🏅 Convert DWG to 3DM: AutoCAD Drawing to Rhino 3D Model Converter

How to Convert DWG to 3DM?

Stop struggling with DWG drawings to 3DM export - our simple 3-step process delivers reliable output from start to finish:

  1. 📥 Install Automesher Application

    Download and install Automesher Application for AutoCAD, BricsCAD, GstarCAD, or ZWCAD - it adds the AmExportMesh command needed to export 3DM files directly from DWG drawings. Restart your CAD software after installation to load the plugin.

  2. ▶️ Run 3DM Export Command

    Type AmExportMesh in the command line and press Enter. Select the 3D entities you want to export from the DWG model space - supported types include Polyface Mesh, Polygon Mesh, 3D Solid, and 3D Face - then press Enter again to confirm the selection.

  3. 💾 Save as 3DM File

    In the save dialog, select 3DM (*.3dm) as the output format, choose your destination folder and filename, then click Save. Automesher converts the selected DWG entities and writes them to your file.

DWG What is a DWG File? (AutoCAD 2D/3D CAD Drawing Explained)

The DWG file format is a proprietary binary format developed by Autodesk for storing 2D drawings and 3D models in CAD (Computer-Aided Design) workflows. As the native format for AutoCAD, DWG files are widely recognized as the industry standard across architecture, engineering, and construction sectors for their precision, flexibility, and cross-platform compatibility.

Key Features of DWG Files

  • Broad Compatibility: DWG files work seamlessly with popular CAD programs like AutoCAD, BricsCAD, ZWCAD, and IntelliCAD, ensuring easy sharing and collaboration across different software environments.
  • High-Precision Vector Data: DWG files store exact vector-based 2D graphics, 3D models, and rich metadata, making them ideal for detailed blueprints, architectural designs, and complex engineering projects.
  • Efficient Use of Blocks: DWG drawings support reusable "blocks" - predefined components like symbols or templates - that help streamline design workflows, ensure consistency, and reduce file sizes.

DWG File Conversion Made Simple

Looking to convert DWG files into popular 3D or GIS formats like OBJ, STL, DXF, KML, or KMZ? Our tools, Automesher Application and Automapki Application, enable fast, accurate DWG conversions while preserving design details. Convert DWG to SKP, STL, KML, and more - start your free trial today and experience hassle-free CAD data transformation!

3DM Rhinoceros 3D (3DM) File Format

The 3DM file format is the native format for Rhinoceros 3D (Rhino), a leading NURBS-based 3D modeling software used across industries like architecture, engineering, and industrial design. 3DM files accurately store mathematical representations of curves, surfaces, solids, and meshes, making them essential for precision 3D modeling and CAD workflows.

Key Features of 3DM Files

  • NURBS Geometry: Supports precise, smooth surfaces critical for advanced design and engineering projects.
  • Polygonal Meshes: Stores tessellated 3D models ideal for rendering, simulation, and 3D printing workflows.
  • SubD Surfaces: Allows flexible, editable subdivision modeling for organic shapes and complex surfaces.
  • Instance References: Saves memory by creating linked object instances, optimizing large and detailed models.

Convert 3DM Files Seamlessly

Autoconverter and Autoshaper simplify 3DM file conversion to popular formats like STEP, IGES, OBJ, STL, and DWG. Automate the export of 3DM polygon meshes for 3D printing, or preserve NURBS data for engineering-grade CAD models. Save files in legacy (Rhino 2.X - 7.X) or latest Rhino 8.X formats to ensure compatibility across all project environments.

DWG vs 3DM - Comparison

The table below shows the differences between DWG and 3DM to guide your selection for 3D modeling, CAD, or GIS tasks.

Feature DWG 3DM
Extensions .dwg .3dm
Name AutoCAD DWG Drawing Rhinoceros 3D Model
Versions
  • Min: AutoCAD 2010
  • Max: AutoCAD 2027
  • Min: Rhino 2.x
  • Max: Rhino 8.x
Textures ✅ ✅
Colors ✅ ✅
Geometry Components ✅ ✅
User Attributes ✅ ✅
Quads ✅ ✅
Importers
Exporters

More DWG and 3DM Conversion Guides

Want a faster, easier approach to DWG to 3DM conversion? Our expert guides below show you exactly how DWG drawings conversion is done:

👉 Tired of unreliable DWG and 3DM conversion tools? Switch to our DWG to 3DM converter for precise, consistent results and a smoother workflow every time.