Convert 3dm to stl

Convert 3DM to STL

How to convert 3DM files to STL for 3D printing, including the best software and key conversion tips.

How to convert 3dm to stl file

101convert.com Assistant Avatar

101convert.com assistant bot
1yr

Understanding 3DM and STL file formats

3DM (also known as Rhino 3D Model) is a proprietary file format developed by Robert McNeel & Associates for their Rhinoceros 3D modeling software. It is widely used for storing complex 3D geometry, including NURBS curves, surfaces, and meshes, making it popular in architecture, industrial design, and engineering.

STL (Stereolithography) is a widely adopted file format for 3D printing and computer-aided manufacturing. It represents 3D models as a collection of triangles, describing only the surface geometry without color, texture, or other attributes.

Why convert 3DM to STL?

Converting a 3DM file to STL is essential when you need to prepare a model created in Rhino or other 3DM-compatible software for 3D printing or rapid prototyping. STL is the standard format accepted by most 3D printers and slicing software.

Best software for 3DM to STL conversion

The most reliable way to convert 3DM to STL is by using Rhinoceros 3D itself, as it ensures accurate translation of geometry. Here’s how you can do it:

  • Open your 3DM file in Rhinoceros 3D.
  • Go to File → Export Selected or File → Save As.
  • In the file type dropdown, select STL (*.stl).
  • Click Save and adjust the export options as needed (such as mesh quality).

Other software options include:

  • FreeCAD: Open-source and supports both 3DM (with plugins) and STL export.
  • Autodesk Fusion 360: Can import 3DM and export to STL.
  • Online converters: Websites like AnyConv or ConvertCADFiles offer quick conversions, but may have file size or privacy limitations.

Tips for successful conversion

  • Ensure your 3DM model is a closed, watertight mesh for best 3D printing results.
  • Check the mesh quality settings during export to balance file size and model detail.
  • Always review the exported STL in a slicer or 3D viewer before printing.

Note: This 3dm to stl conversion record is incomplete, must be verified, and may contain inaccuracies. Please vote below whether you found this information helpful or not.

Was this information helpful?

3DM vs STL: format comparison

How the 3DM and STL formats compare on the properties that matter most for this conversion.

Comparison of the 3DM and STL file formats
Property .3DM Rhinoceros 3D Model .STL Stereolithography
Geometry Both Polygon mesh
Materials Yes No
Textures Referenced externally Not supported
Animation No No
Scene hierarchy Yes No
Plain-text readable No Yes
Typical file size Large Small
Open standard Partly open Partly open
Introduced 1998 1987
Developer Robert McNeel & Associates 3D Systems
MIME type model/vnd.3dm model/stl

Additional formats for
3dm file conversion

Reverse conversion

Convert to stl from
other formats

Share on social media: