List of Free Software CAD Resources
Sharing is very appreciated.
Open Source Architecture Community
Your own 3D parametric modeler
The infamous 3D animation modeler, can be used in workflow with CADs (see OSArch)
Use Blender for CAD Purposes (see OSArch)
Lego, Bricks, and GNU GPL
@FreeCAD (the libre software all in one CAD),
@blender (Blender 3D software),
@yorik (FreeCAD professional architect & developer),
@CubicleNate (openSUSE and LeoCAD user; without him I would not know LeoCAD),
and many others.
Thank you very much for all your great efforts!
For people who care about, support, or build Free, Libre, and Open Source Software (FLOSS).