Export IGES Addon for Blender creates subdivision limit surfaces and saves it as IGES file.

From Blender using the default options.

System requirements:

OS: Windows 10 64bit with VC++ runtime 2017 or above.

OS: Mac OSX 10.12 for Intel CPUS, 11 for ARM CPUs or higher.

OS: Linux 64 with the following dependencies. => /lib/x86_64-linux-gnu/ => /lib/x86_64-linux-gnu/ => /lib/x86_64-linux-gnu/ => /lib/x86_64-linux-gnu/

Should work with Blender 2.82 and above. Tested on Ubuntu 20.04 LTS.


Install the downloaded addon using Edit->Preferences->Install and choos the downloaded ZIP file. Do not unzip the file prior to installation.

Enabling the addon


Select the objects to be exported and File->Export->Export IGES. It is advisable to export objects separately in batch mode. so that it can be managed better in CAD systems.

Export Options:

  • Export slected only exports selected objects.
  • Subdivision level: 1, 2, or 3. Default value is 2.
  • Batch Mode: Saves objects as individual IGES files. The name of the file will be in the format "name_objectname.igs"
  • Up axis (default Z Up)
  • Forward axis (default Y forward)
  • Apply Modifiers (default on)


  • Tangency at the vertices of odd variance may not be sufficient with low subdivision level.
  • SubDivison limit surface will conicide with the border edges and corners.



v 1.4.0

  • Support for Applying Modifiers. (excluding the subdivision modifier)
  • Initial Release for Mac OSX

v 1.3.5

  • Support for Axis Selection
  • Support for automatic scaling based on unit scaling

v 1.3.0

  • Support for Blender 3.1
  • Support for vertex creases.

v 1.2.0:

  • Support for Blender 3.0

v 1.1.0:

  • Now supports batch mode translation.
  • Better performance.

v 1.0.0:

  • Initial stable release.
  • Support for edge creases.

v 0.9.0:

  • Better Performance
  • Initial release for Linux

v 0.8.0:

  • Initial release for Windows


Please read the license agreement.

Third Party credits:

  • OpenSubdiv: Copyright 2013 Pixar
  • libIGES: Copyright 2015, Dr. Cirilo Bernardo (This email address is being protected from spambots. You need JavaScript enabled to view it.)
  • SISL: Copyright (C) 1998, 2000-2007, 2010, 2011, 2012, 2013 SINTEF Digital, Applied Mathematics, Norway.


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