Thanks so much for posting this. I went through your checklist, and the heater block screws were loose. To anyone reading this thread: Check your heater block screws before you tear your extruder out. Remove your nozzle, and there is a screw dead center behind the nozzle and two screws above it to the left and right. I tightened all screws and the problem was fixed.
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Wish i knew about that retightening after 200c. I had two of these hotends, both failed. The each unscrewed the nozzles during a print and the nozzle ended up encased in a solid blob of filament. So went back to fixed nozzle hotends.
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sto avendo lo stesso problema ed ho fatto lo stesso percorso. mi manca solo di cambiare lāestrusore. lāestrusore ti ĆØ stato cambiato in garanzia?
I think I have same problem with my P1S. Bambu PLA matte problem with first layer, can't fix
I have had very similar problem after software up date. With a 0.2 nozzle the first three layer the nozzle is bumping over the plat and layer 2 and 3, with a very large elephant foot. After that all seems OK. With a 0.4 nozzle only the first layer is bumping over the plate with a small elephant foot.
P.S. I got so frustrated at trying to fix it and Trying get help, I have side lined the printer. I tried to get a ticket but failed to find a relevant way.
I am one of those who went through the trouble of finding the right offset and changed my printer profile. Then when I started printing PLA and not PETG, of course it varied and I needed to start over.
I ended up adjusting the first layer flow rate instead of the height. I read up and eventually figured out that this might impact accuracy of the dimensions, tolerances, etc. I went back and did this for PETG and did many before and after calibration cubes and THEY WERE THE SAME.
So, given that printer settings apply at the printer level and not filament level, itās not ideal to have this āchangeā sit in the printer config which will need changing when using different filament types. It also is a PITA to debug the z-hight to get it perfect (canāt do them on the same printing run unless you modify gcode by hand). The first layer flow rate is super easy to dial in thanks to this print.
I would love to be proven wrong because I honestly have no clue how the z-height corresponds to the first layer flow and why that doesnāt mess up the rest of the model, but I do think the first layer is more accurate now that Iām not adjusting the z-height. No elephant foot.
This was it for me. Now I have perfect 1st layers again
i have had this problem for a long time.
my machine has been idle for a long time but i canāt solve it. the extruder sometimes clicks a bit when printing and the first layer is really messy. i have done everything but nothing helps.
i am now arranging maintenance but i still want to ask here. a video or photo will follow later.
out of the box i have that problem
and no i have everything done form the quick guide.
I have also tightened the 4 screws behind the nozzle