Page 16 Modeling a Mountain Bike

Select the curve shown below, and go ‘Surface/Extrude’.

In the options shown in the command panel, type C for Cap=Yes, then type 0.15 following by hitting Enter to finish the process. Now you want round edges on this surface. Go to ‘Surface/Fillet’, and in the command panel type R, then enter a value of 0.03. When done, select one of the cap surfaces, then the extruded surface.

(In this figure, all other surfaces are hidden to improve visibility. If you need to do the same, select the surfaces you recently created, then go ‘Edit/Select/Invert’ and finally ‘Edit/Visibility/Hide’.)

Repeat filleting with the other capped surface and the extruded one to make rounded edges on the other side as well.