Mastercam Post Processor Editing | REAL · 2024 |

The post processor editing process typically involves:

Stores string definitions, control definitions, and menu prompts visible inside the Mastercam interface.

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The Ultimate Guide to Mastercam Post Processor Editing A Mastercam post processor is the critical bridge between your digital CAD/CAM design and your physical CNC machine. It translates Mastercam’s internal toolpath data (NCI files) into the specific G-code dialect your machine controller understands.

: After saving changes, test the post on a simplified part with only one or two toolpaths to verify the output before running it on a machine. Advanced Support and Resources Mastercam Post Processor User Guide - CLaME

Ensure that changes made inside your post processor script match the settings allocated inside your Mastercam Machine and Control Definition files ( .mcam-control ).

Locate the psof$ and ptlchg$ blocks. You will likely see a line like pbld, n$, sg28, sg91, e$ . Simply delete sg91, to keep the machine in absolute (G90) mode.

Most FANUC controls require M29 Sxxxx on a line before G84/G74 . A simple text edit won't work; you need logic. Inside the pdrill$ post block (for tapping cycles), add:

Before you edit a single line of code, you must understand Mastercam's modern architecture. Your post processor does not work in isolation. It relies on two siblings:

Output a test G-code file using the unedited post. You will use this to run a text comparison against your edited post output later. 3. Anatomy of an MP Post Processor File