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Filament stuck in the Hot-end


The filament has probably been a bit overheated (which is what you get with the -too high- default temperatures). The result is a tiny blob at the end of the PTFE tube making it impossible to move the filament either ways.

Blob.jpg

Cure :

Take the head apart : remove the screws holding the PEEK tube (one from above and the other from the underside).

Upper screw.jpgLower screw.jpg

Cut the filament above the PEEK tube.

Cut filament.jpg

Unscrew the PEEK tube from the heater block : you should see the blob.

Remove peek.jpgShow blob.jpg

Cut it off, then heat the head and push the filament with a bit or hex wrench. If needed you can clean the nozzle with a guitar string.

Clean nozzle.jpg


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