OBJ to 3DM Conversion
Step-by-step instructions to help you transform OBJ into 3DM with ease:
Install Autoconverter
Download and install Autoconverter or Autoshaper on your system. Launch the software to convert OBJ mesh files to 3DM format.
Import OBJ Mesh File
Click Open... to load your OBJ mesh file (.obj), or drag and drop it into the application window.
Export to 3DM Format
Use Save As... to export your mesh file to the 3DM file format (.3dm).
Still finding it hard to convert OBJ to 3DM? These professional resources simplify OBJ mesh files conversion:
- Convert Mesh to NURBS for Rhino 3D (3DM) with Autoshaper
- NURBS Surface Reconstruction from Triangle Mesh or Point Cloud Data
- Convert Smooth Edges in SketchUp SKP Files
- Convert Solid Meshes to Faceted BREP in STEP File
Alias Wavefront Object File
A text-based file format, open standard for storing and exchanging 3D geometry data, widely used across 3D modeling, animation, and rendering software. Unlike binary formats, OBJ files store mesh data in human-readable text, making them highly compatible but less storage-efficient.
Main Benefits and Features
- Named Group Objects: OBJ files can store multiple objects with different names in a single file, which can be useful for organizing complex 3D scenes.
- Surface Materials: The OBJ file format supports surface materials with transparent colors and texture images, providing more realistic and detailed 3D models.
- Geometry Primitives: OBJ files can store geometry primitives in the form of quads or triangles. However, during the OBJ file conversion using our converters, any quad primitives will be simplified into two triangles, as only triangular facets are supported.
- OBJ File Size: Due to its textual format, OBJ files tend to have larger sizes compared to binary file formats like 3DS (3D Studio) or SKP (SketchUp). This means that OBJ files may take longer to load or transfer, and may require more storage space.
OBJ File Conversion
Autoconverter is the best OBJ file converter due to its high accuracy, fast processing speed, and wide 3D format support. It ensures lossless conversions while preserving model details, offering a user-friendly interface for seamless file conversion. If you need to handle OBJ files in AutoCAD, you can use our Automesher Application, which allows for seamless import and export of OBJ files directly in your CAD environment.
Rhinoceros 3D File
The native file format for Rhinoceros 3D (Rhino), a powerful and versatile NURBS-based 3D modeling software. As Rhino’s default format, 3DM is designed to store precise mathematical representations of curves, surfaces, and solids, making it ideal for high-accuracy modeling across industries.
Supported Geometry Types
Known for its precision and versatility, the 3DM format supports a comprehensive range of geometric data types, making it ideal for both organic freeform modeling and technical CAD applications, including:
- NURBS Surfaces: Enables mathematically precise, smooth, and editable surfaces essential for high-end industrial and automotive design.
- Polygonal Meshes: Stores tessellated geometry for 3D printing, rendering, and simulation.
- SubD (Subdivision Surfaces): Allows for flexible, organic modeling with editable subdivision geometry.
- Instance References: Lightweight object copies (not duplicates) that reference a single source, saving memory and ensuring synchronized updates.
3DM File Conversion
Our software solutions enable seamless conversion between 3DM and other major CAD formats (e.g., STEP, IGES, OBJ, DWG, STL). Autoconverter exports only polygonal meshes (STL, OBJ, etc.), suitable for 3D printing and real-time rendering, while Autoshaper preserves NURBS geometry, ensuring superior accuracy for CAD, CAM, and engineering workflows. Both converters can save 3DM files in legacy formats (Rhino 2.X - 7.X) or the latest Rhino 8.X version, ensuring smooth collaboration across different software environments.
OBJ vs 3DM Comparison
| Property | OBJ | 3DM |
|---|---|---|
| Extensions | .obj | .3dm |
| Name | Alias Wavefront Object | Rhinoceros 3D Model |
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