Quote Originally Posted by Mike F View Post
Have you looked at Gearotic, a program being developed by Art (founder of Mach). He uses similar methods for cutting spur, helical and bevel gears and includes some pulleys too. Take a look http://gearotic.com/, it's a work of art - pun intentional :) There's also an excellent forum.
Yes I've seen that, it does look good. Only problem is it costs money!

I guess I could add gears to this program...start with simple involute spur gears and work up.