First layer adhesion on the right side of the bed plate
I have done many prints successfully, although, there is a specific area on the bed plate where the first layer or the brim is bad (see attached picture). It is on the right side of the bed plate. My sheet is cleaned with 99% IPA and the rest of the print seems fine. I was wondering if it could be uneven warming of the bed plate or it is something with the X axis mechanical pieces or something else? I am obviously new to 3d printing (I did read the guides).
Best Answer by Petzon:
Several people, including me have reported problems with squareness of Z-axis, I suggest a manual test of squareness by disconnecting power and manually move nozzle close to bed and manually move it along X-axis, if distance between nozzle and bed changes there is an issue with bed flatness or angularity of Z-axis. Be careful not to scratch the bed, keep some distance between nozzle and bed. IF Z-axis is not square one can use thin pieces of sheet metal (suggest cutting some from a soda can) and put them between Z-column and Y-alu beam. The software should catch problems like this, but as the software is new it for sure contain bugs
RE: First layer adhesion on the right side of the bed plate
I have something similar. But not as bad as yours. At the right side, i have slight very small holes between the lines. Thats on the first and sometimes following layers too. Sometimes (with the whistle) on the top layer too..
Followed completely the manual, looked here in the forum and somewhere else. i would expect, that the mesh bed level will do their task and i do not see something like that.
RE: First layer adhesion on the right side of the bed plate
@joerg-e
Yep, me too guys
Today has been my first day of testing my Mini, i did a couple od good benchys and the nut.
Decided to further my testing by using Prusaslicer to make a model for printing, i picked something that spanned about 90% of the bed (across the middle). It had a fair amount of support base at each side.
Bed was cleaned well and i started the print, very quickly i noticed that the print was lifting at the extreme right side (by the Z tower).
Could it be the bed is slightly cooler at this point ?
Anyone got any thoughts ??
Cheers
S
RE: First layer adhesion on the right side of the bed plate
Several people, including me have reported problems with squareness of Z-axis, I suggest a manual test of squareness by disconnecting power and manually move nozzle close to bed and manually move it along X-axis, if distance between nozzle and bed changes there is an issue with bed flatness or angularity of Z-axis. Be careful not to scratch the bed, keep some distance between nozzle and bed. IF Z-axis is not square one can use thin pieces of sheet metal (suggest cutting some from a soda can) and put them between Z-column and Y-alu beam. The software should catch problems like this, but as the software is new it for sure contain bugs
RE: First layer adhesion on the right side of the bed plate
I found a procedure for the Mk3S :
With a print object :
https://www.prusaprinters.org/prints/2591-bed-level-correction-calibration
Hopefully, this will be available for the Mini.
RE: First layer adhesion on the right side of the bed plate
Left to right is OK for me, but I need to figure something out for bed sloping down towards the front.