Transmission Belt

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 Transmission Belt Open a new part with model units set to millimeters. Go to: File > New > Part

Select the three planes in the feature tree and make them visible by clicking on the glasses.

The Front, Top, and Right planes appear, and the pointer changes to As you move the pointer over a plane, the border of the plane is highlighted.

Select the Front Plane and create a sketch by clicking on the 2D sketch icon The display changes so the Front plane faces you. The Sketch toolbar commands appear in the CommandManager.

A sketch opens on the Front plane. Draw a circle Click at the circle icon

on the Sketch toolbar.

The Circle PropertyManager opens in the left pane. Move the pointer over the origin. The pointer changes to

.

This indicates a coincident relation between the center of the circle and the origin. Click to place the center point on the origin. Move the mouse and notice a preview of the circle dynamically follows the pointer. Release the mouse and click

in the PropertyManager to finish the circle. | Page

Draw another circle at the same way as the last one The size of your sketch entities does not need to be exact. For example, this circle does not need to be 61mm. You later add dimensions to specify the size of sketch entities.

Draw two straight lines To start a line click at the line icon

on the Sketch toolbar.

Click to place the starting point of the line. Move the pointer. Notice that it displays the current dimensions of the line. Draw the two lines as shown in the picture. The size of your sketch entities does not need to be exact.

At constraints at the sketch Select one of the circles and one line and add a tangent relation by clicking on the tangent icon.

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Repeat this action for the other sides of the lines and circles as shown in the picture.

Trim the lines you don’t need Go to Tools > Sketch Tools and select Trim or select t he Trim icon in the toolbar Select Powertrim and delete all the lines you don’t need by dragging the cursor over the lines you want to delete. Delete the inside of the circles as well. Provide the sketch with the dimensions and constraints as shown in the picture. Select a circle or line and click at the dimensions button Click above the line to place the dimension. Enter the dimension and click OK Be aware that R60 and R70 is equal to Ø120 and Ø140.

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NOTE: Because a basic knowledge of SolidWorks is required to participate the tutorials of SolidWorksModel we will left all the small steps in the 2D sketch environment away in the future. We do everything we can to keep the SolidWorksModel tutorials as clear and bright as possible. If we describe every click as above then the tutorial would be very thick and dull. To prevent this, we’ve decided that SolidWorksModel participants should be capable enough to draw a simple 2d sketch with an example picture of SolidWorksModel like the three examples below.

If you have problems with the 2D sketch features we recommend you to practice the basics of SolidWorks 2D sketching first. Here you could find some basic SolidWorks tutorials: Go to: Help > SolidWorks Tutorials > Getting started > Select a lesson You could also practice some excellent basic tutorials of SolidWorks itself which could help you to discover the basics of SolidWorks. You could download those tutorials here: Tutorial 1  –  Create an Axis http://blogs.solidworks.com/files/solidworks_tutorial01_axis_english_08_lr-2.pdf Tutorial 2  –  Create a Picture Holder http://blogs.solidworks.com/files/solidworks_tutorial02_pictureholder_english_08_lr2.pdf Tutorial 3  –  Create a Magnetic Block http://blogs.solidworks.com/files/solidworks_tutorial03_magneticblock_english_08_lr1.pdf Tutorial 4  –  Create a Candlestick http://blogs.solidworks.com/files/solidworks_tutorial04_candlesticks_english_08_lr.pdf | Page

Transform the 2D sketch into a 3D object Extrude the sketch

Go to: Insert > Boss/Base > Extrude Direction

: Blind

Change

into 88 mm

Select the Thin Feature option

Direction

: One-Direction

Change

into: 3.5 mm

The yellow selection shows the direction of the extrusion. If you want to change the direction, click on the red arrow in the Thin Feature toolbar.

Click OK

NOTE: When you encounter problems with the 3D sketch features, we recommend you to use the SolidWorks files of SolidWorksModel as an example and reference file. | Page

Create a fillet

Select the four green edges as shown in the picture. SolidWorks automatically selects the other edges of these corners. Those are marked in yellow. Go to: Insert > Features > Fillet/Round

> 1 mm

Click OK

Change the color of the part: Right click on the part > Body properties > Change color > Select the color you like Click OK Hide

all planes and sketches.

Save

the file with the following name: Transmission Belt

Congratulations, you just finished the Transmission Belt! | Page