Use the modified post to generate the NC code.
When you post your toolpath, the resulting file will display the originating block name (e.g., [ptlchg$] ) right next to the G-code line. This tells you precisely which section of the script needs correction. Fixing Common Compilation Errors
When you post-process a toolpath with this active, your NC file will look like this: G00 X1.25 Y2.5 # prapidout G01 Z-0.5 F15. # plinout Use code with caution.
wbuf$ (buffer_number, write_action) rbuf$ (buffer_number, read_action) mastercam post processor editing
If your post edit is failing or generating unexpected numbers, you need to find out which specific post block is controlling that output. Mastercam includes a powerful interactive debugging mode: In Code Expert, enable the . Run the post processor on an operation.
scool50 : "M08" # Flood Coolant scool51 : "M88" # Through-Spindle Coolant scool52 : "M07" # Mist Coolant Use code with caution. 3. Formatting Sequence Numbers (N-Codes)
Editing a post processor carries inherent risks. A single misplaced character can output faulty G-code, resulting in broken tools, ruined parts, or catastrophic machine collisions. Follow these safety protocols before altering any file: Use the modified post to generate the NC code
use_rotm : 1 #Use rotary axis shortest direction?
Safe tool changes prevent collisions with fixtures, stock, or the machine enclosure. You can modify the ptlchg$ block to ensure the Z-axis retracts to the maximum machine home position ( G28 G91 Z0. ) before commanding a tool rotation or moving the X and Y axes.
Editing how rotary axes ( A , B , C ) or multi-axis toolpaths (5-axis) are output. 5. Testing and Debugging Fixing Common Compilation Errors When you post-process a
Customizing coolant commands, enabling probing cycles, or controlling special machine accessories.
file to a secure location before editing. If an edit fails, you must be able to revert to a working version. Use the Right Editor : Mastercam includes Code Expert
Mastercam includes a dedicated tool to modify these files, known as the .