Another offset probing request
- Deveraux
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I figured it was implemented that way because of efficiency as offset probing does add quite some time to a sheet with many pierce movements. But all in all it was a game changer for my machine in terms of reliability and consistency of the probing thus resulting in better cut Quality.
Once this last error is resolved i can begin to finetune everything (z height, probe height) to reduce cutting time further.
Anyways thanks a lot yet again.
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- phillc54
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You will need to rename the existing component then install the new one.
Open a terminal and assuming the new plasmac.comp is in ~/Downloads:
cd ~/Downloads
sudo mv /usr/lib/linuxcnc/modules/plasmac.so /usr/lib/linuxcnc/modules/plasmac.so.old
sudo halcompile --install plasmac.comp
sudo apt install linuxcnc-uspace-dev
There is an additional hal pin named plasmac.offset-probe-mode, the default value is 0 which keeps the probing as is, setting it to 1 should inhibit Z axis motion until the probe offsets are cleared.
Hopefully this will work for you.
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- Deveraux
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But i dont see the anything attached to your post where should i look for the file?
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- phillc54
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- Deveraux
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Thanks ill try it out when im in the shop tomorrow morning and i will report back.
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- Deveraux
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i set the Halpin in the custom hal file.
(however 0 or 1 makes no difference)
with the component installed the torch moves to x y offset, the cylinder fires then the z axis is deactivated. (Probing cannot be completed since the z axis never moves down and probes. ) the intended way was to deactivate the z axis after ohmic signal is received.
normal probing with halpin set to 0 has the same behaviour so i removed the component again.
hope you can help
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- phillc54
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I don't understand why, that is exactly where I made the changes, before Z moves to zero height after probingwith the component installed the torch moves to x y offset, the cylinder fires then the z axis is deactivated. (Probing cannot be completed since the z axis never moves down and probes. ) the intended way was to deactivate the z axis after ohmic signal is received.
normal probing with halpin set to 0 has the same behaviour so i removed the component again
I also don't understand why this happens.
I can only test this on a sim and it seems OK. I will try to cobble an offset probe together for my plasma table and do some testing. You may have to bear with me for a while.
How far below the torch nozzle does your probe extend?
Edit: Could you confirm that you are using master branch and not 2.9
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- phillc54
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- Deveraux
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I can only imagine how hard it is to program features/modify them without even having the hardware itself...
Im grateful for your effort.
EDIT:
Well unforunately same as the first component the cylinder extends z moves to probe height then nothing happens the probe doesent move to the offset either.
If i bridge the contact ohmic probe movement does end however.
Probe height is 35mm, ohmic offset is -14mm
x and y offset are -45mm and -15mm
shall i post my config as well ?
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- phillc54
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That makes no sense at all, the only change is not moving to Z zero.Well unforunately same as the first component the cylinder extends z moves to probe height then nothing happens the probe doesent move to the offset either.
Do you have a valid Probe Speed?
Yes please.shall i post my config as well ?
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