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TPU curls up in extruder
I'm trying to print TPU 95A with the Core One L. I was able to get exactly one print out working and now everytime I print TPU after some while I get loud clicking noises from the extruder and when I stop the print and open up the extruder side I am greeted with some variant of this:
The filament curls up and then gets into the gear and nothing comes out of the nozzle anymore. The filament is dry, I already tried losening the idler and I'm using a modified Generic Flex profile with disabled retraction. I'm not sure why that one print worked but right now everything TPU is just ending up with curled filament. What am I doing wrong here?
Posted : 27/05/2026 8:15 pm