Fig. 2

Fig. 3

Fig. 4

 


Draw a line 100mm long passing through the axis of the workplane.

If necessary use the constraint tool to determine the length of the line. However the length is not critical as it represents an axis of rotation and will not be used to form the profile of the tyre. Fig. 2

 

Right click on the frontal option from the Workplanes menu to create another sketch and click OK to accept the default name of sketch2

Draw the tyre profile shown in Fig. 3

Again the exact shape and size of the tyre profile is not critical as all subsequent parts are to be drawn in context . However, the sizes shown here are suitable for the final assembly.

Use the revolve feature from the features menu or click the revolve button,to produce the tyre.

Enter sketch1 as the axis and sketch2 as the profile. Enter 360 as the angle of rotation.

 

If the inputs are correct, the tyre in Fig. 4 should be produced. The colour of the tyre was changed to grey by selecting the part and setting the colour under the Assembly menu.

Save the tyre, giving it a name of your choice.

 

 

 

 

Adding The Wheel in Context

Under the Assembly menu, select Add new part in context.

This will allow you to model a new part whilst keeping the original component on the screen. By adopting this method the wheel can be drawn to fit the tyre exactly without changing the tyre model.

The original component, in this case the tyre will appear as a ghost image on the screen.