Shaft Clamp

 To create a shaft clamp:

1. Choose View | Top.
   
2. Draw the shape shown by the bold line.
   
3. Set Z as shown.
   
4. Choose View | Back.
   
5. Draw a circle for the retaining screw.
   
6. Choose Line | Machine | Thread and select the desired thread.
   
7. Set Z to slightly more than the length of the screw.
   
8. Create the outermost circle for the unthreaded bore using a diameter slightly more than the screw size.
   
9. Set Z to the depth of the unthreaded portion.
10. Choose View | Top.
    
11. Verify that the light projection lines are as shown.
12. Choose View | 3D.