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User experiences heat creep and print failures at 230-235C with PLA, despite the hotend being advertised up to 280C. This prevents printing structural parts at optimal strength and makes the advertised temperature range unreliable.
Basically the title of the post. Pictured above are the last 2 prints on the 0.6mm nozzle. Im printing a structural part out of PLA that the spool manufacturer recommends to be printed at 235C, which is also where in my testing i get the most strength and best layer adhesion. For 3 prints in a row already it has failed at roughly the same height, roughly 1 hour into the 3 hour print. This is on a 0.6mm nozzle. An earlier attempt with a 0.4mm nozzle also failed at a slightly similar height. I have done the calibrations in orca slicer and have done so for both the 0.4 and 0.6 nozzle. Ive done multiple cold pulls to make sure im not running into a partial or full clog. Ive tried different infill types for every print. The filament has been dried and i have a small sponge dust filter to remove potential dust from the material. To add insult to injury, a few weeks ago i replaced the left side fan as it died. Got a fan that spun to a higher rpm and had more airflow. Been printing just fine on temps in the 215-225C range. If the printer is going to heat creep at this temperature, why do they even advertise the hotend can go up to 280\*C? Any input is appreciated.