Hi all, I have an object that I’ve printed twice that the printer bugs at the same layer… I get a knocking noise, the extruder grinds the filament, and nothing comes out. The funny thing is that I printed one with pla and one with petg, so different Gcode and temperature, but still the same layer…
It could be heat creep. After the printer runs for a while the heat moves up the hot end and causes the filament to jam above the nozzle. The bumping noise and grinding of the filament is a classic symptom of this.
What type of printer?
Boden or direst drive?
Ender 3 v2, so bowden
I have the same model and had the same problem. If it is a heat creep problem then the fix in the video which solved my problems and should fix most other hot end difficulties. Everything works fine on my printer since I did it.
I’ve actually already done that fix, should I open up the hot end assembly and check it’s still ok?
Yes it could be a jammed nozzle. It is a good idea to change out the short piece of Capricorn tubing in the hot end periodically, it will go bad over time.
I pulled out that short piece of tubing but it was fine, I’ll see how the next print goes
