U3D to 3DM - 3-Step U3D Conversion To Any Format

Convert U3D to 3DM

U3D to 3DM Conversion

A straightforward guide to help you effortlessly convert U3D to 3DM in 3 easy steps:

  1. Download & Install:

    Convert your U3D files to 3DM format seamlessly using Autoconverter - simply install and launch the software on your system.

  2. Import U3D File:

    Either click Open... to browse for your .u3d file, or drag and drop it anywhere in the application window.

  3. Export to 3DM Format:

    Use Save As... to specify both location and filename (with .3dm extension) for your exported file.

Having technical issues with U3D to 3DM conversion? Our troubleshooting guides fix U3D files conversion problems:

U3D Universal 3D File

An open standard for 3D data exchange, originally developed by the 3D Industry Forum to enable universal 3D visualization across platforms. As a compressed, binary file format, U3D efficiently stores three-dimensional triangular meshes along with additional properties such as color, transparency, or texture coordinates.

Key Features of U3D

  • Open Standard:

    Royalty-free format maintained by ECMA International (Standard ECMA-363).

  • PDF Integration:

    U3D enables the generation of PDF documents that contain interactive 3D data (ISO 32000). This means that you can view, rotate, zoom, and manipulate 3D models within a PDF document.

  • Compact Size:

    Optimized compression for web and document embedding.

  • Cross-Platform:

    Viewable across major operating systems without proprietary software.

U3D File Conversion

Our Autoconverter and Automesher Application utilize Intel's powerful open-source IFX conversion library to deliver robust U3D file conversion capabilities. This technology enables seamless two-way conversion between the U3D format and various industry-standard 3D formats including STL, OBJ, SKP, DAE, STEP, IGES, DWG, 3DS, FBX and X3D. The solution provides reliable transformation of 3D data while maintaining optimal file structure and visual fidelity throughout the conversion process.

3DM 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.

U3D vs. 3DM Comparison

Property U3D 3DM
Extensions .u3d, .idtf .3dm
Name Universal 3D Rhinoceros 3D Model
Versions
  • Min: Rhino 2.x
  • Max: Rhino 8.x
Textures
Colors
Geometry components
Readers
Writers