Mastercam Post Processor - Editing

When a post fails or outputs incorrect G-code, the editor must trace the execution.

Here are three real-world edits you might need tomorrow: mastercam post processor editing

Problem: Your post outputs M8 (flood), but you need M88 (high-pressure). Solution: Find the scoolant string definitions. Change: scoolant : "M8" → scoolant : "M88" Then ensure the pcan function calls scoolant. When a post fails or outputs incorrect G-code,

Common edit: Force a tool length measure on every tool change. To edit a post effectively, one must understand

ptlchg$          # Tool change
  pbld, n$, "M06", "T", t$, e$
  pbld, n$, "G43", "H", t$, "Z0.1", "M08", e$   # Add H offset and coolant

To edit a post effectively, one must understand the data source. Mastercam generates an .nci file (Intermediate Code) before the post processor runs. The NCI contains generic toolpath data independent of the machine controller.