Convert CMP to IGS

Understanding CMP and IGS file formats

CMP files are typically associated with Gerber CAM files used in PCB (Printed Circuit Board) design. These files contain data for manufacturing circuit boards, such as copper layers, solder masks, and silkscreen layers. CMP often refers to the component side of a PCB layout.

IGS (or IGES) stands for Initial Graphics Exchange Specification. It is a widely used neutral file format for exchanging 2D and 3D CAD data between different CAD systems. IGS files are commonly used for sharing mechanical and engineering designs.

Why convert CMP to IGS?

Converting a CMP file to an IGS file allows PCB designs to be imported into 3D CAD software for further mechanical design, simulation, or integration with other components. This is useful for engineers who need to visualize or modify PCB layouts in a 3D environment.

How to convert CMP to IGS

Direct conversion from CMP to IGS is not always straightforward, as they serve different purposes. However, many PCB design tools and CAM software offer export options to bridge this gap. The general process involves:

1. Open your CMP file in a PCB design or CAM software that supports Gerber files.
2. Export or convert the PCB layout to a 3D model format (such as STEP or directly to IGES/IGS).
3. If the software does not support direct export to IGS, export to an intermediate 3D format (like STEP), then use a CAD tool to convert STEP to IGS.

Recommended software for CMP to IGS conversion

• Altium Designer: Open your PCB project, then use File → Export → STEP 3D. You can then use a CAD tool like FreeCAD to convert the STEP file to IGS.
• Autodesk Fusion 360: Import the exported 3D model (STEP), then use File → Export → IGES to save as an IGS file.
• FreeCAD: Open the 3D model (STEP), then use File → Export → IGES to convert to IGS format.
• Online converters: Some online services can convert STEP to IGS if you already have a 3D export from your PCB tool.

Tips for successful conversion

• Ensure your PCB design software supports 3D export.
• Check the exported 3D model for accuracy before converting to IGS.
• Use reputable CAD tools to avoid data loss during conversion.