down along the existing fold-lines, as pictured.

29

30

This should be the result. Now compress the 2 This should be the result. Now along the existing double sections as shown. fold-lines, valley fold the upper edge of the section, bringing it into the position, shown in the next step. Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 11

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32

31

In the process... Fold down this triangular flap, This should be the result. Now compress the thereby locking two sections together. folds to secure the lock.

34

33

This should be the result. Now open the folds in Working with this double section, fold its edge the next double section as pictured in the next down along the existing fold-lines, as pictured, repeating step 30 for this double section, thereby step. locking two neighbouring sections together.

35

36

In the process... Note that this section contains In the process... Make sure that the layers are two layers as it is situated on the overlapped part adjusted each other and continue to fold down of the two modules. this triangular flap, thereby making a lock. Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 12

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37

38

This should be the result. Now fold the left-hand This should be the result. Again along the existing fold-lines, valley fold the upper edge of the section flap, thereby closing this section. down, thereby locking two neighbouring sections together.

39

40

This should be the result. Now fold the left-hand Valley fold the upper edge of the section down, flap to the right to work with the next section. thereby locking two neighbouring sections together.

41

42

This should be the result. Fold the left-hand flap Note that this section contains two layers as it is to the right to work with the next section. an overlapped part of the two modules. Be sure the layers are well aligned. Then along the existing fold-lines valley fold the upper edge of the section down, thereby locking it. Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 13

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43

44

This should be the result. When a few sections Compress the flaps to secure the folds. After that, are locked, it’s good to compress the all the open out the next section to work with. layers together to secure the folds. So bring all the flaps together.

46

45

This should be the result. Again along the existing This should be the result. Fold the left-hand flap fold-lines, valley fold the upper edge of the section to the right to work with the next section. down, thereby locking two neighbouring sections together.

48

47

Valley fold the upper edge of the section down, This should be the result. Don’t forget to compress thereby locking two neighbouring sections the flaps to secure the folds from time to time. together. Then, open out the next section to work with. Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 14

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49

50

Note that, this section contains two layers as it This should be the result. Fold the left-hand flap is an overlapped part of the two modules. Be to the right to work with the next section. sure the layers are well aligned and then along the existing fold-lines, valley fold the upper edge of the section down, thereby locking it.

52

51

Along the existing fold-lines, valley fold the upper Fold the left-hand flap to the right to work with edge of the section down, thereby locking two the next section. neighbouring sections together.

53

54

This should be the result. Along the existing fold- Compress the flaps to secure the folds. Then, lines, valley fold the upper edge of the section open out the next section to work with. down, thereby locking two neighbouring sections together. And then, bring all the flaps together. Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 15

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56

55

This should be the result. Valley fold the upper Fold the left-hand flap to the right to bring all the edge of the section down, thereby locking two flaps together. neighbouring sections together.

58

57

Compress the flaps to secure the folds. Then, Along the existing fold-lines, valley fold the upper open out the next section to work with. edge of the section down, thereby locking two neighbouring sections together.

59

60

This should be the result. Fold the left-hand flap Just a couple of flaps left! Valley fold the upper to the right to work with the next section. edge of the section down along the existing foldlines, thereby locking two neighbouring sections together. Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 16

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61

62

This should be the result. Fold the left-hand flap Along the existing fold-lines, valley fold the upper to the right to work with the next section. edge of the section down, thereby locking two neighbouring sections together.

63

64

Fold the left-hand flap to the right to work with Valley fold the upper edge of the section down along the existing fold-lines, thereby locking two the next section. neighbouring sections together.

65

66

This should be the result. And fold the left-hand And now making the last lock, valley fold the flap to the right to work with the next section. upper edge of the section down along the existing fold-lines, thereby locking two neighbouring sections together. Note, the last section will remain unlocked. Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 17

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67

68

All the necessary locks are ready. Compress the This should be the result. Note, the side sections have to remain unlocked. Stretch out the lower flaps to secure the folds. part a little – it does remind of a sundress, isn’t it?

69

70

This should be the result. Now turn the model This should be the result. Check out that all the modules on the top are aligned well. over. Turn the model around, so that the locked part located in the top.

71

72

Move sides closer together, as we are going to Starting from the top, superimpose the right-hand connect the side sections. section onto the left-hand section, so that the folds of layers coincide with each other. Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 18

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74

73

In the process… Apply the top part of the right- In the process… Be sure all the folds coincide. hand section onto the left-hand section…

76

75

As soon as the top part is aligned, continue to This should be the result. Now turn the model superimpose the right-hand section onto the left- around. hand section further. Be sure that the left-hand section is not folded inside and that the fold of both sections are coinciding.

77

78

This should be the result. To continue Insert the upper layer under the flap atop as far superimposing the sections, you have to insert as it will go and be sure that all the folds of the the upper layer under the flap atop, as shown. overlapped sections coincide. Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 19

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79

80

This should be the result. Gently, according to the existing fold-lines, bring the top of the overlapping sections to join the other folds at the balloon’s upper centre.

In the process… When all folds of the overlapped sections are perfectly aligned, the paper will be almost automatically finding its way in the correct position.

82

81

In the process… Gently bring the top of the This should be the result. This is how the balloon’s overlapping sections to join the other folds at the upper centre should look like at this point. Turn the model around to finish the bottom lock of the balloon’s upper centre. balloon.

84

83

This should be the result. The marked place is Before working with the last lock, make sure that shown enlarged in the following steps. the layers of the overlapped sections are aligned and correct it if necessary. Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 20

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86

85

When the layers of the overlapped sections are This should be the result. Fold the left-hand flap aligned, let’s make the last lock. Valley fold the to the right, closing this section. upper double-layered edge down along the existing fold-lines.

88

87

Now separate the flaps of this section as shown. Sink the corner in between the flaps, thereby making the final lock of the bottom part of the balloon.

89

90

This should be the result. Now the bottom part To secure the folds of the lock, consistently of the balloon is completely locked. compress a few flaps together all around the lock. Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 21

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91

92

This should be the result. The bottom part of the The side view of the balloon. Now turn the model around to work with the upper lock of the balloon. balloon is well locked.

1

1 94

93

This should be the result. The marked place is Working the overlapped section marked as 1, shown enlarged in the following steps. We will pinch the edge of the section and along the start with the overlapped section (marked as 1) existing fold-line valley fold the corner, as shown. that we connected the last in the bottom lock.

1

95

96

Press the fold flat; it’s locking this side of the This should be the result. Continuing working section. with this 1st section, valley fold the other corner to meet the middle-line of this section, thereby locking this section completely. Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 22

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1

1

98

97

This should be the result. Now compress the In the process… Pinch the edges of the section folded edges of this section to secure the folds. well and then release them.

1 1

2

2

99

100

The 1st section is locked. We will do locks on every other section, ie on alternative sections. So skip the next section that is adjoined with the 1st one and concentrate on the other following section that is marked as 2.

Working with the section, marked as 2, valley fold the corners along the existing fold-lines, as shown, and compress the folds well, thereby locking this section.

1

2 3

2 3

101

102

This should be the result. The section marked Working with the section, marked as 3, valley as 2 is locked. Now skip the next section to work fold the corners along the existing fold-lines, as with the other section that is marked as 3. shown, and compress the folds well, thereby locking this section. Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 23

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1

2

3

1

4

3 4

103

104

This should be the result. The 3rd lock is Working on the 4th lock, valley fold the corners completed. Now skip the next section to work along the existing fold-lines, as shown, and with the other section that is marked as 4. compress the folds well, thereby locking this section.

2 1

4

1

4

5

5

105

3

2

3

106

This should be the result. The 4th lock is Working on the 5th lock, valley fold the corners completed. Now skip the next section to work along the existing fold-lines, as shown, and with the other section that is marked as 5. compress the folds well, thereby locking this section.

2

3

2

4

1

5 107

6

3

4 5 6

108

This should be the result. The 5th lock is Working on the 6th lock, valley fold the corners completed. Now skip the next section to work along the existing fold-lines, as shown, and with the other section that is marked as 6. compress the folds well, thereby locking this section. Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 24

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3

2

5

1

7

110

This should be the result. The 6th lock is completed. Just three locks left to work with! Skip the next section to work with the other section that is marked as 7.

Working on the 7th lock, valley fold the corners along the existing fold-lines, as shown, and compress the folds well, thereby locking this section.

4

5

3

7 8

1

5

6 7

3

6

2 111

6

1

7

4

5

2

6 109

4

3

4

8

2 1

112

This should be the result. The 7th lock is Working on the 8th lock, valley fold the corners completed. Skip the next section to work with the along the existing fold-lines, as shown, and compress the folds well, thereby locking this other section that is marked as 8. section.

5

6

5 7

4 113

2

1

9

7 8

4 8

3

6

3 114

9 2

1

This should be the result. The 8th lock is Working on the 9th lock, valley fold the upper completed. Skip the next section to work with the corner along the existing fold-line, as shown. other section that is marked as 9. Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 25

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5

6

7

3 2

9 1

6 7

4

8

4 115

5

8

3 116

2

1

9

Continue with the 9th lock, valley fold the This should be the result. All 9 locks are ready! remained corner along the existing fold-line. Since it’s the last lock, there is a certain tension, so try to keep the layers aligned. Compress the folds well, thereby locking this last section.

117 The top view. If needed secure the folds of the locks one more time.

The side view. The 18-section balloon envelope is ready!!!

118 Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 26

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Paper Stopper Take a piece of line (about 2 times longer that the height of the original rectangle used for the balloon module) and a little rectangular piece of paper about 1:2 or 1:3 in proportion, which in length is a bit less than the balloon diameter. 2

Fold in half again…

1

Fold the rectangle in half lengthways.

3 The paper stopper is ready. Tie the ends of the line in a knot to make a loop. 5 4 Place the paper stopper atop the knot part of the loop as shown and bringing the other end of the loop atop the folded paper, thread it into the little loop with the knot end.

This should be the result. Tighten the lock. If you need you may do another knot to secure it even more. The loop with the paper stopper is ready.

Attaching Line Loop with Paper Stopper

1

2

Get your balloon ready, turned to you by the top Take the paper stopper as well. opening.

Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 27

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4

3

Insert the paper stopper into the top opening of Push the end of the paper stopper deeper into the balloon, but keep the line loop outside. the balloon.

6

5

Pull out the line loop as far as it will go… … until you see the paper stopper is stopped.

7

8

This should be the result. The line loop is attached Now you can hang the balloon. to the balloon.

Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 28

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Square Basket by Yuri Shumakov

The square basket folds from a square with a side that is 3/4 of the short side of the rectangle used for the balloon module.

Balloon Module

If using two-color paper, begin with colored side up. 1

Valley fold the opposite corners together, in turn, to make the diagonal fold lines, and open them up. Then, turn the paper over. Valley fold the opposite sides together in both directions, and open them up.

Press the midpoint of the square, until the sides pop up. Bring the sides together and down towards you. Press the top down neatly into a square, thereby completing the shape that, in origami, is called the preliminary base.

Basket

2

3 Valley fold the lower sloping edges over, so they lie along the middle fold-line. Press them flat and unfold them. Repeat behind. 4 Inside reverse fold the right- and left-hand points into the model along the fold-lines made in step 4. Repeat behind. 5 Valley fold the righthand flap over to the left, as though turning the page of a book. Repeat behind.

6

7 This should be the result that, in origami, is called the bird base with l o w e r e d f l a ps .

Hot Air Balloon: Square Basket © 1998 Yuri and Katrin Shumakov - page 29

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Valley fold the lower sloping edges over, so they lie along the vertical middle line. Press them flat.

Separate the layers of the righthand flap, open out and squash it down neatly into the position shown in step 10.

8

9 10 Separate the layers of the left-hand flap, open out and squash it down neatly.

Separate the layers as shown. Valley fold the right-hand flap over to the left, as though turning the page of a book. Repeat behind.

Repeat steps 8 to 10 for this side.

11 This should be the result. Turn the model over.

12

13

14

Valley fold the lower sloping edges over, so they lie along the middle fold-line. Press them flat. Repeat behind.

Separate the front flap and fold it down, as shown. We will make some preliminary folds on it.

17

15 This should be the result. Turn the model around.

16

Working with this flap, valley fold the left-hand sloping edge to meet the adjacent top edge of the flap, make a limited fold-line, as shown, and unfold it. Repeat the same with the right-hand edge.

