4 answers

• 
  Reidh 9 months ago

  FreeCAD is probably what you want as far as pure CAD goes. Blender 3D or Blender 2.6.3 is a very good tween package.

• 
  Jose Guevarra 11 months ago

  I use Solidworks but, a promising free CAD app is freecad

  http://sourceforge.net/projects/free-cad/

• 
  Rodrigo 8 months ago

  There is also http://librecad.org/ it's only 2D though. A shop that I work with now uses that instead of AutoCAD.

  I use FreeCAD.

• 
  Andrew about 1 month ago

  Yes, I am using freecad on UBUNTU