Mastercam Post Processor Editing May 2026

Here are some common tasks you may perform when editing a post processor:

Do not use Windows Notepad. Get Notepad++ or VS Code with the "MP" (Mastercam Post) syntax highlighter. This will save you from missing a $ or a bracket by a mile. mastercam post processor editing

The post processor reads these integer codes and maps them to internal variables. Here are some common tasks you may perform

: Identified by a "p" prefix (e.g., pheader , ptoolchange ), these blocks execute at specific points during the G-code generation process. mastercam post processor editing

For deeper customization, you must edit the logic within the file using Mastercam’s proprietary MP scripting language. Mastercam Post Processor User Guide - CLaME

Post files are usually found in the C:\Users\Public\Documents\shared Mastercam 20xx\Posts directory.