Hot Air Balloon: Square Basket © 1998 Yuri and Katrin Shumakov - page 30

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18

Working with the front flap, fold it along the fold-line made in step 17 and along the middle-fold line to bring it into the position shown in the next step. Now fold the tnarrow flap to t h e l e ft a n d unfold it.

19 Fold the resulted narrow flap to the right.

This should be the result. Turn the model over.

20

21 Open out the narrow flap.

22

23 Separate the front flap and fold it down, as shown, and repeat steps 17 to 21 for this flap. 24 Valley fold the right-hand flap over to the left, as though turning the page of a book. Repeat behind.

25 This should be the result. Separate the front flap and fold it down, as shown, and repeat steps 17 to 21 for this flap.

Hot Air Balloon: Square Basket © 1998 Yuri and Katrin Shumakov - page 31

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This should be the result. Repeat steps 17 to 21 behind with the remaining flap.

27

26

This should be the result. Lift up the 4 flaps half way, so the model opens and look like a star when you look from top, as shown in the next step. Turn the model in this position.

28

Working with the centre of the model, insert the finger into the starshaped opening and fold one of the soft stretched edges into the corner, securing the folds so its edges are coincide with the corner.

29

This should be the result. Fold the other soft stretched edges into the respective corners, thereby making the opening of the basket square-shaped.

30 This should be the result. Now pinch the flaps along the existing fold-lines, shaping them into the future supports that will attach the basket to the skirt of the balloon. Hot Air Balloon: Square Basket © 1998 Yuri and Katrin Shumakov - page 32

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Shape the basket itself from inside. Then bring the supports upright. 31

32

Here is the completed square basket with the upright rigid supports that will attach the basket to the skirt of the balloon.

Optional Folds In case you fold the large balloon model, you may make the basket’s upright supports thinner. Working along the edge of the upright support, fold it in half as shown. 33

34 Here is the completed square basket with the thinner upright rigid supports.

Hot Air Balloon: Square Basket © 1998 Yuri and Katrin Shumakov - page 33

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Attaching Square Basket to Balloon Envelope

1

2

Get your balloon envelope (with a piece of line Take the balloon by the bottom lock turned toward attached to it) and the square basket ready. you. Open one of the flaps of the balloon skirt as shown.

4

3

This should be the result. Note that the flap has Take the basket as shown. Fold the tip of the front upright support in the same direction as that a narrow opening. narrow opening in the flap, because this tip will be inserted into this opening later.

6

5 This should be the result.

Repeat step 4 for each of the rest upright supports. Keep the size of the tip and the direction of folding the same for each upright support.

Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 34

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7

8

Now the basket is ready to be attached to the Insert the tip of the respective upright support into the narrow opening of the opened flap as far balloon envelope. as it will go.

9

10

This should be the result. Position the tip in the In the process… middle of the flap and then lock the flap, returning it into the original position.

11

12

This should be the result. Now the tip of the upright support is locked in the balloon skirt. Next, turn the balloon around on 180 degrees to get access to the opposite side.

This is the opposite side of the balloon. Open the middle flap of the balloon skirt as shown. And then insert the tip of the respective upright support into the narrow opening of the opened flap.

Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 35

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14

13

Move the tip of the support into the narrow This should be the result. Now the second upright opening as far as it will go. And then close the support is locked in the balloon skirt. flap, returning it into the original position.

15

16

Now turn the balloon around on 90 degrees to This should be the result. Open the middle flap of the balloon skirt as shown. get access to the marked side.

18

17

Insert the tip of the respective upright support This should be the result. Next, turn the balloon into the narrow opening of the opened flap. And around on 180 degrees to get access to the then close the flap, returning it into the original opposite side. position, thereby locking the tip in it. Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 36

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20

19

This should be the result. Open the middle flap Insert the tip of the last upright support into the narrow opening of the opened flap. And then of the balloon skirt as shown. close the flap, returning it into the original position, thereby locking the tip in it.

22

21 This should be the result.

23

Now you may adjust the position of the basket, moving tips of the upright supports in the respective flaps up and down as desired.

24

This should be the result.

By the way, next time, you can turn the balloon upside down and in this position insert the tips of the basket supports into the skirt or adjust the position of the basket if needed.

Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 37

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26

25

That’s all – the basket is attached to the balloon Here is the completed multi-piece hot air balloon with outside top lock! envelope.

27

28

Congratulation!!! Your origami balloon is ready for take off!

Hot Air Balloon (Outside Top Lock) © 1998 Yuri and Katrin Shumakov - page 38

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One-Piece Hot Air Balloon (Outside Top Lock) by Yuri Shumakov

This version of the balloon folds from a single piece paper. Use a rectangle 1:2 in proportion to get a 15-section balloon of a classic shape. Using a rectangle, 1:3 in proportion, will result in a 23-section balloon of a tubby shape (see the end of this article for details). The outside top lock and the bottom lock of the balloon envelope folded in the same technique as it was for multi-piece balloon shown before. The design of the balloon envelope is having a balloon skirt on the bottom, which may look like a basket.

We will show here the 15-section balloon, as pictured, folded from a rectangle (a double square), 1:2 in proportion that overlap by 1 section. The finished model will be measuring – a bit less than 3/4 of the short side of the initial rectangle, as pictured.

15-section Balloon (1:2 rectangle)

One-Piece Hot Air Balloon (Outside Top Lock) © 1998 Yuri Shumakov - page 1

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Suggested paper: large-size origami paper, Chiyogami paper, gift wrapping paper (not too thin). Also you may experiment with any paper that is sturdy, thin, with fine finish. You even can use craft paper or thicker art paper for a large scale model.

Optionally, you may add a 1-piece square basket to this model, just like it was in the multi-piece balloon. In this case, the square basket folds from a square with a side that is 3/8 of the short side of the rectangle used for the balloon.

In case of adding the basket, the whole balloon will be a bit more than 3/4 of the short side of the initial rectangle. Suggested sizes: Use a large piece of paper. For instance, use a rectangle, 18 x 9 inches (46 x 23 cm) in size, to get the finished model about 6 inches (15 cm) high. It’s exactly what was used for the orange balloon shown in this article. The balloon shown on this page is folded from Chiyogami paper. A rectangle, 22 x 11 inches (55 x 27.5 cm) in size was used for the balloon itself and a 4 1/8-inch (10 cm) square for the basket. The resulted model turned 9 inches (23 cm) high. To hang such origami Hot Air Balloon you will need a piece of line and a little rectangular piece of paper about 1:2 or 1:3 in proportion, which in length is a bit less than the balloon diameter. One-Piece Hot Air Balloon (Outside Top Lock) © 1998 Yuri Shumakov - page 2

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15-section Balloon (1:2 rectangle) Use a rectangle, in proportion 1 to 2. If using two-color paper, begin with colored side up in landscape position. 1 Valley fold the rectangle in half from bottom to top, press the fold flat and open it up.

2 Now divide the rectangle by valley folding on 8 equal vertical sections.

3 Divide each vertical section in half by valley folding, thereby making 16 equal vertical sections. Then turn the paper over.

One-Piece Hot Air Balloon (Outside Top Lock) © 1998 Yuri Shumakov - page 3

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4

On this side, divide each vertical section in half by valley folding, thereby making 32 equal vertical sections in total.

The marked place will be s how n enlarged in the following steps.

Now fold the one vertical section of the right-hand edge along the existing fold-line.

6

Working with the upper and lower right corners, make the diagonal foldlines over two layers of this vertical section by valley folding, as shown. Then, unfold the front flap.

5

This should be the result. Now fold 3 vertical sections of the right-hand edge along the existing fold-line and repeat step 6. 7

8

Repeat steps 5-7 for the each other vertical section all way till to middle of the rectangle and then repeat the same in mirror for the left-hand side.

One-Piece Hot Air Balloon (Outside Top Lock) © 1998 Yuri Shumakov - page 4

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Next 4 steps from 9 to 12 are showing an efficient way to fold the top and bottom edges shown in step 13. But if you’d like, you may jump to step 13 from here.

10

Working with the top, separate the front layer (at the right and left) and valley fold the edge down as shown, as far as it will go. Then repeat the same for the bottom part.

Fold the righthand section as shown. Repeat the same with the left-hand side.

9

Along the fold-lines, valley fold the top and bottom edges, as shown.

This should be the result. Then turn the paper over.

Unfold the top and bottom flaps and the side sections, therefore unfolding the paper completely.

11

12

13

14 This should be the result. Valley fold the rectangle in half from top to bottom.

15 Separate the front flap and valley fold it up to meet the top edge. One-Piece Hot Air Balloon (Outside Top Lock) © 1998 Yuri Shumakov - page 5

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This should be the 16 result. Now valley fold the bottom edge up to meet the central horizontal line (which is the lower edge of the front flap), so the dots coincide, press the fold flat and unfold it.

Unfold the front flap up, as shown. 17

Now working with 2 upper horizontal sections, divide each of them in half by ‘valley’ folding, so the dots coincide. Then, unfold the lower horizontal flap. Then turn the paper over. 18

This should be the result. Examine the picture to realize the connecting points of the diagonals that will go through 3 sections as shown.

A ruler and a bone folder or similar object will provide a great deal of help in making perfect diagonal folds.

19

Place the ruler connecting the dots, as shown. Press the ruler to fix the paper underneath. Keeping the ruler in the position, insert the bone folder under the paper to meet the ruler’s edge and trace the line between the dots, embossing it along the way. Then, remove the ruler and the bone folder from the paper One-Piece Hot Air Balloon (Outside Top Lock) © 1998 Yuri Shumakov - page 6

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Along the embossed guide-line, make a good fold, connecting the dots as shown. Press it flat and unfold it. Now using the same technique, proceed with the other diagonal-folds as shown. Mind the connecting dots.

20

21 This should be the result. Make the diagonal foldlines in another direction, minding the connecting dots. Then turn the paper over.

Examine the picture to realize the connecting points of the folds as shown by the dots. Re-fold the upper part of the vertical middle–line of each double section into a “valley” as shown, so that each resulted ‘valley’ fold is limited by the dots. 22

One-Piece Hot Air Balloon (Outside Top Lock) © 1998 Yuri Shumakov - page 7

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Examine the picture to realize the connecting points of the folds as shown by the dots. Re-fold each marked vertical fold–line, limited by the dots, pinching it into a “mountain”. 23

This should be the result. Examine the picture to realize the connecting points of the diagonals in the lower part. Using the same technique with a ruler and a bone folder shown in steps 19-20, make the diagonal fold-lines, minding the connecting dots. 24

25 This should be the result. Check out all the ‘mountain’ and ‘valley” lines and carefully pleat the paper according these lines.

One-Piece Hot Air Balloon (Outside Top Lock) © 1998 Yuri Shumakov - page 8

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Here is the profile of the resulted pleated paper. The form now is rather 3D, so the following folding process is shown in a photodiagram style. 26

27 This should be the result. Check out all the folds.

28

The other side.

29 The pleated paper is ready to be turned into a balloon.

One-Piece Hot Air Balloon (Outside Top Lock) © 1998 Yuri Shumakov - page 9

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30

31

The one-piece balloon assembles in the same Turn the paper around into this position. Compress way as shown in the article “Hot Air Balloon the lower part of the paper as shown in next step. (Outside Top Lock)”, steps 21 to 118, article pages 10 to 26 (book pages 23 to 39). So we’ll show the short version of the assembly here.

32

33

This should be the result. Keeping the lower part Now, it looks as if you are holding a fan. Turn the squeezed, turn the paper over into the position paper around, so the squeezed part is on the shown in the next step. top.

34

35

This should be the result. Now we are ready to Keeping the most part of the paper squeezed work with the squeezed part in order to do a atop, stretch the right-hand side a bit. Now working balloon’s bottom lock. with the second double section, fold its edge down along the existing fold-lines. The marked place is shown enlarged in the following steps. One-Piece Hot Air Balloon (Outside Top Lock) © 1998 Yuri Shumakov - page 10

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36

37

This should be the result. Now compress the 2 This should be the result. Now turn the left-hand double sections as shown. Then, along the flap as shown, thereby closing this section. existing fold-lines, valley fold the upper edge of the section, bringing it into the position, shown in the next step.

38

39

Working with this double section, fold its edge This should be the result. Now continue to lock down along the existing fold-lines, as pictured, neighbouring sections together, repeating steps thereby locking two neighbouring sections 37-38 over and over. together.

