: If your code needs a specific tweak (like changing an M-code or adjusting G54 placement), follow these steps to ensure the developer has what they need: Mark up the NC code
CYCLE_DRILL: G81 Xx Yy Zz Rr Ff CYCLE_TAP: G84 Xx Yy Zz Rr Qq Fcalc_feed
GibbsCAM addresses this with its module and specialized post processors that use a Sync Manager . These posts read a synchronized operation list and output code with WAIT and SIGNAL commands (M-codes) to coordinate the spindles. Writing a post like this without vendor support is nearly impossible for an in-house programmer. gibbscam post processor
Skilled CAM programmers can build posts using the . Independent consultants (available on forums like CNCZone or PracticalMachinist) often charge $500–$2,000 for a custom post.
Use Notepad++ or GibbsCAM’s built-in Post Editor (recommended). Do NOT use standard Windows Notepad—it can corrupt line breaks. : If your code needs a specific tweak
If the machine throws an arc radius error, the post processor may be set to absolute arc centers (I, J, K) instead of incremental, or it may lack support for radius (R) formatting.
If your post isn't outputting the Z depth correctly, you will see here whether the problem is the post logic (your fault) or the Gibbs data (the programmer's fault). Skilled CAM programmers can build posts using the
The three components are:
Look for the FORMAT section. Change FORMAT FEED "5.2" to FORMAT FEED "5.0" to output feed as an integer.
You will see something like this: NCDATA(234): TOOL_ID=5, DIAM=0.5, Z_MIN=-1.234
Maintaining your post-processor library prevents costly operator errors and data loss during software upgrades.