NaroCAD - Free parametric 3D CAD, CAM software
FreeCAD - An open-source parametric 3D modeler
SelfCAD - SelfCAD is an online 3D modeling and slicing software.
Autodesk AutoCAD - Autodesk AutoCAD is a commercial computer-aided design (CAD) and drafting software application.
PTC Creo - Creo Elements/Pro – formerly Pro/ENGINEER – is the standard in 3D product design, featuring...
HeeksCAD - HeeksCAD is a free, open source, CAD application - Imports solid models from STEP and IGES files.