40

41

In the process... For detailed step-by-step locking This should be the result. Note, the first and last process see the article “Hot Air Balloon (Outside sections remain unlocked. Compress the flaps Top Lock)”, steps 27 to 66, article pages 11 to to secure the folds. Then release them. 17 (book pages 24 to 30). One-Piece Hot Air Balloon (Outside Top Lock) © 1998 Yuri Shumakov - page 11

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42

43

This should be the result. The side sections have This should be the result. Move sides closer to remain unlocked. Stretch out the lower part of together, as we are going to connect the side the sundress-like form a little. Now turn the model sections. over.

44

45

Starting from the top, superimpose the right-hand In the process… Apply the top part of the rightsection onto the left-hand section, so that the hand section onto the left-hand section…Be sure folds of layers coincide with each other. all the folds coincide.

46

47

As soon as the top part is aligned, continue to Turn the model around like this. To continue superimpose the right-hand section onto the left- superimposing the section, you have to insert hand section further. Be sure that the left-hand the upper layer under the flap atop, as shown, section is not folded inside and that the folds of as far as it will go and be sure that all the folds both sections are coinciding. of the overlapped sections coincide. One-Piece Hot Air Balloon (Outside Top Lock) © 1998 Yuri Shumakov - page 12

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49

48 This should be the result. Gently, according to the existing fold-lines, bring the top of the overlapping sections to join the other folds at the balloon’s upper centre.

50

This should be the result. Continue bringing the top of the overlapping sections to join the other folds at the balloon’s upper centre. Then turn the model around to finish locking the balloon’s skirt.

51

This should be the result. The marked place is Now before working with the last lock, make sure shown enlarged in the following steps. that the layers of the overlapped sections are aligned and correct it if necessary.

52

53

When the layers of the overlapped sections are This should be the result. Fold the left-hand flap aligned, let’s make the last lock. Valley fold the to the right, closing this section. upper double-layered edge down along the existing fold-lines. One-Piece Hot Air Balloon (Outside Top Lock) © 1998 Yuri Shumakov - page 13

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54

55

Now separate the flaps of this last section and This should be the result. Now the bottom part sink the corner in between the flaps, thereby of the balloon is completely locked. making the final lock of the this part of the balloon.

56

57

Now to secure the folds of the lock, consistently The side view of the balloon. Now turn the model compress a few flaps together all around the around to work with the upper lock. lock. The bottom part of the balloon is well locked.

1 2

1 59

58

2

This should be the result. We will start with the Working the overlapped section marked as 1, overlapped section (marked as 1) that we along the existing fold-line valley fold the corners connected the last in the bottom lock. of the section, as shown. Press the folds flat, thereby locking this section. One-Piece Hot Air Balloon (Outside Top Lock) © 1998 Yuri Shumakov - page 14

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1 1

2

2 61

60 This should be the result. The 1st section is locked. We will do locks on every other section, ie on alternative sections. So skip the next section that is adjoined with the 1st one and concentrate on the following section that is marked as 2.

Working with the section, marked as 2, valley fold the corners along the existing fold-lines, as shown, and compress the folds well, thereby locking this section.

1 2 3 62

63

This should be the result. The section marked 2 is locked. Now skip the next section to work with the other section that is marked as 3. Continue locking the top in the same way.

64

This should be the result. All the locks are ready! If needed, for detailed step-by-step locking process see the article “Hot Air Balloon (Outside Top Lock)”, steps 93 to 117, article pages 22 to 26 (book pages 35 to 39).

65

The top view. Consistently compress the folds of The side view. The 15-section balloon envelope locked sections once again, thereby securing the is ready!!! folds of the locks for sure. One-Piece Hot Air Balloon (Outside Top Lock) © 1998 Yuri Shumakov - page 15

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Paper Stopper Take a piece of line (about 2 times longer that the height of the original rectangle used for the balloon module) and a little rectangular piece of paper about 1:3 in proportion, which in length is a bit less than the balloon diameter. 2

Fold the rectangle in half lengthways.

1 Fold in half again…

3 The paper stopper is ready. Tie the ends of the line in a knot to make a loop. 5 4 Place the paper stopper atop the knot part of the loop as shown and bringing the other end of the loop atop the folded paper, thread it into the little loop with the knot end.

This should be the result. Tighten the lock. If you need you may do another knot to secure it even more. The loop with the paper stopper is ready.

Attaching Line Loop with Paper Stopper

1

2

Get your balloon ready, turned to you by the top Insert the paper stopper into the top opening of opening. Take the paper stopper as well. the balloon.

One-Piece Hot Air Balloon (Outside Top Lock) © 1998 Yuri Shumakov - page 16

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4

3

Push the end of the paper stopper deeper into Pull out the line loop as far as it will go until you the balloon, but keep the line loop outside. see the paper stopper is stopped.

5 This should be the result. The line loop is attached to the balloon. Now you can hang the balloon!

6 Here is the completed one-piece hot air balloon with outside top lock!

You can create the whole origami balloon fleet using various kinds of paper!

8

7

Here is the completed one-piece balloon made f r o m g i ft - w r a p p i n g paper. One-Piece Hot Air Balloon (Outside Top Lock) © 1998 Yuri Shumakov - page 17

You can use recycled paper also – this one-piece balloon was folded from a magazine page.

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Don’t forget that optionally you may add a 1-piece square basket to the model in the same way as it was in the multipiece balloon. In this case, the square basket folds from a square with a side that is 3/8 of the short side of the rectangle used for the balloon.

9 This one-piece balloon is folded from Chiyogami paper. The additional basket to it was folded from hand-made paper ‘Moriki Kozo’. 10 Here is the completed onepiece balloon made from the fine Japanese translucent paper called Sukashi. Such an airy balloon will be a perfect decoration for a wedding!

11

When you master the model, you can fold mini balloons like this one. This miniature one-piece balloon is folded from beautifully patterned Katazome-shi paper, just 11 x 5 1/2 inches (28 x 14 cm) in size. Looks very festive! One-Piece Hot Air Balloon (Outside Top Lock) © 1998 Yuri Shumakov - page 18

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23-section Tubby Balloon (1:3 rectangle) You may fold a tubby balloon, using a rectangle, 1:3 in proportion; it will result in a 23-section balloon with 1 double section overlapped.

The fi ni s hed model will be measuring – a bit less than 3/4 of the short side of the initial rectangle, as pictured.

Follow the diagrams of folding the 15-section Balloon with that difference that in step 2 you divide the rectangle on 12 equal vertical sections; in step 3 - on 24 equal vertical sections; in step 4 - on 48 equal vertical sections.

Here is the completed one-piece tubby balloon with the outside top lock.

One-Piece Hot Air Balloon (Outside Top Lock) © 1998 Yuri Shumakov - page 19

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Hot Air Balloon (Inside Top Lock) by Yuri and Katrin Shumakov

This modular version of Hot Air Balloon consists of a modular balloon envelope with the inside top lock and a 1-piece square basket. Because of the inside top lock, this version of the balloon is more complex than the balloon with the outside top lock. The balloon envelope folds from several balloon modules, each folded from a rectangle, 1:2 in proportion. The balloon module for this balloon with the inside top lock folds practically the same as for the outside top lock version, but with a few extra folds. The quantity of balloon modules may vary from 5 to 8 to receive a desired balloon shape from an elegant 15-section balloon to a tubby 24-section balloon. The balloon modules may overlap by 1 or 2 sections. We will show here the 18-section balloon, as pictured, folded from 6 balloon modules that overlap by one section. Suggested paper: regular origami paper, colour copy paper. Also you may experiment with any paper that is sturdy, thin, with fine finish. You even can use craft paper or thicker art paper for a large scale model.

Suggested sizes: In case of origami paper, use a 10-inch (25 cm) size to get the rectangles 10 x 5 inches (25 x 12.5 cm) in size; respectively use a 3 3/4 -inch (9.4 cm) square for a basket. In this case the finished model will be about 7 1/2 inches (18.5 cm) high. In case of standard copy paper either Letter or A4 format, use its height to maximum. Letter format: use 11 x 5 1/2 inches rectangles for balloon modules and a 4 1/8-inch square for a basket to receive the finished model about 8 3/4 inches high. A4: use 30 x 15 cm rectangles for balloon modules and an 11.3-cm square for a basket to receive the finished model about 23 cm high. To hang such origami Hot Air Balloon you will need a piece of line and a little rectangular piece of paper about 1:2 or 1:3 in proportion, which in length is a bit less than the balloon diameter. Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 1

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Balloon Modules

Basket

The square basket folds from a square with a side that is 3/4 of the short side of the rectangle used for the balloon module.

The finished model will be measuring a bit more than 3/4 of the tall side of the initial rectangle used for the balloon module, as pictured.

Balloon Module (from 1:2 rectangle) 1

If using two-color paper, begin with colored side up in portrait position. Follow steps 1 to 23 of the Balloon Module diagrams shown in the article “Hot Air Balloon (Outside Top Lock)”, article pages 2 to 4 (book pages 15 to 17). Unfold the upper 24 horizontal flap.

This should be the result. Check out all the ‘mountain’ and ‘valley’ lines and then carefully pleat the paper according these lines. 25

Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 2

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Here is the profile of the resulted pleated paper.

26

The form now is rather 3D, so the following folding process is shown in a photodiagram style. 27 This should be the result. Check out all the folds. 28 The other side. 29

The balloon module for the inside top lock version is ready!

Practical Tip! The inside top lock will provide an extra stress to the upper paper edge of each balloon module and if using weak or dried-up paper, the edge may tear a bit during the locking. So in this case, you may reinforce the edge of each balloon module applying a strip of sticky tape on the upper horizontal section on the outer side, as shown. The lock will be inside, so the horizontal section with the sticky tape will be hidden and not seen on the outer side of the resulted balloon.

Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 3

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Assembly of 18-section Balloon Envelope, Inside Top Lock (from 6 Balloon Modules) We will show the assembly of the 18-section balloon, as pictured, folded from 6 balloon modules that overlap by 1 section. For this particular balloon we used regular colour copy paper - the rectangles 11 x 5.5 inches (28 x 14 cm) in size for balloon modules.

The colours scheme used is a classic rainbow. 6 spectral colours work great for this design, namely: red, orange, yellow, green, blue, and violet. So you will need one balloon module per colour. It’s also possible to use just 2 complementary colours like red and green, blue and orange, yellow and violet. In this case your will need 3 balloon modules of each colour. The assembly of the balloon with the inside top lock starts from locking the balloon’s top. The top lock will remain inside, so there will be no access to it once the balloon is ready. Hence it’s imperative that you do the inside top lock of the balloon correctly following the instructions diligently. And after that the balloon will be locked at the bottom, using the same method as it was shown for the bottom lock of the balloon with the outside top lock in the article “Hot Air Balloon (Outside Top Lock)”, article pages 11 to 21 (book pages 24 to 34). You will need 6 paper clips (one per module) in the process to temporarily keep the overlapping sections aligned before they are locked at the bottom of the balloon. So prepare the balloon modules and diligently follow the assembly instructions that shown next in a great detail with step-by-step photo-diagrams and written comments.

Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 4

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1

2

3

4

5

6 1 2

1 Get ready all the balloon modules in an appropriate order. In our case, it’s 6 modules, arranged in the colours scheme of a classic rainbow, namely: red, orange, yellow, green, blue, and violet.

Take the first module. Note, the modules should be positioned by the inner side toward you. In case you are using two-colour paper, it should be turned by the inside colour. The marked place is shown enlarged in the following steps.

4

3

Locate the double section at the middle and This should be the result. Now fold the front compress the side folds to it, bringing the paper triangular flap down, thereby locking this middle into the position shown in the next step. double section.

6

5 In the process…

This should be the result. The middle double section is well locked. This is the basic lock we will be using to lock the balloon’s top.

Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 5

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1

2

8

7

Loosen the side sections. The first module is Take the 2nd module. Place the left-hand double ready to be connected to the next one. section of the 2nd module atop the 1st one, aligning paper along the folds and hence overlapping the 1st module by one double section.

10

9

This should be the result. Compress the folds Now open the joined double section into the together, so that they adjust their position. position shown in the next step.

11

12

This should be the result. Now fold the front In the process… triangular flap down, thereby locking this double section, connecting two modules as well. Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 6

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13

14

This should be the result. This double section is This should be the result. Fold the front triangular well locked. Now turn one right-hand flap over flap down, thereby locking this double section. to the left, as if you are turning the page of a book.

