Duet 3 BLTouch probing issues
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@Vampora said in Duet 3 BLTouch probing issues:
M558 P9 C"^io7.in" H5 R1 F120 T6000 A5 S0.02 B1 ; Define the bltouch input on io7.in
can you change the H5 to H6 and see if the result changes?
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I actually just tried bumping it to 10 and this is what I got.
It just changes everything to -10 instead of -5
M98 P"0:/macros/Probe_Test"
G32 bed probe heights: -10.000 -10.000 -10.000 -10.000 -10.000 -10.000 -10.000 -10.000 -10.000 -10.000, mean -10.000, deviation from mean 0.000 -
this suggests there is a problem with your bltouch.
how many probing of the bed does it actually do when you run the macro?
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It does 10
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is there an error in the console?
this suggest that the bltouch is already triggered.
whats the z value in the ui? -
What I don't understand is the probes work just fine on my other railcores with duet 2 boards.
The first time it probes z it will set the z to 0.75 which is the same as my offset. The next time it probes it will say -4.25, and the 3rd will also say -4.25
When the command is given to raise to Z5 it says 5.75.
Would a video help shed light on it at all?
I usually do get random sporadic errors saying that say:
G29
Error: Z probe was not triggered during probing move -
This post is deleted! -
this suggests that there is a wiring problem. maybe a bad crimp on the extension cable.
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ill post a video of what it does on zhome
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Im uploading a video of what the probe does as well on that side. I don't know it looks normal to me.
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if we do think it is the wiring though i can swap it out. I'm starting to wonder if i shouldn't just go a different probe route and do away with the bltouch all together.
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@Vampora said in Duet 3 BLTouch probing issues:
M558 P9 C"^io7.in" H5 R1 F120 T6000 A5 S0.02 B1 ; Define the bltouch input on io7.in
can your remove the A5 and try again
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Same thing other than it is only probing once now instead of multiple times in each spot.
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to me it sound like a problem with the bltouch, but non i have seen before.
is there a different probe you can test? like a capacitive sensor or something? -
i have an IR sensor i could pull off another printer if need be. That is it otherwise they are all BLtouches.
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want me to pull it and try to set it up?
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unless someone else has another idea, i would try the ir probe.
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what if i just hot glue a micro switch on the bottom so it triggers? would that be the simplest?
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@Vampora
that would also work as a simple probe -
i think i will try that. I dont really want to pull apart my other printer to get to the IR if i dont have to.