FreeCAD is a general purpose parametric 3D CAD modeler. The development is completely Open Source (LGPL License). FreeCAD is aimed directly at mechanical engineering and product design but also fits in a wider range of uses around engineering, such as architecture or other engineering specialties. FreeCAD features tools similar to Catia, SolidWorks or Solid Edge, and therefore also falls into the category of MCAD, PLM, CAx and CAE.
- Because is an user friendly software and is free to use.Autodesk Autocad is very expensive
- AutoCAD is a 2D drawing program, mostly used for architecture and structures. FreeCAD is 3D and aimed at mechanical engineers. They do different things.
- Not bad for a free Software, but Workflow seems very antiquated and unneccessarily complicated. It lacks logic on available tools in different workbenches. There are much ways to get to your goal but every way takes really a lot of clicks and more of trial and error.