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How to convert SOLIDWORKS (.sldasm,.sldprt) to 3MF?

PolyTrans|CAD+DCC performs mathematically precise CAD, DCC/Animation, GIS and BIM 3D file conversions into all key downstream 3D packages and file formats. Okino software is used and trusted throughout the world by many tens of thousands of 3D professionals in mission & production critical environments, backed by respectable personal support directly from our core development team.



Since the mid-1990s SOLIDWORKS has dominated the mid-tier MCAD solids modelling market amongst its closest rivals of ProE/Creo, Unigraphics NX, Autodesk Inventor and Solid Edge.

SOLIDWORKS has been Okino's #1 most requested and used MCAD importer (outside of STEP and IGES) for well over 25 years. We do not use reverse engineered technology, as commonly used by other companies, but rather license the real and actual runtime system from SOLIDWORKS Corporation on a yearly basis. This has allowed our SOLIDWORKS importer to remain entirely error free for over 25 years and is incredible fast to import and convert the most massive of assemblies.

Conversion from SOLIDWORKS is best handled via native .sldasm and .sldasm files, or equally well via STEP AP204 or "IGES BREP solids".



3MF, 3D Manufacturing Format, is a modern replacement for the legacy STL (StereoLithography) file format with an explicit focus on the proper transmission of CAD and non-CAD model data for 3D printing as well as to downstream services and platforms. From Okino's long term perspective, the VRML2 file format was and is "just as good" for such requirements but never had the correct understanding nor traction since its introduction in 1995.

Features of 3MF over the legacy STL format includes: geometry instancing support, layered texture maps, multiple layers of UV texture coordinates, vertex colors and extended material types.

History, features, overviews, implementation partners and more can be read on the 3MF Consortiumís web site.

Note: Microsoft Windows uses the 3D Manufacturing Format (.3mf) for all 3D printing tasks.

Please also refer to the 3MF export converter for more information related to 3MF.