Convert PRT to EASM

Understanding PRT and EASM file formats

PRT files are 3D part files commonly created by CAD software such as Siemens NX, PTC Creo, or Solid Edge. These files contain detailed information about a single part, including geometry, features, and parameters. EASM files are eDrawings Assembly files, a lightweight, read-only format developed by Dassault Systèmes for sharing 3D models and assemblies. EASM files are primarily used for viewing and collaboration, especially with the free eDrawings Viewer.

Why convert PRT to EASM?

Converting a PRT file to EASM format allows users to share complex 3D part data with stakeholders who may not have access to the original CAD software. EASM files are much smaller and can be easily viewed, annotated, and measured using the free eDrawings Viewer, making them ideal for collaboration and review.

How to convert PRT to EASM

Direct conversion from PRT to EASM is not always straightforward, as it depends on the originating CAD software and its compatibility with eDrawings. The most reliable method is to use SolidWorks with the eDrawings Publisher add-in, which supports importing various PRT formats and exporting to EASM.

Step-by-step conversion using SolidWorks

1. Open SolidWorks.
2. Go to File → Open and select your PRT file. SolidWorks supports several PRT formats, but you may need to use a neutral format like STEP (.step, .stp) or IGES (.igs, .iges) if your PRT file is not directly supported.
3. Once the part is open, go to File → Save As.
4. In the Save as type dropdown, select eDrawings (*.easm).
5. Click Save to export your file as an EASM.

Best software for PRT to EASM conversion

• SolidWorks with eDrawings Publisher – Best for direct export and high compatibility.
• eDrawings Professional – Can open and publish supported CAD files to EASM.
• Autodesk Inventor (with eDrawings add-in) – For some PRT formats, may require intermediate conversion.

Tips and considerations

• If your PRT file is not supported, export it from your CAD software as STEP or IGES, then import into SolidWorks for EASM export.
• EASM files are read-only and intended for viewing, not editing.
• Check for any loss of detail or features after conversion, especially with complex parts.