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Ignore probe during cut
5 years 2 months ago #217994
by mariusl
Regards
Marius
www.bluearccnc.com
Ignore probe during cut was created by mariusl
I have a proximity sensor as probe connected to the ohmic probe input. It works well but I get ohmic probe trips during the cut. The probe does sense correctly when this happens. I would like to disable the probe during the cut and then re-enable before the next pierce.
I was thinking to an and2 and connect the ohmic-enable and the torch-on signals to the and gate and route the output of the and2 to the ohmic-enable signal.
Will this make trouble in any other area of use?
I was thinking to an and2 and connect the ohmic-enable and the torch-on signals to the and gate and route the output of the and2 to the ohmic-enable signal.
Will this make trouble in any other area of use?
Regards
Marius
www.bluearccnc.com
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5 years 2 months ago #217998
by andypugh
Replied by andypugh on topic Ignore probe during cut
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5 years 2 months ago #218000
by mariusl
Regards
Marius
www.bluearccnc.com
Replied by mariusl on topic Ignore probe during cut
I think my problem is not the same. It would seem that PlasmaC actually looks at the probe input while cutting and will pause when it is tripped. I dont want this to happen as my probe is very close to the material. I only have about 10mm sense length
Regards
Marius
www.bluearccnc.com
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5 years 2 months ago #218001
by andypugh
Replied by andypugh on topic Ignore probe during cut
LinuxCNC looks at the probe input, and stops if it triggers on a non-probe move.
I think that the component there blocks the probe input if the motion type is not "probing" so prevents this.
I think that the component there blocks the probe input if the motion type is not "probing" so prevents this.
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5 years 2 months ago #218006
by mariusl
Regards
Marius
www.bluearccnc.com
Replied by mariusl on topic Ignore probe during cut
Is was hoping to do that with built-in components as I dont have a dev install on the customers machine.
Regards
Marius
www.bluearccnc.com
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5 years 2 months ago #218007
by andypugh
Replied by andypugh on topic Ignore probe during cut
OK, in that case you would need to convert motion.motion-type to a float then use wcomp to see if it is close to the number that corresponds to probing. Then use and2.
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5 years 2 months ago #218013
by rodw
Replied by rodw on topic Ignore probe during cut
Plasmac has a probe enable signal that becomes active during probing. You may be able to and2 the probe input with that. Should work.
When I had this issue pre-plasmac, I used one of the digital outputs and placed M62-M65 around my probing routine to use and2 with.
When I had this issue pre-plasmac, I used one of the digital outputs and placed M62-M65 around my probing routine to use and2 with.
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5 years 2 months ago #218028
by phillc54
Replied by phillc54 on topic Ignore probe during cut
You should be able to use a and2 as you suggested without compromising anything. Connet plasmac.ohmic-enable to an and2 input then connect your probe hardware pin to the other and2 input then connect the and2 output to plasmac.ohmic-probe .
@andypugh, PlasmaC is a bit (lot) odd in that it doesn't use the motion.probe-input or G38 commands for probing, it does probing within the component.
@andypugh, PlasmaC is a bit (lot) odd in that it doesn't use the motion.probe-input or G38 commands for probing, it does probing within the component.
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5 years 2 months ago #218042
by mariusl
Thanks a lot mate.
Regards
Marius
www.bluearccnc.com
Replied by mariusl on topic Ignore probe during cut
I thought I had the same problem on a machine before and could not remember how I solved it. Now that you gave the solution I realized that was exactly how it was solved. (I think Covid zapped my brain)You should be able to use a and2 as you suggested without compromising anything. Connet plasmac.ohmic-enable to an and2 input then connect your probe hardware pin to the other and2 input then connect the and2 output to plasmac.ohmic-probe .
@andypugh, PlasmaC is a bit (lot) odd in that it doesn't use the motion.probe-input or G38 commands for probing, it does probing within the component.
Thanks a lot mate.
Regards
Marius
www.bluearccnc.com
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