Mastercam Post Processor Editing

For those looking to deeply master this skill, I highly recommend consulting the .

All logic statements, formulas, and G-code output lines inside a post block must be indented by at least one space or tab.

Most shops require similar basic adjustments to match their operator preferences and safety protocols. 1. Modifying Text Output and Comments

Read the code carefully in a text editor or simulation software (like Cimco Edit) to ensure all G-codes are in the correct format. mastercam post processor editing

To add custom text, wrap your words in double quotes inside the post block, followed by , e$ to force a new line. 2. Tweaking Coolant Codes

Let's walk through how to edit these.

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This modification improves safety and readability by separating the toolchange and spindle start functions.

You can perform math on the fly.

# POST MODIFIED BY [Your Name] on [Date] # CHANGE LOG: Added forced G43, changed arcs to R. including any personal information you added.

Boolean switches (0 or 1) that allow you to quickly toggle features like force_m06 (force tool change) or arc_output (output as radius or diameter).

Mastercam provides a built-in post processor editor, which allows users to modify the post processor code. The editor is accessible through the Mastercam interface, and it provides a range of tools and features to facilitate editing.

At its core, a post processor acts as a translator. It converts the generic toolpath data from Mastercam (Cutter Location Source data) into the specific G-code language that your unique CNC machine and its controller (like Fanuc, Siemens, or Heidenhain) can understand and execute safely.