16

15 In the process…

This should be the result. This double section is well locked. Now turn one right-hand flap over to the left, as if you are turning the page of a book.

18

17

This should be the result. Fold the front triangular This double section is well locked. Now turn rightflap down, thereby locking this double section. hand flaps over to the left, as if you are closing a book. Then loosen the form. Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 7

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1

2

3

20

19

The 1st and 2nd modules are connected. Take This should be the result. the 3rd module. Place the left-hand double section of the 3rd module atop the 2nd one, aligning paper along the folds and hence overlapping the 2nd module by one double section.

21

22

Gently compress the connected modules together, Now open the joined section into the position so that they adjust their position. Then release shown in the next step. them.

23

24

This should be the result. Now fold the front This should be the result. This double section is triangular flap down, thereby locking this double locked. Now turn one right-hand flap over to the section, connecting two modules as well. left, as if you are turning the page of a book. Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 8

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25

26

Fold the front triangular flap down, thereby locking This should be the result. This double section is this double section. locked. Now turn one right-hand flap over to the left, as if you are turning the page of a book.

27

28

This should be the result. Now fold the front This double section is well locked. Now turn righttriangular flap down, thereby locking this double hand flaps over to the left, as if you are closing a book. section.

12 3

29

4

30

Gently compress the folds. Then loosen the form. Now add the 4th module, placing the left-hand double section of the 4th module atop the last section of the 3rd one, aligning paper along the folds and hence overlapping the 3rd module by one double section. Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 9

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32

31

This should be the result. Gently compress the Now open the joined section into the position folds, so that they adjust their position. shown in the next step.

34

33

This should be the result. Now fold the front This should be the result. This double section is triangular flap down, thereby locking this double locked. Now turn one right-hand flap over to the section, connecting two modules as well. left, as if you are turning the page of a book.

35

36

Fold the front triangular flap down, thereby locking This double section is locked. Now turn one rightthis double section. hand flap over to the left, as if you are turning the page of a book. Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 10

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38

37

This should be the result. Now fold the front This double section is well locked. Now turn righttriangular flap down, thereby locking this double hand flaps over to the left, as if you are closing a book. section.

1 2 3 4

5

40

39

Gently compress the folds. Then loosen the form. Add the 5th module, placing the left-hand double section of the 5th module atop the last section of the 4th one, aligning paper along the folds and hence overlapping the 4th module by one double section.

41

42

This should be the result. Gently compress the Now open the joined section into the position folds, so that they adjust their position. shown in the next step.

Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 11

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43

44

This should be the result. Now fold the front This double section is locked. Now turn one righttriangular flap down, thereby locking this double hand flap over to the left, as if you are turning section, connecting two modules as well. the page of a book.

46

45

Fold the front triangular flap down, thereby locking This should be the result. This double section is locked. Now turn one right-hand flap over to the this double section. left, as if you are turning the page of a book.

48

47

Fold the front triangular flap down, thereby locking This double section is well locked. Now turn rightthis double section. hand flaps over to the left, as if you are closing a book. Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 12

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12 34 5

49

6

50

Gently compress the folds. Then loosen the form. Add the final 6th module in the same way as you did before, placing the left-hand double section of the 6th module atop the last section of the 5th one, aligning paper along the folds and hence overlapping the 5th module by one double section.

52

51

This should be the result. Gently compress the Now fold the front triangular flap down, thereby folds, so that they adjust their position. Then open locking this double section, connecting two the joined section into the position shown in the modules as well. next step.

53

54

This double section is locked. Now turn one right- Fold the front triangular flap down, thereby locking hand flap over to the left, as if you are turning this double section. the page of a book. Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 13

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56

55

Now turn right-hand flaps over to the left, as if Gently compress the folds. Note, the 1st module has 2 not locked points at the left, while the last you are closing a book. 6th module at the right has 3 not locked points. This way it will be easier to connect the first and last modules in the next steps.

58

57

Loosen the model. This should be the result. Now we will connect the 1st and 6th modules Turn the paper around into the position shown together. The marked place is shown enlarged in the in the next step. following steps.

59

60

Stretching the sections a bit, we will apply one Top view. The double section of the red module double section of the 1st module (red, in our will completely cover the last double section of case) atop of the last section of the 6th module the violet module. (violet). Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 14

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61

62

Keeping the inner “tube” of locks squeezed, apply Keep the inner “tube” of locks squeezed. the double section of the red module atop of the Meanwhile open the sides of the joined section last section of the violet module. Be sure all the to prepare it for locking. folds coincide.

64

63

Now fold the front triangular flap of the joined This should be the result – the double section is section down, thereby locking this double section, locked. Now turn one right-hand flap over to the left, as if you are turning the page of a book. connecting two modules as well.

65

66

Fold the front triangular flap down, thereby locking This should be the result. Now turn two left-hand this double section. flaps over to the right, thereby preparing the final double section for locking. Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 15

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67

68

Now fold the front triangular flap down, thereby This should be the result. The inside top lock is completed! locking this last double section.

69

70

Now consistently examine each section and Top view. Now align edges of paper on press/pinch their folds flat to secure the locks. overlapping sections, so the folds of layers coincide.

71

72

This should be the result. The form now resembles Check the overlapping sections from this side an open flower. Turn the model over. too, so that the folds of layers coincide. Turn the model over. Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 16

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Now when all the locks and overlapping sections It might be more convenient to place one hand are checked, we will push the inside lock down… behind the form and push with the other, so that the modules are slightly opening.

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Continue to push at the middle, so that the inside In this point, it’s convenient to place the form at lock is sinking deeper and the modules are starting the flat surface again. Sink the inside lock deeper as far as it will go, so that the modules are closed. to close.

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This should be the result. Now the form resembles Working with the overlapping sections, be sure a vase. that the layers and folds coincide all the way from the bottom to the top, inside & outside. Temporarily place the paper clip at the marked place to keep the overlapping sections well aligned. Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 17

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This should be the result. Align the next …and secure the connection of the overlapping sections atop with a paper clip. Repeat the same overlapping sections… with the other overlapping sections.

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This should be the result. Note, the paper clips Inside view. This should be the result. are places just temporarily to facilitate the process of the assembly. The paper clips will be consistently removed when we will lock the balloon’s bottom.

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Closer view of the inside lock. Be sure that all Top view of the balloon. Check the overlapping the layers are in the correct places inside. sections from this side too, so that the folds of layers coincide. Turn the model over into a vaselike position. Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 18

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Gently bring the upper part together, as shown. Now all is ready to make the final locking of the balloon envelope. The marked place is shown enlarged in the following steps. Note, remove paper clips consistently right before locking each particular overlapping section.

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Separate the layers to start with a single-layered This should be the result. (Remove the paper section. For instance, let’s start from the middle clip from the left-hand flap.) Working with the opened section, valley fold the section of the yellow module. top edge down along the existing fold-lines as shown.

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This should be the result. Now turn one (double This should be the result. Along the existing foldlayered) left-hand flap over to the right, as if you lines, fold the right-hand flap down, thereby locking are turning the page of a book. this double section. Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 19

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In the process… This balloon’s bottom lock is using the same technique as the bottom lock shown in the article “Hot Air Balloon (Outside Top Lock)”, article pages 11 to 21 (book pages 24 to 34).

This should be the result. This double section is locked. Note that the vertical axis of the resulted flap is not coinciding with the vertical axis of the whole model. Now turn one left-hand flap over to the right.

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This should be the result. Along the existing fold- This should be the result. Now turn one left-hand lines, fold the right-hand flap down, thereby locking flap over to the right, as if you are turning the page of a book. this double section.

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Now, along the existing fold-lines, fold the right- This should be the result. Continue to lock the hand flap down, thereby locking this double sections in the same way, consistently removing section. paper clips right before locking each particular overlapping section. Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 20

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A few more sections are locked. Continue locking This should be the result. Turn one left-hand flap the sections in the same way until it comes to of the last section over to the right, as if you are turning the page of a book. the last section.

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Along the existing fold-lines, fold the right-hand This should be the result. Separate the layers of flap down, thereby locking this double section. the triangular flap…

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This should be the result. Fold the corner down, This should be the result. The balloon’s bottom thereby locking the final section. part is well locked!

Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 21

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104

103 The view of the balloon’s bottom.

The 18-section Balloon envelope with the inside top lock is ready!

Attaching Line Loop with Paper Stopper Take a piece of line (about 2 times longer that the height of the original rectangle used for the balloon module) and a little rectangular piece of paper about 1:2 or 1:3 in proportion, which in length is a bit less than the balloon diameter. Make the paper stopper according to diagrams shown in the article “One-Piece Hot Air Balloon (Outside Top Lock)”, article page 16 (book page 67).

1 Get your balloon ready, turned to you by a top opening and take the paper stopper as well.

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Insert the paper stopper into the top opening of Push the end of the paper stopper deeper into the balloon. Be sure that the knot is tied up well the balloon, but keep the line loop outside. and not sliding off the paper stopper. Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 22

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Pull out the line loop as far as it will go until you This should be the result. The line loop is attached see the paper stopper is stopped inside. to the balloon. Now you can hang the balloon!

Attaching Square Basket to Balloon Envelope

Fold the square basket according to diagrams shown in the article “Hot Air Balloon (Outside Top Lock)”, article pages 29 to 33 (book pages 42 to 46). 1 The detailed process of attaching the basket is shown in the article “Hot Air Balloon (Outside Top Lock)”, article pages 34 to 37 (book pages 47 to 50). So here is the short version.

2

Get your balloon envelope (with a piece of line attached to it) and the square basket ready. Take the balloon by the bottom lock turned toward you. Open one of the flaps of the balloon skirt as shown.

3

Note that the flap has a narrow opening. Take Repeat step 2 for each of the rest upright supports. the basket as shown. Fold the tip of the front Keep the size of the tip and the direction of folding upright support in the same direction as that the same for each upright support. Insert the tip narrow opening in the flap, because this tip will of the respective upright support into the narrow opening of the opened flap as far as it will go. be inserted into this opening later. Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 23

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This should be the result. Position the tip in the This should be the result. Now the tip of the middle of the flap and then lock the flap, returning upright support is locked in the balloon skirt. Next, it into the original position. turn the balloon around to get access to the opposite side.

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Open the middle flap of the balloon skirt as This should be the result. Attach the side upright shown. And then insert the tip of the respective supports to the respective flaps of the balloon upright support into the narrow opening of the skirt in the same way. opened flap. And then close the flap, returning it into the original position.

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You may adjust the position of the basket, moving The basket is attached to the balloon envelope! the upright supports in the respective flaps up and down as desired. Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 24

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10 Here is the completed multi-piece hot air balloon with inside top lock!

Congratulation!!! Your origami balloon is ready for take off!

Hot Air Balloon (Inside Top Lock) © 1998 Yuri and Katrin Shumakov - page 25

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One-Piece Hot Air Balloon (Inside Top Lock) by Yuri Shumakov

This version of the balloon (with the inside top lock) folds from a single piece paper. Use a rectangle 1:2 in proportion to get a 15-section balloon of a classic shape. If using a rectangle, 1:3 in proportion, it results in a 23-section balloon of a tubby shape (see the end of this article for details). The inside top lock and the bottom lock of the balloon envelope folded in the same technique as it was for the multi-piece balloon with the inside top lock shown before. The design of the balloon envelope is having a balloon skirt on the bottom, which may look like a basket.

We will show here the 15-section balloon, as pictured, folded from a rectangle (a double square), 1:2 in proportion that overlap by 1 section. The finished model will be measuring – a bit less than 3/4 of the short side of the initial rectangle, as pictured.

15-section Balloon (1:2 rectangle)

One-Piece Hot Air Balloon (Inside Top Lock) © 1998 Yuri Shumakov - page 1

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Suggested paper: large-size origami paper, Chiyogami paper, gift wrapping paper (not too thin), even holographic foil paper. Many fine Japanese papers can be used. You may experiment with any paper that is sturdy, thin, with fine finish. You even can use craft paper or thicker art paper for a large scale model.

Optionally, you may add a 1-piece square basket to this model, just like it was in the multi-piece balloon. In this case, the square basket folds from a square with a side that is 3/8 of the short side of the rectangle used for the balloon.

In case of the basket, the whole balloon will be a bit more than 3/4 of the short side of the initial rectangle.

Suggested sizes: Use a large piece of paper. For instance, use a rectangle, 18 x 9 inches (46 x 23 cm) in size, to get the finished model about 6 inches (15 cm) high.

