[BUG] Bed leveling issue

[xkzl]

Hello,

I have been using my Anet A8 equipped with a BLTouch and Marlin 1.1.8 for quite some time now. I recently switched to version 2.0.6.1 (and tried 2.0.X bugfix last night)

The bed leveling does not work for some reasons. So I tried to debug afaic.
I attached the comparison of the bed leveling using 1.1.8 and 2.0.6.1

BedLeveling.1.1.8.txt
BedLeveling.2.0.6.1.txt

For this test I used the default Anet A8 configuration available in the repository + BLtouch activated, but I also attached my own configuration files +/- SD support to get enough space. Anyhoo this just shows that my BLtouch and returned information are working

Configuration.1.1.8.txt
Configuration.2.0.6.1.txt

From the log files I attached I observed an timing issue related to BLtouch and this only happens in the last versions. Can someone confirm this issue ?

[boelle]

Please test the bugfix-2.0.x branch to see where it stands. If the problem has been resolved then we can close this issue. If the issue isn't resolved yet, then we should investigate further.

[xkzl]

I just compiled and uploaded the last bugfix branch and the issue is the same.

[daleckystepan]

You can try to experiment with #define ENDSTOP_NOISE_THRESHOLD 2, you can try 5 for example.

[xkzl]

Hi, I tested it and it creates a weird shift along z while printing. The y axis get shaky while doing bed leveling but at least it starts 2 measured points. I just want to stress that the firmware 1.9.X is working, so I doubt about an hardware issue. Cheers, Marco

…

Le 15 sept. 2020 à 16:41, Štěpán Dalecký ***@***.***> a écrit : You can try to experiment with #define ENDSTOP_NOISE_THRESHOLD 2, you can try 5 for example. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#19188 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AI7NRB52QTKIWMTF4BR2FYLSF54I5ANCNFSM4QO5RS3Q>.

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[xkzl]

Version 2.0.7.2 is able to run the bed leveling until the end but which wasn’t the case before (stop after 2,3 points)
But then the returned matrix is still empty. I will try to provide some additional information once I activate the debug mode again

[github-actions]

This issue has had no activity in the last 30 days. Please add a reply if you want to keep this issue active, otherwise it will be automatically closed within 7 days.

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.