3DPrinting

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Have you ever seen this type of print failure? (lemmy.world)

submitted 2 years ago by nucleative@lemmy.world to c/3dprinting@lemmy.world

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Pretty sure I'm having heat creep up the Bowden tube, as it's getting jammed a few cm back from the hot end and then can't push the filament any more. When I get it out there's a little molten bulb at the filament.

In this fail, I think it jammed as usual and the extruder found a way to keep going.

I tried turning down the hot end from 215 to 200 and it's still failing. My cooling fan is running at 100%.

This is the third time I've had this print fail at about this layer, around 1 hour into what will be a 26 hour print.

Any ideas?

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[–] al177 1 points 2 years ago

Could just be crud in the nozzle. Do a few cycles of cold pull.

Is your hotend all-metal? If not you may have a deformed PTFE liner pinching the filament path.

Last, check that the fan over the heatsink on the hotend is running.