I got tired of the paper method and adjusting the screws by the auto-leveling results as I could never get them to be consistent. Now I used mechanical level indicator and got these consistent values indicating that the bed is tilted to the right/left?
To my suprise it can actually print something like this but what would cause these values? My suspicion is that the Z axis is sagging but I would like to get some opinions before completely reassembling the printer.
Wouldn’t the simplest explanation be that the left side of the bed should be lowered a little?
It is already at the lowest it can be but I’ll try raising the right side again
I’d suggest loosening all the bed screws as much as is practical and then redoing the mesh. That way you’ve got lots of room to lower high spots.
If the tilt is too extreme, you might also be dealing with a sagging gantry. I’m not familiar with your printer model so I don’t know how likely that is or how you’d go about fixing it though I’m afraid.