AutoCAD 2002 Exercise Guide Ch2

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EXERCISE BOOK for AUTOCAD 2002 Contents

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Basic Commands Basic Drawing & Editing Commands Drawing Tools (OSNAP & OTRACK) Dimensioning & Tolerancing More Drawing & Editing Commands Layer & Block Commands Producing Drawings – Multiview, Sectional, Auxilliary & Assembly Isometric Drawings 3D in AutoCAD Using Layout & Documentation

Chapter 

Basic Drawing & Editing Commands

Terminology Click or Left Click: Press (once) and release left mouse button (LMB). Right Click: Press and release right mouse button (RMB). Double Click: Commonly referred to clicking LMB twice. Click and drag: Press (not release) left mouse button, and move the mouse. The left mouse button is released to finish the command. Menu:

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AutoCAD 2002 Exercise Book

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Basic Drawing & Editing Commands

2.1 Creating text using TEXT and MTEXT command

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Creating single line text. 1) Start AutoCAD 2002. Create new drawing. You could use the default drawing limits or set to 400 by 300. Activate the grid. 2) Select from menu Draw > Text > Single line text Or type text in the command prompt box. Current text height, 50 3) Enter the values accordingly: Change text height to 10

Start point (100,100)

Zero rotation (horizontal) Text – first line Press {enter} to end the command

Text – second line

Start point (100,100) Height: 10

(0,0)

Figure 2-1 4) You should obtain the text similar to Figure 2-1. 

Produce the following text, as shown in Figure 2-2 below.

Figure 2-2 -18-

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2002  Adzly Anuar  Dept. of Mechanical Engineering  Universiti Tenaga Nasional

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

AutoCAD 2002 Exercise Book 

Creating multiline text (MTEXT). 1) Click on multiline text icon, or type in MTEXT in command prompt area, or select from menu Draw > Text > Multiline Text… 2) Specify first corner: 40,150 Note: 3) Specify opposite corner: 140,200 Instead of typing the coordinates, mouse click could be used to specify the corners. Opposite corner (140,200)

1st corner (40,150)

Figure 2-3 4) Multiline Text Editor window will be shown. (Figure 2-4) 5) Type in the text; DEPARTMENT OF MECHANICAL ENGINEERING UNIVERSITI TENAGA NASIONAL You should notice that the words are adjusted (pushed to the next line) according to the width of the box (in this case, width is 100). All the words are drawn inside the box, and considered as one element.

Figure 2-4 6) Click button OK. You should obtain text similar to Figure 2-5. (40,200)

(140,200)

Figure 2-5 7) The size of the text box can be changed. Click on the text. Click on the blue square at the lower right hand corner. Move the mouse. Try clicking on other corners and move the mouse.

(a) Click on the text

(b) Click on the corner, move the mouse Figure 2-6 -19-

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2002  Adzly Anuar  Dept. of Mechanical Engineering  Universiti Tenaga Nasional

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AutoCAD 2002 Exercise Book Exercise: Create the text shown in Figure 2-7 using TEXT and/or MTEXT command.

Figure 2-7

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2002  Adzly Anuar  Dept. of Mechanical Engineering  Universiti Tenaga Nasional

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

AutoCAD 2002 Exercise Book

2.2 ERASE, MOVE, COPY and SCALE commands 

Draw the following object. Set the drawing limits to 300 by 250. Activate Grid and Snap. Set the grid spacing to be 10 and snap spacing to be 5. Do not dimension and draw the center/hidden lines at this moment. Save the drawing as Exe2_2.dwg

Figure 2-8 

Draw the object as shown in Figure 2-9. The location is not important at this moment, you could draw anywhere on the screen. You may zoom in to make the view bigger.

