I use CADKey/KeyCreator. No way I could afford AutoCAD or SolidWorks on my own.
Speaking of which, I finally broke down and bought a 3-D printer...
16 posted on 12/17/2013 8:39:39 AM PST by null and void
(I'm betting on an Obama Trifecta: A Nobel Peace Prize, an Impeachment, AND a War Crimes Trial...)