CAD Computer Aided Design




FreeCAD (OSS) [Software Windows Mac Linux] (FREE) 3D parametric modeler
LibreCAD (OSS) [Software Windows Mac Linux] (FREE) 2D-CAD
Plasticity CAD for artists [Software Windows Mac Linux] ($$$) NURBS Modeler


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Gearsolid3D [YouTube] Covers state of the art CAD software & CGI.