I used Sunlu PLA. They suggest 200-230° and glue required if not heated or no glue and 60-80° bed temp.
Textured PEI plate.
As Bambu Lab recommends at least 220° to avoid blobs I used 220, glue and 60°. Result photo 1.
Assuming that the temp was too high and the filament did not have enough time to cool down I tried 200°, glue and 60°. Result photo 2.
Both times the door was slightly opened and the glass top lifted with small supports.
I could not continue the prints but had to increase the temp and start a new print so the bed got lowered and the nozzle/filament separated before I could cancel the print.
In the past I have often used a temp tower with my Prusa printers. I basically did the more expensive version of a temp tower here because after posting the thread I also tried 190, 180 and 230. Every time unfortunately with the same result.
Puzzling.
Although the filament works just fine on my Prusas I might try another filament or try slower speed.
both photos give the appearance that for some reason or another the printer either out right stopped at those locations for a considerable amount of time, min at least or perhaps when prints finish for some reason or another your extruder doesn’t home off the print while it cools.
Is your extruder spending alot of time there doing nothing or a pause or something?
That’s what I have been thinking of. I haven’t been able to detect anything (who likes to sit in fromt of the printer for 2 hours ). What I have tried now though is to print the same Gridfinity plate in “sporty” mode.No problems with the first plate. Just trying a second one.
That would not give the reason why the printer stops and glues but at least I get my project done.
@hgschnieder
Just to be sure, your print just stops in random spots and the nozzle will remain there right on the print until you do some actions remotely or on the printer? No error messages appear?
It’s rather odd if the nozzle would stay pasted to the print since pause commands or even a power brownouts usually results in the head being moved to the park position over the poop chute
The nozzle got stuck at different times during the several prints. If I should have a corrupt file I assume it would always happen at the same position. The card I am using right now is a Sandisk with lots of gcode files on it which all printed without a problem.
But I will definitely look into it if my present suspicion is wrong: I went through the Bambu Lab wiki and came across this entry: Homing Z axis failed - Heatbed cable tensioned | Bambu Lab Wiki . The cable could get stuck at different times during a print. I am just running my umpteenth attempt to print a Gridfinity frame. If again not successful I’ll try a different SD card.
). What I have tried now though is to print the same Gridfinity plate in “sporty” mode.No problems with the first plate. Just trying a second one.