I've struggled with eMachineshop software as well, and found it extremely clumsy. I was able to get my design close to what I wanted, then hit a road block.

I found an "approved Emachineshop design consultant" that is quite good with that software who helped me get over the final hurdle I was having, then fabricated the first proto-type article for me on his stereo lithography rapid proto-type equipment. He was very helpful and then only charged me $50 for the first article.

His website is:

http://www.spodaco.com/



I wonder if anyone here might have enough familiarity with the emachineshop's
software that they might help me.

The part I've been trying to draw and order is a ~4 inch OD ring shape with
a"V" groove similar to a pulley, but with no hub.[/i][/color]