Post Processor _best_: Gibbscam
GibbsCAM utilizes different styles of post processors depending on the complexity of the machine tool and the generation of software you are using:
Proper post processors handle complex machine kinematics, managing safe retraction moves during indexial multi-axis indexing or continuous 5-axis machining to prevent collisions.
The programmer designs the part geometry and assigns cutting strategies within GibbsCAM. gibbscam post processor
Understanding how these post processors work, how to customize them, and how to troubleshoot errors is essential for maximizing shop floor productivity and preventing costly machine collisions. What is a GibbsCAM Post Processor?
Understanding how to select, customize, and troubleshoot these post processors is essential for reducing setup time, eliminating manual code editing, and preventing costly machine collisions. What is a GibbsCAM Post Processor? What is a GibbsCAM Post Processor
Comes with every installation. Includes generic posts for Fanuc, Siemens, Heidenhain, Haas, Mazak (conversational and EIA), Okuma, and many others. These are safe starting points but require verification.
Designed specifically for complex machinery, such as multi-tasking machines (MTM), Swiss-turn lathes, and 5-axis gantry mills. Custom posts map out complex kinematics, axis limits, and multi-channel synchronization. The Comptapi (Compost) System Comes with every installation
(often included with certain licenses), full GibbsCAM posts require specialized software.
| Problem | Cause | Fix | |---------|-------|-----| | Wrong arc direction | G02 vs. G03 reversed | Swap sign of arc center vector in post | | Missing G43 H value | Tool length offset not activated | Add G43 H + $tool_number in tool call block | | Spindle not starting | M03 missing | Check post logic: IF ($spindle_speed > 0) OUTPUT "M03" | | Coolant not turning off | M09 not output at end | Add M09 before M30 or tool change | | 4th axis unwinds incorrectly | Rotary axis short/long path logic | Set rotary_mode = 1 (shortest direction) | | Feedrate too high for tapping | G84 with feed = pitch × RPM | Use G95 (feed per rev) or rigid tapping M29 |
: Manually edit a sample G-code file with comments showing exactly what should change. Create a Pack and Go : In GibbsCAM, go to File > Pack and Go to bundle all parts, tools, and settings into a single : Email both the marked-up G-code and the file to your post department (e.g., CAMCO Support 3. Editing Tools While generic posts can sometimes be edited using