For the silver balloon shown on this article we used a rectangle 7 1/2 x 15 inches (19 x 38 cm) in size cut from a 7 1/2 inches (19 cm) wide roll of Gift Wrap Holographic Foil paper, which is quite handy when you need long rectangles, for instance, 1:2 or 1:3. This particular balloon itself turned 5 inches (12.5 cm) high, and in a combination with the basket - 6 inches (15 cm) high. To hang such origami Hot Air Balloon you will need a piece of line and a little rectangular piece of paper about 1:2 or 1:3 in proportion, which in length is a bit less than the balloon diameter.

One-Piece Hot Air Balloon (Inside Top Lock) © 1998 Yuri Shumakov - page 2

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15-section Balloon (1:2 rectangle) Use a rectangle, in proportion 1 to 2. If using two-color paper, begin with colored side up in landscape position. Follow steps 1 to 25 of the 15-section Balloon diagrams shown in the article “One-Piece Hot Air Balloon (Outside Top Lock)”, article pages 3 to 8 (book pages 54 to 59).

25 Unfold the upper horizontal flap.

26

This should be the result. Check out all the ‘mountain’ and ‘valley” lines and carefully pleat the paper according these lines.

Check out the Practical Tip on how to reinforce the upper edge if using weak paper in the article “Hot Air Balloon (Inside Top Lock)”, article page 3 (book page 73).

27 Here is the profile of the resulted pleated paper. The form now is rather 3D, so the following folding process is shown in a photo-diagram style.

One-Piece Hot Air Balloon (Inside Top Lock) © 1998 Yuri Shumakov - page 3

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The pleated paper is ready. The one-piece balloon The other side. Check out all the folds. Turn the assembles in the same way as shown in the paper over into the position shown in the next article “Hot Air Balloon (Inside Top Lock)”, steps step. 1 to 104 on article pages 5 to 22 (book pages 75 to 92). So here we’ll show the short version.

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Note, the paper should be positioned by the inner This should be the result. The marked place is side toward you. In case you are using two-colour shown enlarged in the following steps. paper, it should be turned by the inside colour (white in our case). We will start with forming the top lock. Compress the upper part of the paper.

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Release the upper part of the paper, keeping it Locate the double section at the left-hand side, just a bit squeezed as shown. which follows after 2 points atop as shown. Open this double section, bringing it into the position shown in the next step. One-Piece Hot Air Balloon (Inside Top Lock) © 1998 Yuri Shumakov - page 4

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This should be the result. Now fold the front This should be the result. The double section is triangular flap down, thereby locking this double well locked. This is the basic lock we will be using section. to lock the balloon’s top. Now turn one right-hand flap over to the left, as if you are turning the page of a book.

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This should be the result. Fold the front triangular The second double section is locked. Now turn flap down, thereby locking this double section. one right-hand flap over to the left, as if you are turning the page of a book.

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This should be the result. Again fold the front This should be the result. This double section is triangular flap down, thereby locking this double well locked. Continue to lock double sections in the same way. section. One-Piece Hot Air Balloon (Inside Top Lock) © 1998 Yuri Shumakov - page 5

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In the process… Keep the locked sections Just 2 double sections left not locked at the right. Make one more lock, but keep the last double squeezed to facilitate the work. section not locked.

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This should be the result. Now we have 2 points Gently compress the paper, so that the folds at the left, the block of locked section and 2 points adjust their position. Then release it. at the right.

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This should be the result. Turn the form around Now we will connect the both ends together, into the position shown in the next step. thereby making the final locking. Gently bring the sides around and together. One-Piece Hot Air Balloon (Inside Top Lock) © 1998 Yuri Shumakov - page 6

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Apply the right-hand double section atop of the This should be the result. Keeping the inner “tube” left-hand section. Be sure that all the folds of the of locks squeezed, gently open the sides of one sections coincide at the top, where we’ll make joined section to prepare it for locking. the lock. Note, they cannot coincide all the way from the inner tube to edges yet – but they will later.

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This should be the result. Now fold the front This double section is locked. Now turn one lefttriangular flap of the joined section down, thereby hand flap over to the right, as if you are turning locking this double section. the page of a book.

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Keep the inner “tube” of locks squeezed. Fold This should be the result. The inside top lock is the front triangular flap down, thereby locking completed! Now consistently examine each section and press/pinch their folds flat to secure this last double section. the locks. One-Piece Hot Air Balloon (Inside Top Lock) © 1998 Yuri Shumakov - page 7

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Now when all the locks are checked, gently push In the process… the inside lock down…

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Continue to push at the middle, so that the inside Correct the overlapping sections from this side lock is sinking deeper and the sides are starting too, so that the folds of both layers coincide. to close. Now you can align edges of paper on overlapping sections, so the folds of both layers coincide. Then turn the model over.

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Checking the overlapping sections, be sure that With your fingers pinch the layers at the balloon’s the layers and folds coincide all the way from top bottom to keep the overlapping sections well aligned. to bottom, inside and outside. One-Piece Hot Air Balloon (Inside Top Lock) © 1998 Yuri Shumakov - page 8

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59

58 Inside view. This should be the result. Be sure that all the layers are in the correct places inside. As the bottom will be locked there will be no access to the inside later to correct the adjacent layers.

Pinching the adjacent layers of the overlapping sections (as shown at the right), bring the folds together to the middle, preparing them to the final locking.

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Side view. This should be the result. Now we This should be the result. Working with the opened will lock the balloon’s bottom, staring from the section, valley fold the top edge down along the section next to the right from overlapping sections. existing fold-lines as shown. Keeping the “tube” of folds together, separate the layers and open one double section.

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This should be the result. Now turn one left-hand This should be the result. Along the existing foldflap over to the right, as if you are turning the lines, fold the right-hand flap down, thereby locking page of a book. this double section. One-Piece Hot Air Balloon (Inside Top Lock) © 1998 Yuri Shumakov - page 9

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This should be the result. This double section is This should be the result. Along the existing foldlocked. Note that the vertical axis of the resulted lines, fold the right-hand flap down, thereby locking flap is not coinciding with the vertical axis of the this double section. whole model. Now turn one left-hand flap over to the right.

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This should be the result. This double section is A few more sections are left to be locked. Continue locked. Continue to lock the sections in the same locking the sections in the same way until it comes to the last triangular flap. way.

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This should be the result. Separate the layers of This should be the result. The balloon’s bottom the triangular flap and fold the corner down, part is well locked! thereby locking the final section. One-Piece Hot Air Balloon (Inside Top Lock) © 1998 Yuri Shumakov - page 10

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The bottom view of the balloon.

The 15-section Balloon envelope with the inside top lock is ready!

Attaching Line Loop with Paper Stopper Take a piece of line (about 2 times longer that the height of the original rectangle used for the balloon module) and a little rectangular piece of paper about 1:2 or 1:3 in proportion, which in length is a bit less than the balloon diameter.

1 Get your balloon ready, turned toward you by its top opening. Prepare the paper stopper as well.

2

Make the paper stopper according to diagrams shown in the article “One-Piece Hot Air Balloon (Outside Top Lock)”, article page 16 (book page 67).

3

Insert the paper stopper into the top opening of Push the end of the paper stopper deeper into the balloon. Be sure that the knot is tied up well the balloon, but keep the line loop outside. and not sliding off the paper stopper. One-Piece Hot Air Balloon (Inside Top Lock) © 1998 Yuri Shumakov - page 11

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Pull out the line loop as far as it will go until you This should be the result. The line loop is attached see the paper stopper is stopped inside. to the balloon. Now you can hang the balloon!

6 Here is the completed 15-section one-piece hot air balloon with the inside top lock! Here is the completed onepiece balloon made from fancy gift-wrapping paper.

7

8 Don’t forget that optionally you may add a 1-piece square basket to the model in the same way as it was in the multipiece balloon. In this case, the square basket folds from a square with a side that is 3/8 of the short side of the rectangle used for the balloon.

One-Piece Hot Air Balloon (Inside Top Lock) © 1998 Yuri Shumakov - page 12

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23-section Tubby Balloon (1:3 rectangle) You may fold a tubby balloon, using a rectangle, 1:3 in proportion; it will result in a 23-section balloon with 1 double section overlapped.

The fi ni s hed model will be measuring – a bit less than 3/4 of the short side of the initial rectangle, as pictured.

Follow the diagrams of folding the 15-section Balloon with that difference that in step 2 you divide the rectangle on 12 equal vertical sections; in step 3 - on 24 equal vertical sections; in step 4 - on 48 equal vertical sections.

Here is the completed one-piece tubby balloon with the inside top lock. One-Piece Hot Air Balloon (Inside Top Lock) © 1998 Yuri Shumakov - page 13

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Optionally, you may add a 1-piece square basket to this model, just like it was in the multi-piece balloon. In this case, the square basket folds from a square with a side that is 3/8 of the short side of the rectangle used for the balloon.

In case of the basket, the whole balloon will be a bit more than 3/4 of the short side of the initial rectangle.

Here is the completed one-piece tubby balloon with the inside top lock with the one-piece square basket attached to it.

One-Piece Hot Air Balloon (Inside Top Lock) © 1998 Yuri Shumakov - page 14

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Montgolfier Balloon (8-Module Envelope) by Yuri Shumakov

This multi-piece model of Montgolfier balloon consists of a modular round balloon envelope and a 1-piece round basket. The chosen name, Montgolfier Balloon, is referring to the round shape of early balloons invented by Montgolfier brothers. Their balloon called a Montgolfiere was at the first public demonstration at Annonay, France on June 4, 1783, which was an exciting moment that produced a strong impact on the world and was an important step for the mankind in space exploration! The Montgolfier envelope folds from 8 modules, each folded from a rectangle, 1:2 in proportion. The modules overlap by 1 double section, so the final Montgolfier balloon has 24 double sections, i.e. 3 sections per module.

Montgolfier Modules The finished balloon envelope will be measuring – a bit more than 2/3 of the tall side of the initial rectangle used for the Montgolfier module, as pictured.

Basket

The finished model with the b a s k e t a t ta c h e d w i l l b e measuring – about 3/4 of the tall side of the initial rectangle used for the Montgolfier module, as pictured.

The round basket folds from a square with a side that is 3/4 of the short side of the rectangle used for the Montgolfier module.

Suggested paper: regular origami paper, colour copy paper. Also you may experiment with any paper that is sturdy, thin, with fine finish. You even can use craft paper or thicker art paper for a large scale model. Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 1

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Top Lock

LETTER

Balloon Envelope

Suggested sizes: In case of standard copy paper either Letter or A4 format, use its height to maximum.

Envelope Skirt (Bottom Lock)

Letter format: use 11 x 5 1/2 inches rectangles for balloon modules and a 4 1/8-inch square for a basket to receive the finished model about 8 1/5 inches high.

Round Basket

A4: use 30 x 15 cm rectangles for balloon modules and an 11.3-cm square for a basket to receive the finished model 22.5 cm high. A4

The top lock of the Montgolfier balloon and its bottom lock both are using the same principle as the bottom lock of the envelope skirt presented in the previous balloon models. In case of origami paper, use a 10-inch (25 cm) size to get the rectangles 10 x 5 inches (25 x 12.5 cm) in size; respectively use a 3 3/4 -inch (9.4 cm) square for a basket. In this case the finished model will be about 7 1/2 inches (18.5 cm) high.

To hang such origami Montgolfier Balloon you will need a piece of line and a little rectangular piece of paper about 1:2 or 1:3 in proportion, which in length is a bit less than the balloon diameter. Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 2

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Montgolfier Module (from 1:2 rectangle) Use a rectangle, in proportion 1 to 2. If using two-color paper, begin with colored side down in portrait position. Valley fold the rectangle in half from bottom to top, press just little fold-marks on sides and open it up. Turn the paper over.

Now valley fold the rectangle in half from side to side, press the fold flat and unfold it up.

Valley fold the left and right-hand edges to meet the middle fold-line, press the folds flat and unfold them. Then turn the paper over. 3

2

1

Now fold the one vertical section of the right-hand edge along the existing fold-line.

Divide each vertical section in half by valley folding, thereby making 8 equal vertical sections. 4

5

This should be the result. 6

This should be the result. Now fold 3 vertical sections of the right-hand edge along the existing fold-line and repeat step 6.

