Mastercam Post Processor Editing -

This is the most critical safety zone. This controls what appears before the first movement.

Original:

psof$            # Start of file for non-zero tool
  pbld, n$, "G00 G17 G40 G80 G90", e$

Edited (Adding a custom safe start):

psof$            
  pbld, n$, "G20" (Inch mode)
  pbld, n$, "G90 G80 G40 G17" (Absolute, cancel canned cycle/cutter comp)
  pbld, n$, "G91 G28 Z0." (Send Z home)
  pbld, n$, "G90 G54" (First work offset)
  pbld, n$, "M01" (Optional stop for operator check)
  e$

Before editing, you must understand the files: mastercam post processor editing

Golden Rule: Always make a backup copy of your original .PST and .PSB before making any changes. This is the most critical safety zone

When running a post, Mastercam generates debug files if configured. Edited (Adding a custom safe start): psof$ pbld,