2D/3D CAD Programs

An amazing commercial 2D/3D CAD tool, Solidworks
http://www.solidworks.com/sw/products/3d-cad/solidworks-standard.htm

http://opensourceecology.org/wiki/List_of_CAD_Programs

http://www.freecadweb.org/

• http://www.freecadweb.org/wiki/?title=Screenshots

• https://github.com/FreeCAD/FreeCAD