Inconsistent z-offset too high on new prints
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Hello!
I have a problem since some time. I thought I'm seasoned on 3d printer issues but this one got me.
Printer: blv mgn based custom core xy, I made a lot of part for it myself. It is running on duet2 wifiSymptom:
I'm leveling the bed on the 4 corners manually then starting a print. Even tho I have mesh bed leveling seemingly I still have to do it. Print goes ok. Printer turns off, I don't need the printer for a week.
I turn on the printer, need to print small stuff on the center so I skip the manual leveling. I have mesh leveling anyway. Mesh level goes down, print starts and it prints 2-3mm above the bed after successful mesh leveling. Huge margin of error. It is not the "height is slightly off" it literally prints in the air. The deviation in my 350mmx350mm bed is something like 0.7mm, even if my -i don't know- mesh axes are wrong the height difference is still too much.This is completely beyond me how can it happen because the bltouch measurements are consistent. It is an original one.
Best I can do is share as many settings and data with you as I can and please if anyone has any idea what is happening share it with me.config.g
sample gcode
homeall.g
mesh.g
imgur gallery with images and video -
Is your Z axis binding?
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@Phaedrux you mean mechanically? i didnt notice such a thing. When it gets going it works perfectly
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I notice you're using conditional gcode logic in your mesh.g. How you tried with a very basic setup to see if there is a bug or something in your logic there?
How does the mesh look in the viewer in DWC?
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@Phaedrux
i took the big gun, took apart the Z and checked manually for any mechanical error, there was none. restarted all the calibration for movement and now it seems to be ok. I have no idea what was the problem tho. I consider it solved. Thank you for your help. -
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undefined Phaedrux has marked this topic as solved
