Jul 6, 2017 - Check out our list of the best sites to download free STL files, 3D printer files, 3D print models, and 3D printing designs in other file ... ... <看更多>

note: .stl files you can dowwnload and use on any 3D printer and most 3D software can import .stl files however a few tricks help reduce the number of ... ... <看更多>

Yes there is... It's called FreeCAD. The assembly module is already in the devel version (as of 06/15/2014) and will be of production ... ... <看更多>