Convert IFC to IGES

Understanding IFC and IGES file formats

IFC (Industry Foundation Classes) is a widely used open file format for Building Information Modeling (BIM). It enables interoperability between different software applications in the architecture, engineering, and construction (AEC) industries. IFC files store 3D building models, including geometry, spatial relationships, and metadata.

IGES (Initial Graphics Exchange Specification) is a neutral file format for exchanging 2D and 3D CAD data between different CAD systems. IGES is commonly used in mechanical engineering and manufacturing for sharing wireframe, surface, and solid models.

Why convert IFC to IGES?

Converting IFC to IGES is often necessary when you need to transfer architectural or construction models from BIM software to CAD applications used in manufacturing or mechanical design. IGES files are more universally supported in traditional CAD environments, making them ideal for downstream engineering workflows.

Best software for IFC to IGES conversion

Several software solutions can convert IFC files to IGES format. The most reliable and feature-rich options include:

• Autodesk Revit (with plugins): Revit can import IFC files and, with the help of plugins like SimLab IGES Exporter, export models to IGES format.
• Autodesk Navisworks: Supports IFC import and, with additional plugins, can export to IGES.
• FreeCAD: An open-source CAD tool that can import IFC files and export to IGES via File → Export → IGES.
• Datakit CrossManager: A professional file converter supporting direct IFC to IGES conversion.

How to convert IFC to IGES using FreeCAD

1. Open FreeCAD and go to File → Open to load your IFC file.
2. Once the model is loaded, select the objects you want to export.
3. Go to File → Export.
4. In the export dialog, choose IGES (*.igs, *.iges) as the file type.
5. Click Save to complete the conversion.

Tips for successful conversion

• Check the geometry after conversion, as some BIM elements may not translate perfectly to IGES.
• Use the latest version of your chosen software for improved compatibility and bug fixes.
• Consider cleaning up your IFC model before conversion to reduce file size and complexity.

Conclusion

Converting IFC to IGES bridges the gap between BIM and CAD workflows, enabling seamless data exchange across industries. FreeCAD is a recommended free solution, while professional tools like Datakit CrossManager offer advanced features for complex projects.