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manual bed leveling

Posted by ale211734 
manual bed leveling
August 09, 2023 11:36AM
Hello,
I compiled marlin 2.1.x and flash on my ender 3 v2 with manual bed leveling on marlin gui.
I can do a manual level from lcd screen ui, and get the mesh values from command M420 V.
If I send the sequence of commands:
G28
M420 S1
G1 X150 Y150 F600
I expected to saw some
z axis compensation but I saw no z axis movement. I don't understand why.
I tried to change M420 Z0 but nothing change
,
I enable RESTORE_LEVELING_AFTER_G28, LCD_BED_LEVELING, PROBE_MANUALLY, MESH_BED_LEVELING, and change the GRID_MAX_POINTS_X to 4.

Thanks in advance
Re: manual bed leveling
August 14, 2023 09:35AM
Usually the Z compensation movement is too small to be see by the human eye. Keeping a finger on the Z belt/leadscrew is a better way.

Perhaps leveling isn't turned on. What does M420 V3 show?
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