Quote Originally Posted by CarterTG View Post
Since the OP mentioned being on the GrabCad site, I'm surprised he didn't stumble across BoltGen. It's a free plug-in for Rhino.
I saw it. I don't have Rhino, or Solidworks or other software that costs a ton. :P *looks up Rhino prices* Heyyyy! Why is it half the price for Macintosh!

Looks like it's OpenSCAD for me.