Working with the upper and lower right corners, make the diagonal foldlines over two layers of this vertical section by valley folding, as shown. Then, unfold the front flap.

8 7 Repeat steps 5-7 as in mirror for the left-hand side.

Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 3

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Next 4 steps from 9 to 12 are showing an efficient way to fold the top and bottom edges shown in step 13. But if you’d like, you may jump to step 13 from here.

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9

This should be the result. Then turn the paper over.

Fold the leftand righthand sections as shown.

Valley fold the bottom edge up to meet the middle fold-marks made in step 1, so the shown dots coincide. Press the fold flat and unfold it. 14

Valley fold the bottom edge up to meet the fold-line made in the previous step, so the shown dots coincide. Press the fold flat and unfold it.

15

Working with the top, separate the front layer and valley fold it as shown, as far as it will go. Then repeat for the bottom part. 11

Along the fold-lines, valley fold the top and bottom edges, as shown. 12 13

Unfold the top and bottom flaps and the side sections, therefore unfolding the paper completely.

This should be the result. Now valley fold the upper edge down to meet the fold-line made in step 14, so the dots coincide, press the fold flat and unfold it. 16

17 Now working with 2 upper horizontal sections, divide each of them in half by ‘valley’ folding, so the dots coincide.

Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 4

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This should be the result.

This should be the result. Unfold the upper horizontal flap.

19 18

Working with the selected 4 horizontal sections, make diagonal “mountain” folds as shown. It’s convenient to work “in the air”, successively pinching a needed diagonal in each rectangle.

20

This should be the result. Now re-fold the selected parts of the vertical fold-lines into the ‘valleys’.

21

22 This should be the result. Unfold the lower horizontal flap. This should be the result. Then turn the paper over. 23 Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 5

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This should be the result. Check out all the ‘mountain’ and ‘valley” lines and then carefully pleat the paper according these lines. 25

Here is the profile of the resulted pleated paper. 26

24 Working with the selected horizontal section at the lower part, make diagonal “mountain” folds as shown. It’s convenient to work “in the air”, successively pinching a needed diagonal in each rectangle. Then turn the paper over. The form now is rather 3D, so the following folding process is shown in a photo-diagram style.

27

This should be the result. Check out all the folds. 28 The other side.

29 The Montgolfier module is ready! Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 6

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Assembly of Montgolfier Envelope (from 8 Modules) We will show the assembly of the 24-section envelope, as pictured, folded from 8 Montgolfier modules that overlap by 1 section. For this particular Montgolfier balloon we used regular colour copy paper - the rectangles 11 x 5 1/2 inches (28 x 14 cm) in size for modules.

The colours scheme used is a classic rainbow, spreading into 8 colours - red, orange, light orange, yellow, green, blue, deep blue and violet. So you will need one Montgolfier module per colour. It’s also possible to use just 2 complementary colours like red and green, blue and yellow etc. In this case your will need 4 Montgolfier modules of each colour. The assembly starts from the top lock, which will be using the same principle as the bottom lock of the previous balloon models. You will need 8 paper clips (one per module) in the process to temporarily keep the overlapping sections well aligned before they are locked at the bottom of the balloon. So prepare the Montgolfier modules and diligently follow the assembly instructions that shown next in a great detail with step-by-step photo-diagrams and written comments. Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 7

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Get ready all the 8 modules in an appropriate Take the first module. Note, the modules should order. We will connect modules from the right to be positioned by the inner side toward you. In case you are using two-colour paper, it should the left. be turned by the inside colour. The marked place is shown enlarged in the following steps.

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Working with the top part of the module, locate This should be the result. Now open the second the second double section from the right and double section from the left, squeezing the side along the existing fold-lines fold its edge down, sections as shown in the next step. bringing the paper into the position shown in the next step.

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5 This should be the result. Locate the narrow flap in the middle and fold it to the left, bringing this double section into the fully open position as shown in the next step.

This should be the result. Now along the existing fold-lines, valley fold the upper edge of the section, bringing it into the position, shown in the next step.

Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 8

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7 This double section is locked. Note that the vertical axis of the resulted flap is not coinciding with the vertical axis of the whole module. This is the basic lock we will be using to lock the balloon’s top. Now, compress the folds together.

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This should be the result. Compress the folds together to secure the lock. Then loosen the paper and the first module is ready to be connected to the next one.

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Take the 2nd module, positioning it at the left This should be the result. Compress the folds from the 1st one. Place the left-hand double together, so that they adjust their position. section of the 1st module atop the 2nd one, aligning paper along the folds and hence overlapping the 2nd module by 1 double section.

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Now open the joined double section into the This should be the result. Note, that the narrow position shown in the next step. flap in the middle is folded to the left. Remember this position, as we will lock each next section in the same manner. Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 9

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Now along the existing fold-lines, fold the right- This should be the result. The double section is hand flap down, thereby locking this joined double locked. Note that the vertical axis of the resulted section. flap is not coinciding with the vertical axis of the whole model. Now turn one left-hand flap over to the right.

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This should be the result. Along the existing fold- This should be the result. This double section is lines, fold the right-hand flap down, thereby locking locked. Now turn one left-hand flap over to the right to prepare the next section for locking. this double section.

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This should be the result. Along the existing fold- This should be the result. This double section is lines, fold the right-hand flap down, thereby locking well locked. Now when one double section is this double section. remaining not locked at each side, fold the side flaps together, as if you are closing a book. Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 10

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This should be the result. Compress the folds Take the 3rd module, positioning it at the left. together to secure the locks. Then loosen the Place the left-hand double section of the 2nd paper to get ready to connect to the next module. module atop the 3rd one, aligning paper along the folds and hence overlapping the 3rd module by 1 double section.

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This should be the result. Gently compress the Now open the joined double section into the modules together, so that they adjust their position. position shown in the next step.

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This should be the result. Now along the existing This should be the result. This double section is fold-lines, fold the right-hand flap down, thereby locked. Now turn one left-hand flap over to the locking this joined double section. right, as if you are turning the page of a book. Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 11

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Along the existing fold-lines, fold the right-hand This double section is locked. Now turn one leftflap down, thereby locking this double section. hand flap over to the right, as if you are turning the page of a book.

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This should be the result. Now along the existing This double section is well locked. Now when fold-lines, fold the right-hand flap down, thereby one double section is remaining not locked at each side, fold the side flaps together, as if you locking this double section. are closing a book.

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This should be the result. Compress the folds Take the 4th module, positioning it at the left. together to secure the locks. Then loosen the Place the left-hand double section of the 3rd paper. module atop the 4th one, aligning paper along the folds and hence overlapping the 4th module by 1 double section. Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 12

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This should be the result. Gently compress the Now open the joined double section into the modules together, so that they adjust their position shown in the next step. position.

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This should be the result. Along the existing fold- This joined double section is locked. Now turn lines, fold the right-hand flap down, thereby locking one left-hand flap over to the right, as if you are turning the page of a book. this joined double section.

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Along the existing fold-lines, fold the right-hand This double section is locked. Now turn one leftflap down, thereby locking this double section. hand flap over to the right, as if you are turning the page of a book. Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 13

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This should be the result. Now along the existing This double section is well locked. Now when fold-lines, fold the right-hand flap down, thereby one double section is remaining not locked at each side, fold the side flaps together, as if you locking this double section. are closing a book.

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This should be the result. Compress the folds Take the 5th module, positioning it at the left. together to secure the locks. Then loosen the Place the left-hand double section of the 4th paper to get ready to connect to the next module. module atop the 5th one, aligning paper along the folds and hence overlapping the 5th module by one double section.

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This should be the result. Gently compress the Now open the joined double section into the modules together, so that they adjust their position. position shown in the next step.

Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 14

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This should be the result. Along the existing fold- This joined double section is locked. Now turn lines, fold the right-hand flap down, thereby one left-hand flap over to the right, as if you are turning the page of a book. locking this joined double section.

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This should be the result. Along the existing fold- This double section is locked. Now turn one leftlines, fold the right-hand flap down, thereby locking hand flap over to the right, as if you are turning the page of a book. this double section.

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This should be the result. Now along the existing This double section is well locked. Now when fold-lines, fold the right-hand flap down, thereby one double section is remaining not locked at locking this double section. each side, fold the side flaps together, as if you are closing a book. Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 15

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This should be the result. Compress the folds Take the 6th module, positioning it at the left. together to secure the locks. Then loosen the Place the left-hand double section of the 5th paper to get ready to connect to the next module. module atop the 6th one, aligning paper along the folds and hence overlapping the 6th module by one double section.

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This should be the result. Gently compress the This should be the result. Along the existing foldmodules together, so that they adjust their position. lines, fold the right-hand flap down, thereby locking Then open the joined double section into the this joined double section. position shown in the next step.

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This joined double section is locked. Now turn This should be the result. Along the existing foldone left-hand flap over to the right, as if you are lines, fold the right-hand flap down, thereby locking turning the page of a book. this double section. Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 16

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This double section is locked. Now turn one left- This should be the result. Now along the existing hand flap over to the right, as if you are turning fold-lines, fold the right-hand flap down, thereby locking this double section. the page of a book.

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This double section is well locked. Now when This should be the result. Compress the folds one double section is remaining not locked at together to secure the locks. Then loosen the each side, fold the side flaps together, as if you paper to get ready to connect to the next module. are closing a book.

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Take the 7th module, positioning it at the left. This should be the result. Gently compress the Place the left-hand double section of the 6th modules together, so that they adjust their position. module atop the 7th one, aligning paper along Then open the joined double section into the the folds and hence overlapping the 7th module position shown in the next step. by one double section. Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 17

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This should be the result. Along the existing fold- This joined double section is locked. Now turn lines, fold the right-hand flap down, thereby one left-hand flap over to the right, as if you are turning the page of a book. locking this joined double section.

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Along the existing fold-lines, fold the right-hand This double section is locked. Now turn one leftflap down, thereby locking this double section. hand flap over to the right, as if you are turning the page of a book.

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This should be the result. Now along the existing This double section is well locked. Now when fold-lines, fold the right-hand flap down, thereby one double section is remaining not locked at locking this double section. each side, fold the side flaps together, as if you are closing a book. Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 18

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This should be the result. Compress the folds Take the 8th module, the last one, positioning it together to secure the locks. Then loosen the at the left. Place the left-hand double section of paper to get ready to connect to the last module. the 7th module atop the 8th one, aligning paper along the folds and hence overlapping the 8th module by one double section.

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This should be the result. Gently compress the This should be the result. Along the existing foldmodules together, so that they adjust their position. lines, fold the right-hand flap down, thereby locking Then open the joined double section into the this joined double section. position shown in the next step.

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This joined double section is locked. Now turn Along the existing fold-lines, fold the right-hand one left-hand flap over to the right, as if you are flap down, thereby locking this double section. turning the page of a book. Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 19

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This double section is locked. Now turn one left- This should be the result. Now along the existing hand flap over to the right, as if you are turning fold-lines, fold the right-hand flap down, thereby locking this double section. the page of a book.

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This double section is well locked. Now when This should be the result. one double section is remaining not locked at each side, fold the side flaps together, as if you are closing a book. Compress the folds together to secure the locks. Then loosen the paper.

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Now we are ready to connect the first and last modules together, thereby completing the top lock of our Montgolfier balloon. In this point paper does remind of a sundress, isn’t it?

Compress the middle part of the current form, as shown, and bring the first and last modules together and around. Turn the whole construction around, so that the first and last modules look at you. Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 20

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This should be the result. Keeping the ‘tube’ of folds in the middle reasonably squeezed, release the not locked sections of the first and last modules.

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This should be the result. Now we are ready to apply the section of the last module (the red one) onto the section of the first module (the violet one). The marked place is shown enlarged in the following steps.

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81 Now we will connect the 1st and 8th modules together. Stretching the sections a bit, apply one double section of the 8th module (the red one, in our case) atop of the last section of the 1st module (the violet one).

Be sure all the folds coincide at the top and along the inner “tube” of folds - the double section of the red module should be atop of the last section of the violet module.

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This should be the result. Keep the inner “tube” Here is how the whole form looks like on this of locks squeezed. moment. You see that all the folds coincide along the inner “tube” of folds. Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 21

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Before working with the last lock, make sure that This should be the result. Along the existing foldthe layers of the overlapped sections are aligned lines, fold the right-hand flap down, thereby locking this joined double section. and correct it if necessary.

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This joined double section is locked. Now turn Now separate the flaps of this section, bringing the left-hand flap over to the right, closing this them into the position shown in the next step. section.

