/diy/ - Do It Yourself

howdy
i'm trying to print a case cover in petg
its 10 x 3 x 0.11 "
i already have the same piece printed before
same alignment same settings and so on
the first thing is i cant get it to stick to the bed if i print faster than 20mm/s
during printing on layer 5 and higher the individual lines start to warp and not stick anymore which leads to a chunk of material around the nozzle clogging it
i spend a hour doing auto bed leveling and adjusting the bed screws, the last two measurements were like this :
0 1 2
0 -0.055 +0.050 +0.010
1 +0.020 +0.017 -0.063
2 +0.007 +0.052 -0.030
Bilinear Leveling Grid:
0 1 2
0 -0.057 +0.067 +0.010
1 +0.032 +0.017 -0.052
2 +0.005 +0.048 -0.030

i get a perfect brim measured the ones from the failed prints and it was like 90% of the measurements at 0.2mm layer height

now i print the brim and it starts to print the first layers of some screw holes and other connections in the part but they dont stick
it prints the circles but after two or three revolutions the material sticks to the nozzle and just gets ripped off also sticks to the nozzle and i cant get it off because the printhead is too bulky
if i widen the gap with babystepping the z axis, filament doesnt even stick when printing the skirt , its just like thin round strings and it barely sticks when printing straight (always gets dragged in the corners)

i think i am getting crazy just a week ago i printed the same material same manufacturer at 75mm/s

the only thing i did was put lock nuts around the bed leveling screws so they wont turn themselves when turning the adjustment wheel but this cant be it or am i missing something ?
i mean i leveled the bed to the best of my abilities and the layer height is cool but what am i skipping here
pls no bulli