If you’ve been using GibbsCAM for more than a few months, you’ve likely felt the friction. You program a perfect 3D HST toolpath, verify it with the solid renderer, and post it out. But when that code hits the Haas, Mazak, or DMG Mori, something feels... off.
Always run a newly modified post processor using a dry run, single-block execution, or air cut before cutting raw material.
C:\ProgramData\3D Systems\GibbsCAM\[Version]\[MDD or VMM folder] Post Files gibbscam post processor
This defines the machine type (Mill, Lathe, Mill-Turn, Wire EDM), number of axes, and default file extensions.
When deploying a new or modified post processor, test the output G-code on the CNC machine using dry run mode, graphic simulation, or an air cut (z-axis offset high above the fixture) to verify spatial movements safely. If you’ve been using GibbsCAM for more than
If your "report" is actually a request to modify a post-processor, you must provide a specific data package to your reseller or developer:
Gibbs outputs every coordinate by default unless you tell it not to. You will see X0. Y0. Z0. X0. Y1. X0. Y2. In your .PST, you must define modal addresses . You need a variable that stores the last X position and only outputs a new X if the value changed. When deploying a new or modified post processor,
To help tailor this information to your specific setup, what or controller type (e.g., Haas, Fanuc, Mazak) are you planning to use with GibbsCAM? Share public link
Legacy GibbsCAM posts often used a .pst or .txt format. However, modern versions (GibbsCAM 2016 and later) have transitioned to the format, a more powerful and structured system. A GPP file is essentially a script written in a proprietary language that contains sections for:
For technical assistance with a specific post error, you can contact GibbsCAM Support at . Editing tool list summary - GibbsCAM Support Forums
Because CPost is a compiler, the order of your blocks matters. You cannot just copy/paste code from a Fanuc post into a Heidenhain post. The logic stack must be rebuilt.