OBJ to 3MF
Please find below the list of our other useful resources related to OBJ and 3MF interoperability and exchange that could help you with the OBJ to 3MF conversion.
OBJ File
OBJ (Alias Wavefront Object) is a text-based file format for 3D geometry objects which is very popular and widely supported by many 3D software programs. The OBJ file format is capable of storing named group objects, surface materials with transparent colors and texture images, and quads or triangles as geometry primitives. However, our Autoconverter software will simplify every OBJ quad primitive with two triangles as only triangular facets are supported during the OBJ file conversion. It's important to mention that due to a textual format OBJ files will always be much bigger than the binary files, e.g. 3DS (3D Studio) or SKP (SketchUp).
3MF File
3MF (3D Manufacturing Format) is an open source XML file format developed by the 3MF Consortium to store three dimensional triangles with additional properties e.g. color, transparency or texture coordinates for the 3D printing industry. The 3MF file format becomes a modern replacement for the original STL 3D printing file format. Autoconverter or Automesher Application our 3MF file converters can read and write to and from 3MF file format thanks to the open source lib3mf library provided by the 3MF Consortium. However currently we do not support groups hierarchy for 3MF files.