Strange behavior during probing in 3.3 (solved in 3.4b3)
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That is rather strange. Can you try adding M400 between your G30 commands in bed.g and see if that makes a difference?
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@phaedrux Unfortunately that made no difference. Still drops Z in the during Y moves.
One interesting thing... If I put an R0.5 in the M558 command it does not move Z until .5 seconds after it started moving. If I up that to R1 it completes the Y move then probes (it takes just about a second to move from point to point). This tells me that when it's traveling along the Y axis it's also trying to probe Z. Not sure why in the X axis it doesn't do this.
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So, I just changed the axis maximums to 300 and the bed.g to a 300 on the Y axis as well. That fixed it. I don't know why, and I'm attempting to play with it to see what exactly happened. I'll report back if I can determine what is going wrong.
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Ok so I think it's an issue with the probe offset. The maximum being 350, the probe could not hit that. The maximum should be 375 and the bed.g should be 350. If I'm figuring this correctly. IMHO could the 3hc be throwing an error that we don't see, which could cause the movement to be complete?
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Would you be able to test this in standalone mode?
https://duet3d.dozuki.com/Wiki/Getting_Started_With_Duet_3#Section_Running_in_standalone_mode
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@phaedrux I will see if I can tonight.
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@phaedrux Using the exact same config file in standalone mode. It behaves the same. Side note I was able to fix it on a G32 but not a G29. It may not be an issue because it does not have as far to go, but I feel it could still give false readings. I'll keep playing.
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While you're in standalone mode would you be able to test 3.4 beta 3 as well? Simply because it would be easiest to go back and forth while in standalone mode.
https://github.com/Duet3D/RepRapFirmware/releases/tag/3.4.0beta3
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@phaedrux Ok yeah, that took care of it. All is working! Does that mean you know what the issue is?
UPDATE: I hooked it back up to the Pi and updated to the unstable branch. We're still looking good!
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Glad that's fixed it. Please keep up with the 3.4 releases as they come on the way to the final release just to confirm that it stays fixed.
