Converting Tekla Structures model to Autodesk Inventor

Question:
What is the best way for converting Tekla Structures model to Autodesk Inventor?

Answer:
To transfer a Tekla Structures model to Autodesk Inventor, the most effective method is to use the STEP or IGES file formats. Depending on your version of Tekla Structures, we recommend the following workflows:

1. Native export
Starting with Tekla Structures 2025, the software includes a native export for STEP and IGES. This built-in tool is optimized for better geometry handling and larger model sizes compared to older methods. STEP and IGES files from Tekla Structures are intended as high-quality solid geometry inputs for mechanical design. The imported geometry can be modified and used to create detailing drawings within the mechanical software.

• Recommended for Tekla Structures 2025 and newer
• How to use: Go to the File menu > Export > STEP/IGES.
• Documentation: Export to STEP or IGES

2. Multi-converter extension
If you are using a version of Tekla Structures prior to 2025, or if you need to batch-export multiple formats alongside STEP, use the Multi-converter extension available in the Tekla Warehouse.

• Recommended for older versions
• Extension: Multi converter
• Documentation: Export to IGES/STEP/OBJ/STL with Multi-converter

3. Third-party specialized tools
For extremely complex projects or specific data translation needs, dedicated 3D processing software can also be used to bridge the gap between BIM and Mechanical CAD:

• Rhinoceros: http://www.rhino3d.com/
• PolyTrans 3D: http://www.okino.com/default.htm
• CAD Exchanger https://cadexchanger.com/

Legacy note: The old "STEP IGES converter" is now considered a legacy tool. For the best performance and compatibility with Autodesk Inventor, please upgrade to the native 2025 export or use the Multi-converter extension.