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Sink the corner in between the flaps, thereby This should be the result. Now the top part of the making the final lock of the top part of the Montgolfier balloon is completely locked. Montgolfier balloon. Consistently compress flaps together all around the lock to secure the folds of this lock. Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 22

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This should be the result. The form now Check the overlapping sections from this side resembles an open flower. Turn the model over. too, so that the folds of layers coincide in the middle part. Turn the model over.

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Push the inside lock down, so that the modules This should be the result. The top lock went inside are slightly opening. Place the other hand behind and the modules are closed. the form and help from the other side. Continue pushing, so that the inside lock is sinking deeper and the modules are starting to close.

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Top view. Now consistently examine each overlapping section, be sure that the layers and folds coincide at the middle part. Turn the model over into a vase-like position.

Working with the two overlapping sections, be sure that the layers and folds coincide all the way from the bottom to the top, inside & outside. Temporarily place the paper clip at the marked place to keep the overlapping sections aligned. Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 23

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This should be the result. Align the next overlapping sections and secure the connection of the overlapping sections atop with a paper clip.

Be sure that the overlapping layers are in the correct places inside. Align the next overlapping sections and secure the connection of the overlapping sections atop with a paper clip.

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Continue to work in the same way with the other This should be the result. Be sure that all the overlapping sections, checking that all the layers layers are in the correct places inside. are in the correct places inside & outside.

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Top view of the Montgolfier balloon. Check the overlapping sections from this side too, so that the folds of layers coincide. Turn the model over into a vase-like position.

Gently bring the upper part together, as shown. Note, the paper clips are places just temporarily to facilitate the process of the assembly. The paper clips will be consistently removed when we will lock the balloon’s bottom. Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 24

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This should be the result. Now all is ready to Check how the top part of the balloon looks now. make the final locking of the Montgolfier balloon Be sure that all the layers are in the correct places. Then return the model into a vase-like envelope. position.

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105 Separate the layers to start with a single-layered section. For instance, let’s start from the orange module as shown. The marked place is shown enlarged in the following steps.

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Working with the opened section, valley fold the top edge down along the existing fold-lines as shown. Note: remove paper clips consistently right before locking each particular overlapping section.

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This should be the result. Now turn one (double This should be the result. Along the existing foldlayered) left-hand flap over to the right, as if you lines, fold the right-hand flap down, thereby locking are turning the page of a book. this double section. (Remove the paper clip from the left-hand flap.) Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 25

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This should be the result. This double section is This should be the result. Along the existing foldlocked. Note that the vertical axis of the resulted lines, fold the right-hand flap down, thereby locking flap is not coinciding with the vertical axis of the this double section. whole model. Now turn one left-hand flap over to the right.

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This should be the result. Now turn one left-hand Along the existing fold-lines, fold the right-hand flap over to the right, as if you are turning the flap down, thereby locking this double section. This bottom lock is using the same technique as page of a book. the top lock of the Montgolfier balloon, so these actions should be familiar already.

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This should be the result. Now turn one (double Now along the existing fold-lines, fold the rightlayered) left-hand flap over to the right, as if you hand flap down, thereby locking this joined double are turning the page of a book. section. (Remove the paper clip from the next left-hand flap.) Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 26

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This should be the result. Now turn one left-hand Now along the existing fold-lines, fold the rightflap over to the right, as if you are turning the hand flap down, thereby locking this double section. page of a book.

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This should be the result. Continue to lock the A few more sections left to lock. Continue locking sections in the same way, consistently removing the sections in the same way until it comes to paper clips right before locking each particular the last triangular section. overlapping section.

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This should be the result. Separate the layers of This should be the result. Fold the corner down, the triangular flap into the position shown in the thereby locking the final section. next step. Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 27

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This should be the result. Now consistently The bottom part of the Montgolfier balloon is well examine each section and press/pinch their folds locked and forms the envelope skirt. flat to secure the locks.

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Close view of the balloon’s bottom.

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View of the balloon’s bottom.

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Side view.

The Montgolfier Balloon envelope from 8 modules is ready!

Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 28

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Attaching Line Loop with Paper Stopper

Take a piece of line (about 2 times longer that the height of the original rectangle used for the Montgolfier balloon module) and a little rectangular piece of paper about 1:2 or 1:3 in proportion, which in length is a bit less than the balloon diameter. Make the paper stopper according to diagrams shown in the article “One-Piece Hot Air Balloon (Outside Top Lock)”, article page 16 (book page 67).

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Get your Montgolfier balloon ready, turned to you Insert the paper stopper into the top opening of by a top opening, and take the paper stopper as the balloon. Be sure that the knot is tied up well and not sliding off the paper stopper. Push the well. end of the paper stopper deeper into the balloon, but keep the line loop outside.

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Pull out the line loop as far as it will go until you This should be the result. The line loop is attached see the paper stopper is stopped inside. to the Montgolfier balloon. Now you can hang the balloon while you fold the round basket. Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 29

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Round Basket by Yuri Shumakov

The round basket folds from a square with a side that is 3/4 of the short side of the rectangle used for the Montgolfier balloon module. It is advisable first to fold this model from a reasonably big square, for instance, 6-inch Montgolfier (15 cm) square of paper to comprehend the process of folding. When you mastered the Module folding of this basket then fold it in a needed size for your Montgolfier balloon. If using two-color paper, begin with colored side up. Valley fold the opposite corners together, in turn, to make the diagonal fold lines, and open them up. Then, turn the paper over. Valley fold the opposite sides together in both directions, 1 and open them up.

Round Basket

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Press the midpoint of the square, until the sides pop up. Bring the sides together and down towards you. Press the top down neatly into a square, thereby completing the shape that, in origami, is called the preliminary base.

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4 This should be the result. Valley fold the upper sloping edges over, so they lie along the middle fold-line. Press them flat and unfold them. Repeat behind.

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Inside reverse fold the rightValley fold the right-hand and left-hand points into the flap over to the left, as model along the fold-lines though turning the page of made in step 4. Repeat behind. a book. Repeat behind. Montgolfier Balloon (8-Module Envelope): Round Basket © 2012 Yuri Shumakov - page 30

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Working with the front right-hand flap, valley fold it dividing the marked sector in half, so that the dots coincide. Press the fold flat and unfold it. 9

7 This should be the result. Separate the front fraps at sides as shows, and working with them, valley fold the lower sloping edges over, so they lie along the vertical middle line. Press them flat and unfold them.

Repeat steps 8 and 9 for the left-hand flap as in mirror.

Divide the side sector of the front right-hand flap by valley folding. Press the fold flat and unfold it.

10 11 This should be the result. Repeat steps 7 to 10 behind.

This should be the result. Valley fold one right-hand flap over to the left, as though turning the page of a book. Repeat behind.

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Valley fold the 2 right-hand flaps over to the left, as though turning the page of a book. Repeat behind.

13 This should be the result. Now repeat steps 7 to 11.

Montgolfier Balloon (8-Module Envelope): Round Basket © 2012 Yuri Shumakov - page 31

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Inside reverse fold the side points along the marked fold-lines, bringing them into the position shown in the next step.

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This should be the result. Being guided by the internal layers marked by the dotted lines, valley fold the front flap up over their intersection marked by the dot.

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This should be the result. Now separate the front layer a bit as shown. 18 Now unfold the layers of paper that were originally folded in step 16.

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This should be the result. Unfold the flap.

This should be the result. Now repeat steps 15 to 19 behind and then consistently for the two remaining sides. 20

After that, unfold the 21 paper completely. Flatten the paper. Montgolfier Balloon (8-Module Envelope): Round Basket © 2012 Yuri Shumakov - page 32

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22 Carefully examine the folds and reform consistently the ‘mountain’ folds and then ‘valley’ fold-lines as shown. Then turn the paper over.

This should be the result. Forming the folds now is becoming rather 3D, so the following folding process is shown in a photo-diagram style. The marked place is shown enlarged in the following steps.

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Montgolfier Balloon (8-Module Envelope): Round Basket © 2012 Yuri Shumakov - page 33

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Along the existing fold-lines, fold the right-hand This should be the result. Valley fold the upper sloping edge over to the left as shown. edge on the front flap along the existing (limited) fold-line.

26 This should be the result.

28 This should be the result.

27 Valley fold the left-hand edge of the front flap over to the right along the existing fold-line.

29 One more time, valley fold the left-hand edge of the front flap over to the right along the existing fold-lines, at the same time closing the wall of the future basket…

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In the process… Continue folding the flap and This should be the result. closing the wall of the future basket as shown in the next step.

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Pinch the edge of the folded flap over the edge Check it out how it looks from the other side. Then return the paper into the initial position. of the wall of the basket as shown.

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Now we will form the left-hand side in the same This should be the result. Valley fold the upper way (but as in mirror) as shown in steps 24 to edge on the front flap along the existing (limited) 33. So, along the existing fold-lines, fold the left- fold-line. hand sloping edge over to the right as shown. Montgolfier Balloon (8-Module Envelope): Round Basket © 2012 Yuri Shumakov - page 35

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37

This should be the result. Valley fold the right- One more time, valley fold the right-hand edge hand edge of the front flap over to the left along of the front flap over to the left along the existing fold-lines, at the same time closing the wall of the existing fold-line. the future basket…

38

39

In the process… Continue folding the flap and This should be the result. closing the wall of the future basket as shown in the next step.

40

41

Pinch the edge of the folded flap over the edge This should be the result. Turn the model over, of the wall of the basket as shown. bringing it into the position, shown in the next step. Montgolfier Balloon (8-Module Envelope): Round Basket © 2012 Yuri Shumakov - page 36

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42

43

Valley fold the flap down as far as it will go, so This should be the result. Valley fold the rightthat the fold goes along the upper edge of the hand sloping edge as shown, making the limited fold. basket.

44

45

This should be the result. Unfold the flap. Now valley fold the left-hand sloping edge as shown, also making the limited fold.

46

47

This should be the result. Unfold the flap. Now along the existing fold-lines pinch the sides of the flap on the middle.

Montgolfier Balloon (8-Module Envelope): Round Basket © 2012 Yuri Shumakov - page 37

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48

49

This should be the result. Now fold the narrow This should be the result. One of the future vertical flap to the right and to the left to reinforce the upright supports of the basket is ready. Now let’s start to form the next one. Turn the paper into vertical folds. the position shown in the next step.

50

51

Along the existing fold-lines, fold the right-hand Now consistently repeat steps 25 to 49 to form sloping edge over to the left as shown, thereby the next upright support of the basket. bringing the paper into the position shown in the next step.

52

53

The two supports of the basket are ready! In the same way form the two remaining supports of the basket.

Montgolfier Balloon (8-Module Envelope): Round Basket © 2012 Yuri Shumakov - page 38

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55

54

Lift up the supports into the upright position. This should be the result.

56 Here is the completed round basket for the Montgolfier balloon!

As we mentioned earlier, it is advisable first to fold this model from a reasonably big square, for instance, 6-inch (15 cm) square of paper to comprehend the process of folding. When you mastered the folding of this basket then fold it in a needed size for your Montgolfier balloon. Practical Tip: In case you need to fold a very small basket for your Montgolfier balloon, we suggest you the following: when shaped each support as shown in steps step 24 to 49, then do unfold the support before forming the next one (so that there will be room to form the next support since the very small size of paper is used). When all the supports are formed and unfolded, start to shape them again - this time it will be easy because all the folds are formed already. Happy folding!

Montgolfier Balloon (8-Module Envelope): Round Basket © 2012 Yuri Shumakov - page 39

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Attaching Round Basket to Balloon Envelope

1

2

Get your Montgolfier balloon envelope (with a Take the Montgolfier balloon by the bottom lock piece of line attached to it) and the round basket turned toward you. Open one of the flaps of the balloon skirt as shown. ready.

3

4

Note that the opened flap has a narrow opening. Take the basket as shown. Fold the tip of the front upright support in the same direction as that narrow opening in the flap, because this tip will be inserted into this opening later.

5

This should be the result. Repeat step 3 for each of the rest upright supports. Keep the size of the tip and the direction of folding the same for each upright support.

6

Insert the tip of the respective upright support This should be the result. Position the tip in the into the narrow opening of the opened flap as far middle of the flap. as it will go. Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 40

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7

8

Now lock the flap, returning it into the original This should be the result. Now the tip of the position, thereby locking the upright support of upright support is locked in the balloon skirt. Next, turn the balloon around to get access to the basket in it. the opposite side.

