DWG/DXF Import Add-Ins are available for SpaceClaim. (ThomasNet)
DWG Import for SpaceClaim and DXF Import for SpaceClaim supplements SpaceClaim’s existing DWG/DXF file reading capabilities with ability to read PolyFace Mesh, Polygon Mesh, and 3D Face objects in DWG/DXF files and convert them into solid objects in SpaceClaim document. These solids can then be edited using SpaceClaim’s direct editing tools as if they were created in that application. Both …
Print3D supports DWG and DXF files
Autodesk claims that there are billions of DWG files and I believe them. That’s why over at Print3D we decided to add support for DWG and DXF file to our free plug-ins and standalone software. Details here.