Convert IGS to ASM

Understanding IGES and ASM file formats

IGES (Initial Graphics Exchange Specification, .igs or .iges) is a widely used neutral file format for exchanging 2D and 3D CAD data between different CAD systems. It supports wireframe, surface, and solid modeling data, making it a popular choice for interoperability in engineering and manufacturing workflows.

ASM files are assembly files used primarily by PTC Creo (formerly Pro/ENGINEER). These files store information about how multiple parts (often in .prt format) are assembled together, including constraints, relationships, and references between components.

Why convert IGES to ASM?

Converting an IGES file to an ASM file is essential when you need to import neutral CAD data into PTC Creo and organize it as an assembly. This allows for further editing, simulation, and manufacturing processes within the Creo environment.

How to convert IGES to ASM

Direct conversion from IGES to ASM is not typically a one-step process, as IGES files contain geometry, while ASM files define assemblies. The usual workflow involves:

1. Importing the IGES file into PTC Creo.
2. Saving or assembling the imported parts into a new assembly (ASM file).

Step-by-step conversion using PTC Creo

1. Open PTC Creo.
2. Go to File → Open and select your IGES (.igs) file.
3. Import the geometry. Creo will create part files (.prt) for each body or surface.
4. To create an assembly, go to File → New → Assembly and give your assembly a name.
5. Use Insert → Component → Assemble to add the imported parts to your new assembly.
6. Once your assembly is complete, save it as an ASM (.asm) file.

Best software for IGES to ASM conversion

• PTC Creo – The industry standard for working with ASM files and assemblies. It offers robust IGES import capabilities and full assembly management.
• Autodesk Inventor or SolidWorks – These can import IGES files and export assemblies, but for native ASM files, PTC Creo is recommended.

Tips for successful conversion

• Check the IGES file for errors or missing data before importing.
• After import, verify geometry integrity and fix any issues in Creo before assembling.
• Use the latest version of Creo for best compatibility and import/export features.