10

9

Open the middle flap of the balloon skirt as shown. Insert the tip of the respective upright support into the narrow opening of the opened flap.

12

11

Close the flap, returning it into the original position, This should be the result. Next, turn the balloon thereby locking the upright support of the basket around to work with the next upright support of in it. the basket, for instance at the left-hand side. Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 41

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13

14

Open the respective flap of the balloon skirt as Close the flap, returning it into the original position, shown and insert the tip of the upright support thereby locking the upright support of the basket into the narrow opening of the opened flap. in it.

15

16

This should be the result. Now the tip of the upright support is locked in the balloon skirt. Next, turn the balloon around to get access to the opposite side.

17

Attach the last upright support to the respective flap of the balloon skirt in the same way. When it’s done, you may adjust the position of the basket, moving the upright supports in the respective flaps up and down as desired.

18

The round basket is attached to the Montgolfier Here is the completed Montgolfier balloon with balloon envelope! the 8-module envelope!

Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 42

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19

Congratulation!!! Your origami Montgolfier balloon is ready for take off!

20 Here is the completed Montgolfier balloon with the 8-module envelope!

You may print out the special colour pattern presented in the next article to get such a beautiful Montgolfier Balloon!

Montgolfier Balloon (8-Module Envelope) © 2012 Yuri Shumakov - page 43

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Printable Colour Pattern for Montgolfier Balloon (8-Module Envelope) by Yuri and Katrin Shumakov

Here is presented the original printable colour pattern especially designed for the Montgolfier Balloon (8-Module Envelope).

The design is inspired by the Montgolfier brothers’ historic balloon that was blue and decorated with golden flourishes, red drapery, signs of the zodiac, and suns. So for this pattern we kept the celestial reference and the main colour scheme with the electric blue, regal red, deep yellow and yellow. There are 2 pattern types – one with the stars and the other with the sun. You will need to print 4 sheets of each type, so that you have 8 modules – 4 with the suns and 4 with the stars. Print the next 2 pages with the pattern on white sheets of Letter of A4 format. Set 4 copies for each page. Cut out the rectangles. Fold the Montgolfier Balloon, according the diagrams, presented in the article “Montgolfier Balloon (8-Module Envelope)”, book pages 110-152.

Round Basket

Overlap by 1 section

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Overlap by 1 section

The round basket folds from a square with a side that is 3/4 of the short side of the rectangle used for the Montgolfier balloon module. Take an appropriate colour from the main colour scheme of the pattern – electric blue, regal red, deep yellow or yellow, as you wish. Have fun and happy folding!

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Montgolfier Balloon (4-Module Envelope) by Yuri Shumakov

This Montgolfier balloon consists of a modular round balloon envelope and a 1-piece round basket. The Montgolfier envelope folds from 4 modules, each folded from a square. The modules overlap by 2 double sections, so the final Montgolfier balloon has 24 double sections, i.e. 6 sections per module. The round basket folds from a square with a side that is 3/8 of the side of the square used for the Montgolfier module. Suggested paper: regular origami paper, colour copy paper. Also you may experiment with any paper that is sturdy, thin, with fine finish. You even can use craft paper or thicker art paper for a large scale model. Suggested sizes: It’s preferable to use large paper to learn this model. In case of origami paper, use 10-inch (25 cm) squares for modules and respectively a 3-3/4-inch (9.4 cm) square for a basket. In this case the finished model will be about 7-1/2 inches (18.5 cm) high. In case of paper of Letter or A4 format, use its width to maximum. Letter format: use 8-1/2- inch squares for balloon modules and a 3-1/4-inch square for a basket to receive the finished model about 6-1/2 inches high. A4: use 21-cm squares for balloon modules and an 8-cm square for a basket to receive the finished model about 16 cm high. The finished balloon envelope will be measuring – a bit more than 2/3 of the side of the initial square used for the Montgolfier module, as pictured.

Montgolfier Modules

Basket The finished model with the basket attached will be measuring – about 3/4 of the side of the initial square used for the Montgolfier module, as pictured. To hang such origami Montgolfier Balloon you will need a piece of line and a little rectangular piece of paper about 1:2 or 1:3 in proportion, which in length is a bit less than the balloon diameter. Montgolfier Balloon (4-Module Envelope) © 2012 Yuri Shumakov - page 1

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Montgolfier Module (from square)

The principle of folding the Montgolfier module from the square is the same as for the Montgolfier module from the 1:2 rectangle shown in the article “Montgolfier Balloon (8-Module Envelope)”, article pages 3 - 6 (book pages 112 - 115). Use a square. If using two-color paper, begin with Now fold each vertical section in the same colored side up. way as shown in steps 1 to 25 of the article Valley fold the square in half from side to side, “Montgolfier Balloon (8-Module Envelope)”, 1 press it flat and unfold it. Turn the paper over. article pages 3 - 6 (book pages 112 - 115). 1

This should be the result. Check out all the ‘mountain’ and ‘valley” lines and then carefully pleat the paper according these lines.

25

Here is the profile of the resulted pleated paper. 26

Have 4 Montgolfier modules folded and ready for the assembly.

Round Basket & Paper Stopper

The round basket folds along diagrams shown in the article “Montgolfier Balloon (8-Module Envelope)”, article pages 30 – 39 (book pages 139 - 148). Use a square with a side that is 3/8 of the side of the square used for the Montgolfier module. Make the paper stopper according to diagrams shown in the article “One-Piece Hot Air Balloon (Outside Top Lock)”, article page 16 (book page 67). Montgolfier Balloon (4-Module Envelope) © 2012 Yuri Shumakov - page 2

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Assembly

The principle of Montgolfier assembling is the same as shown in the article “Montgolfier Balloon (8-Module Envelope)”, article pages 7 - 29 (book pages 116 - 138). Only in this case, the balloon envelope consists of just 4 modules folded from squares and they overlap by 2 double sections. So prepare the Montgolfier modules and diligently follow the assembly instructions shown in the afore-mentioned article.

Overlap by 2 double sections

During the envelope assembly you will need 4 paper clips (one per module) to temporarily keep the overlapping sections well aligned before they are locked at the bottom of the balloon.

Attach the line loop with the paper stopper and then the round basket in the same way as shown in the afore-mentioned article, article pages 40 - 42 (book pages 149 - 151).

Here is the completed Montgolfier balloon with the 4-module envelope. Montgolfier Balloon (4-Module Envelope) © 2012 Yuri Shumakov - page 3

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Montgolfier Balloon (1-Piece Envelope) by Yuri Shumakov

This Montgolfier balloon consists of a 1-piece round balloon envelope and a 1-piece round basket. The Montgolfier envelope folds from a rectangle, 1:3 in proportion. The envelope overlaps by 1 double section, so the final Montgolfier balloon has 23 double sections. The round basket folds from a square with a side that is 3/8 of the short side of the rectangle used for the Montgolfier envelope. Suggested paper: Chiyogami paper, gift wrapping paper (not too thin), even holographic foil paper. Many fine Japanese papers can be used. You may experiment with any paper that is sturdy, thin, with fine finish. You even can use craft paper or thicker art paper for a large scale model. Suggested sizes: Use a large piece of paper. For instance, use a rectangle, 10 x 30 inches (25 x 75 cm) in size and a 3-3/4 inch (9.4 cm) square for the round basket, to get the finished model about 7-1/2 inches (19 cm) high. For the silver Montgolfier balloon shown in this article we used a rectangle 7-1/2 x 22-1/2 inches (19 x 57 cm) in size cut from a 7 1/2 inches (19 cm) wide roll of Gift Wrap Holographic Foil paper, which is quite handy when you need long rectangles. For the round basket we used about a 3-inch (7 cm) square of paper. This particular balloon in a combination with the basket turned 6 inches (15 cm) high. To hang such origami Montgolfier Balloon you will need a piece of line and a little rectangular piece of paper about 1:2 or 1:3 in proportion, which in length is a bit less than the balloon diameter.

The finished balloon envelope will be measuring – a bit more than 2/3 of the short side of the initial rectangle used for the Montgolfier envelope, as pictured.

Montgolfier Envelope Basket

The finished model with the basket attached will be measuring – about 3/4 of the short side of the initial rectangle used for the Montgolfier envelope, as pictured. Montgolfier Balloon (1-Piece Envelope) © 2012 Yuri Shumakov - page 1

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Montgolfier Envelope The principle of folding the Montgolfier Envelope from the 1:3 rectangle is the same as for the Montgolfier module from the 1:2 rectangle shown in the article “Montgolfier Balloon (8-Module Envelope)”, article pages 3 - 6 (book pages 112 - 115). If using two-color paper, begin with colored side up.

2

1

Valley fold the rectangle on 3 equal sections, marking the 3 squares, press the folds flat and unfold them.

Valley fold and unfold each square section in half, thereby dividing the rectangle into 6 vertical sections. Then, turn the paper over.

Now fold each vertical section in the same way as shown in steps 1 to 25 of the article “Montgolfier Balloon (8-Module Envelope)”, article pages 3 - 6 (book pages 112 - 115).

Montgolfier Balloon (1-Piece Envelope) © 2012 Yuri Shumakov - page 2

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1

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25

This should be the result. Check out all the ‘mountain’ and ‘valley” lines and then carefully pleat the paper according these lines.

Overlap by 1 double section

26

Round Basket & Paper Stopper The round basket folds along diagrams shown in the article “Montgolfier Balloon (8-Module Envelope)”, article pages 30 – 39 (book pages 139 - 148). Use a square with a side that is 3/8 of the side of the square used for the Montgolfier module.

Here is the profile of the resulted pleated paper.

Make the paper stopper according to diagrams shown in the article “One-Piece Hot Air Balloon (Outside Top Lock)”, article page 16 (book page 67).

Montgolfier Balloon (1-Piece Envelope) © 2012 Yuri Shumakov - page 3

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Assembly The principle of Montgolfier assembling is the same as shown in the article “Montgolfier Balloon (8-Module Envelope)”, article pages 7 - 29 (book pages 116 - 138). Only in this case, the balloon envelope folds from a single rectangle, which overlaps by 1 double section. So diligently follow the assembly instructions shown in the afore-mentioned article, omitting the steps where modules connect together, since you are using just one piece.

Attach the line loop with the paper stopper and the round basket in the same way as shown in the afore-mentioned article.

Here is the completed Montgolfier balloon with the 1-piece envelope!

Montgolfier Balloon (1-Piece Envelope) © 2012 Yuri Shumakov - page 4

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Enjoy your origami balloon adventure! Experiment with colours and shapes to get fabulous origami hot air balloons. With the designs presented in this book you can fold the whole fleet of origami balloons!

Have a great Oriland Balloon Ride! Happy folding!

ORILAND What Origami Can Be! Oriland Balloon Ride. Origami Sky Series. Copyright©2012 by Yuri and Katrin Shumakov. All rights reserved. No part of this book may be used or reproduced in any manner whatsoever without written permission except in the case of brief quotations embodied in critical articles and reviews. For information, address [email protected] This book is available exclusively in electronic format as a portable document format (PDF) file. The product can be purchased exclusively through www.oriland.com Any other ways of obtaining this book are considered illegal. NOTE: The diagrams from this book may be printed out only for personal use, and may not be redistributed or republished in any way without the express written consent of the creator. For information, address [email protected]

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About Authors

Katrin and Yuri Shumakov are internationally recognized professional origami artists. First introduced to origami in France in 1989, they developed this art in a heretofore unseen way. Residents of Toronto, Canada and authors of many origami books, they share their art with the world. They created the fantastic Oriland world, which consists of amazing creations: goblins and wizards, castles of magical wonder, dragons, princesses, trees and flowers, sailing ships and sea creatures, dinosaur skeletons and so much more including elegant floral arrangements they call Oribana. Their origami designs have been exhibited in different countries across the globe. Psychologists by education, their Ph.D scientific work showed how origami helps the development of children: creates conditions of intensive interaction of the brain’s hemispheres and effectively allows development of motor skills of both hands, intellectual and creative abilities. Yuri

and

Katrin Shumakov have done Internet projects including this multiple award winning Oriland. com, acknowledged as a high quality creative, educational and fun website for children and adults. They suggest that Origami is entertainment for the Soul, gymnastics for the Mind and training for the Hands. Enjoy ORILAND & see what origami can be!

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