Loud noises by extruder stepper motor - can't load filament
Hi there,
that's a first for me, but maybe something simple/stupid.
I printed with Filaflex TPU 82a today and the extruder motor started making loud, stuttering noises halfway through the print.
I stopped & unloaded the filament. It was already tricky and seemed stuck. I tried to load standard PLA afterwards, but can't load the filament at all. The extruder motor always fights heavily. I can't see that the nozzle is clogged.
What should I check/test to get back to a working state?!
Best Answer by Eef:
The extruder is blocked. Maybe the TPU is pushed in/around the gears?
RE: Loud noises by extruder stepper motor - can't load filament
The extruder is blocked. Maybe the TPU is pushed in/around the gears?
We will do what we have always done. We will find hope in the impossible.
RE: Loud noises by extruder stepper motor - can't load filament
Thank you! That's what happened. But I couldn't see it at first as it was a single string which slipped beyond the gear and blocked it. I pulled it with a tweezers and it works afterwards.
Any tip how to prevent TPU from slipping/blocking? Never had this with PLA, ABS or PETG...
RE: Loud noises by extruder stepper motor - can't load filament
There's a good thread dedicated to printing with TPU that includes hints and tips for this exact problem.
Check it out at https://forum.prusa3d.com/forum/english-forum-original-prusa-i3-mk4-how-do-i-print-this-printing-help/printing-tpu-on-the-mk4/