There are several reasons why you might need to edit a post processor:
Here are three real-world edits you might need tomorrow:
The post outputs G91 G28 Z0. (incremental return), but your machine prefers G53 Z0. (machine coordinates). Solution: Find pretract or pcan . Replace the G91 G28 Z0. with G53 Z0. and remove the G90 that might be missing afterward. mastercam post processor editing
A complete "post" typically consists of three primary files:
Editing a post processor is not a luxury; it is a necessity for any shop that demands efficiency, safety, and customized output. A poorly edited post can crash a spindle. A masterfully edited post can shave seconds off every cycle and eliminate manual editing at the control. There are several reasons why you might need
The simplest debugging method is inserting diagnostic prints.
A .pst file is written in a proprietary scripting language with a syntax that resembles BASIC. Solution: Find pretract or pcan
Many common changes (like turning off tool pre-calls or changing G-code formats) are already built-in. Look at the top of the file for a "switches" table where you can simply change a to toggle features. Note Your Changes: Use a unique character (like a pound symbol