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Feed stops around heatbreak  

Feed stops around heatbreak

When I try to feed from, MMU2S or manually, the gears pull in the filament but then it stops, maybe around the heatbreak.
I've done a cold pull to clear anything out -- pulled out the hotend assembly and checked and replaced the PTFE tube, but nothing works.
During the cold pull, I can push the filament through the hotend and it comes out from the nozzle, but when I try to let the printer do it's own load, using the gears, the filament stops around 12mm into the hotend -- past the PTFE tube, in the heatbreak?

Is it the "step" in the heatbreak? Or could it be damanged?


Posted : 10/05/2022 8:45 am