CompuServe Messages

Dear Experts, I feel really silly asking this question but here goes !! How do you draw a three dimensional path ? I can create 2 dimensional ones (using the 2-d shaper) but do not know how to create something complex in 3 dimensions. For example, say I wanted to draw a Trumpet, how would I create the path of the tube that starts from the Trumpet's mouthpiece and ends up at the Trumpet's bell end ? Thanks in anticipation. Jez