(6) (5) (4) (3)

(7)

(2) (1)

(8)

Figure 2-9 -21-

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2002  Adzly Anuar  Dept. of Mechanical Engineering  Universiti Tenaga Nasional

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

AutoCAD 2002 Exercise Book 1) 2) 3) 4)

Draw Draw Draw Draw

the 1st arc. Start point–(3); Centre point–(2); End point-(1) straight lines. From point (3) to (4) to (5) to (6). another straight line. From point (1) to (8). the 2nd arc. Start point-(8); Centre-(7); End-(6)

Note: You may encounter some problems when specifying the coordinates using mouse. The cursor may ‘jump’ to a certain point on the object. This may be caused by OSNAP. Deactivate this function by clicking the OSNAP button at the bottom.

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Moving the object 1) Zoom all. Select all entities. (Figure 2-10) 2) Select from menu: Modify>Move or type in command prompt area; move {enter} 3) Specify base point or displacement: click on the lower left corner of the object (as shown in Fig. 2-11). 4) Specify second point of displacement: 40,120 5) The object will be moved to a new location. Copying the object 1) Select from menu: Modify>Copy or type in copy. 2) Select all entities. After selecting, press {enter} key to proceed. 3) Specify base point or displacement: click on the lower left corner of the object (as shown in Fig. 2-11). 4) Specify second point of displacement: @60,0 5) A copy of the object will be drawn on the right side. (You should remember to save your drawing regularly)

Figure 2-11

Figure 2-12

Drawing the outer part of the object 1) Draw the left arc. Start point (50,160), 2nd point (25,135), end point (50,110). 2) Draw the straight line: From (20,160) to (140,160); and from (50,110) to (140,110). 3) Draw the right arc. Start point (140,110), 2nd point (165,135), end point (140,160). 4) You should obtain the object similar to Figure 2-13.

Figure 2-13

Drawing the side view of the object 1) Draw the construction lines (refer to Figure 2-15). Change line colour to blue (or any other colour you like). This is done for easy identification of the lines. 2) Draw the outer lines. (200,160) (270,160) (270,110) (200,110) 3) Load hidden lines. From menu: Format > Linetype. In Linetype Manager -22-

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Figure 2-10

Figure 2-14

2002  Adzly Anuar  Dept. of Mechanical Engineering  Universiti Tenaga Nasional

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

AutoCAD 2002 Exercise Book

4) 5) 6) 7)

window, click on Load… button. Click on the linetype ACAD_ISO02W100 (the first in the list). Then click OK button. In Linetype Manager window, click OK button. Select hidden line (ACAD_ISO02W100) from the list. Draw straight lines for the hidden details of the object. You should obtain the object similar to Figure 2-15. Erase all construction lines. (click on the lines and press {Delete} key)

Construction lines

Hidden lines

Figure 2-15 

Copying frame into the drawing 1) Open the files containing the frame. Do not close your current drawing. 2) Copy the frame entities. Select all entities. Click copy button, or from menu Edit > Copy or pressing Ctrl+C. Switch to the drawing for this exercise by selecting the file name (exe2_2.dwg) from Windows menu. You may find the frame is too small for the object. Note: 3) Resizing the frame. You must always copy the a. Switch back to the frame window. Select all frame into the object you entities. have drawn, NOT object into b. Select from menu Modify > Scale, or type frame. The frame may need in scale {enter}. to be resized. You should c. Specify base point: Click on the lower left never resize the object so corner of the frame. (0,0) that it will fit inside the frame. d. Specify scale factor: 10 {Enter} e. The frame is enlarged, and it may be too big for the screen. You could Zoom All to resize the view. 4) Copying the resized frame. a. From menu Edit > Select All. All the entities will be highlighted. b. Click on the copy button. c. Switch the window again to exe2_2.dwg d. Click on the paste button. e. The frame will appear and you could move it around using the mouse. f. Align properly so that the object is approximately in the center of the frame. g. Left click. The drawing should be as shown in Figure 2-8.

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Writing text on drawing 1) Write in the text: FRONT VIEW and SIDE VIEW as shown in Figure 2-8. 2) Complete the drawing by writing all your particulars in the title block.

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Plot/save your drawing

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2002  Adzly Anuar  Dept. of Mechanical Engineering  Universiti Tenaga Nasional