Convert IGES to DRW

Understanding IGES and DRW file formats

IGES (Initial Graphics Exchange Specification) is a widely used file format for exchanging 2D and 3D CAD data between different CAD systems. It is a neutral format, meaning it is not tied to any specific software, and is commonly used for sharing models, assemblies, and drawings.

DRW files are drawing files associated with specific CAD software, most notably PTC Creo (formerly Pro/ENGINEER) and DraftSight. These files store 2D drawing information, annotations, and layout details, and are typically used for technical documentation and manufacturing.

How to convert IGES to DRW

Direct conversion from IGES to DRW is not always straightforward, as IGES is a neutral exchange format and DRW is proprietary. The process usually involves importing the IGES file into a CAD program that supports both formats and then saving or exporting the drawing as a DRW file.

Recommended software for IGES to DRW conversion

• PTC Creo: This is the primary software for working with DRW files. To convert, use File → Open to import the IGES file, then create a drawing and save it as a DRW file using File → Save As → Save a Copy and select DRW as the format.
• DraftSight: DraftSight can import IGES files and export drawings in its native DRW format. Use File → Open to import IGES, then File → Save As to save as DRW.
• Autodesk AutoCAD: While AutoCAD does not natively support DRW, you can import IGES, create a drawing, and then use a third-party tool or plugin to export to DRW if needed.

Step-by-step conversion using PTC Creo

1. Open PTC Creo.
2. Go to File → Open and select your IGES (.igs or .iges) file.
3. Once the model is loaded, create a new drawing from the model.
4. Go to File → Save As → Save a Copy.
5. Choose DRW as the file type and save your drawing.

Tips and considerations

• Ensure that the imported geometry is correct and all annotations are preserved after conversion.
• Some features or details may not transfer perfectly due to differences in file format capabilities.
• Always review the resulting DRW file for accuracy before using it for manufacturing or documentation.