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What is 3DM file type and extension?

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What is 3DM extension?

A 3DM file is a native file format for 3D models in Rhinoceros CAD application software. It contains surface, point and curve information.

3DM files can be exported in both NURBS (non-uniform rational B-spline) and polygon mesh representations, making it possible for other CAD / CAM / CAE / graphic design software to edit those models.

In addition to Rhino CAD software, 3DM files can be opened with Autodesk Fusion 360.

Software to open and edit 3DM files:

Formats list

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How To Import (Read) and Export (Write) 3DM files

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