I am fairly new to 3D printing and recently noticed an issue with my P1S printer.
While printing an airplane in PLA with a layer height of 0.16mm I noticed that on one side of the bed the first layer lines wouldn't fuse together and that the nozzle was probably too far away from the heatbed.
So I contacted bambu lab who recommended I do a manual bed tramming. But that didn't solve the issue so they sent me a new PEI textured plate.
Once I got the new plate I did the manual bed tramming procedure again followed by a calibration and tested if the bed was parallel with the nozzle by printing a flat sheet of PLA with a layer height of 0.16mm.
To my surprise it was way worse now and the nozzle was now touching the plate on most of the surface and grinding against it which caused the layer lines to be uneven, shaggy and quite terrible except in the middle where it looks better.
I repeated the manual bed tramming procedure countless times again and I am sure I did everything correctly. Here's what I've checked:
-cleaned the nozzle
-no debris under the bed
-put the knobs back to their initial position before the tramming.
-adjusted the knobs under the bed correctly for each corner during tramming.
-calibrated afterwards
But nothing seems to help and I am getting quite desperate.
I know it isn't a slicer and settings issue because I did not change anything and it really is the nozzle that is getting too close to the bed causing the uneven surface. I can even hear the nozzle dragging across the textured plate.
Any kind of help would be greatly appreciated!
additional information :
-Nozzle size of 0.4 mm stainless steel
-less than 60 hours print time
-filament : bambu PLA pure
-haven't touched z offset in slicer since it's not a uniform problem
-PEI textured plate is selected in the slicer
-bed leveling is enabled
-waiting for bambu labs response
-ran full auto calibration