Axis_Comp having no effect
- CNC4Life
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04 Sep 2025 00:36 - 04 Sep 2025 00:42 #334380
by CNC4Life
Axis_Comp having no effect was created by CNC4Life
I'm trying to axis comp a machine with a Renishaw ML10 Interferometer. Unfortunately no matter what comp type or file formatting I can come up with I cannot get the system to take effect. The machine is repeating +/- .001mm on every step of the run.
I've been working on this for days and had no luck. I also can't get any feedback from HALSHOW that mentions it in effect or a component related to compensation. My understanding this a rolling backlash table to linuxcnc, hower the values never change. The man pages are extremely sparse, but strait forward. Name a file, stuff it with (Target) (POS Move) (Neg Move) and select a type 0 or 1.
Please help! I offer cookies of all types.
I've been working on this for days and had no luck. I also can't get any feedback from HALSHOW that mentions it in effect or a component related to compensation. My understanding this a rolling backlash table to linuxcnc, hower the values never change. The man pages are extremely sparse, but strait forward. Name a file, stuff it with (Target) (POS Move) (Neg Move) and select a type 0 or 1.
Please help! I offer cookies of all types.
Last edit: 04 Sep 2025 00:42 by CNC4Life.
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04 Sep 2025 00:40 - 04 Sep 2025 00:41 #334381
by CNC4Life
Replied by CNC4Life on topic Axis_Comp having no effect
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Last edit: 04 Sep 2025 00:41 by CNC4Life.
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- PCW
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04 Sep 2025 02:45 - 04 Sep 2025 17:00 #334383
by PCW
Replied by PCW on topic Axis_Comp having no effect
Just a guess, but I think your screw compensation table is backwards:
"Compensation files must start with the smallest nominal and be in ascending order to the largest value of nominals"
"Compensation files must start with the smallest nominal and be in ascending order to the largest value of nominals"
Last edit: 04 Sep 2025 17:00 by PCW. Reason: sp
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- andypugh
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04 Sep 2025 16:43 #334416
by andypugh
Replied by andypugh on topic Axis_Comp having no effect
If the comp table is backwards then the interpolator function will only ever read the first value, so you will get a fixed offset, and no apparent compensation.
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