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[BUG] BLtouch Mesh negative Z on May Release #1006
Comments
How about your Z-Offset? is that different between build versions? |
Maybe related to #976 |
Possible solution: #1021 |
Hey, sorry for the radio silence, this indeed fixes the issue. Thank you very much
|
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. |
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Did you test with a precompiled firmware?
Yes, and the problem still exists.
Bug Description
Hi, I have recently updated from 20230312 to 20230522 and found myself having difficulties leveling and tramming my bed.
At the start I though I bent something but no. Mesh building (9x9 and 5x5) always came up as almost perfect level around the center (sorry no images, but I can reinstall 20230522 to get some if needed), between 0.01 and -0.02 but 3 probe points away from the center (on a 9x9) would go to -0.10 and in the farthest points, -0.20. To make double sure I probed my glass bed and even the bare metal, always "deep" negatives on the same probing points
I downgraded back to 20230312 without touching the knobs or even leting the bed cool down, meshed, and the problem was no more. with a mesh running around -0.01 and 0.07, normal values for my printer.
Bug Timeline
New issue, since installing 20230522
Expected behavior
Mesh building results to be consistent between versions
Actual behavior
Mesh on 20230522 with big -Z bias on outer edge of bed
Steps to Reproduce
Starting on 20230522
Version of Professional Firmware
Ender3V2-422-BLTUBL-MPC-20230522B
Printer model
Creality Ender 3V2
Electronics
Board 4.2.2
Add-ons
Original BL Touch
Bed Leveling
UBL Mesh
Your Slicer
Cura
Host Software
Octoprint (but tested on the LCD)
Additional information & file uploads
No additional changes where done to the printer
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