3DM to STL Converter

Select files for conversion or just drag and drop them to the upload area

How to convert 3DM files to STL online?

Step 1.

Upload 3DM-file

Click "Choose File" button to select a 3dm file on your computer. 3DM file size can be up to 50 Mb.
Step 2.

Convert 3DM to STL

Click "Convert" button to start conversion.
Step 3.

Download your STL

When the conversion process is complete, you can download the STL file.

Information about 3DM and STL file formats

Name 3DM STL
Full name Rhino 3D Model Stereolithography File Format
File extension .3dm .stl
MIME type
Developed by Robert McNeel & Associates 3D Systems
Type of format
Description The Rhinoceros file format (.3DM) is useful for the exchange of NURBS geometry. The Rhino developers started the openNURBS Initiative to provide computer graphics software developers the tools to accurately transfer 3-D geometry between applications. An open-source toolkit, openNURBS includes the 3DM file format specification, documentation, C++ source code libraries and .NET 2.0 assemblies to read and write the file format, on supported platforms (Windows, Windows x64, Mac, and Linux). STL is a file format native to the stereolithography CAD software created by 3D Systems. This file format is supported by many other software packages. It is widely used for rapid prototyping, 3D printing and computer-aided manufacturing. STL files describe only the surface geometry of a three-dimensional object without any representation of color, texture or other common CAD model attributes. The STL format specifies both ASCII and binary representations. Binary files are more common, since they are more compact.
Technical details An STL file describes a raw, unstructured triangulated surface by the unit normal and vertices (ordered by the right-hand rule) of the triangles using a three-dimensional Cartesian coordinate system. In the original specification, all STL coordinates were required to be positive numbers, but this restriction is no longer enforced and negative coordinates are commonly encountered in STL files today. STL files contain no scale information, and the units are arbitrary.
File conversion 3DM conversion STL conversion
Associated programs Autodesk Inventor Fusion, McNeel Rhino TurboCAD, GOM Inspect, STL Viewer, Geomagic Explorer, Parametric Technology Creo, Dassault Systemes CATIA, KeyCreator, MeshLab, SolidWorks, Pro/Engineer, CloudCompare, Blender, AutoCAD, 3D Studio Max, Autodesk Inventor, Mechanical Desktop
Wiki https://en.wikipedia.org/wiki/Rhinoceros_3D https://en.wikipedia.org/wiki/STL_(file_format)