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Clearing broken filament from Prusa core one+ (lemmy.world)

submitted 4 days ago by earlier_riser@lemmy.world to c/3dprinting@lemmy.world

11 comments fedilink hide all child comments

I bought the assembled version of the Prusa core one+ (gen 2). Got through the setup and calibration until hitting a (literal) snag when attempting to calibrate the filament sensors.

The assembled printer is supposed to come with a bit of orange PLA filament already loaded, sticking out of the end near the spool holder. I can see the orange filament in the PTFE tube, but the bit that's supposed to stick out seems to have snapped off. Telling the printer to unload the filament doesn't do anything.

I'm coming from a BambuLab A1 Mini, so I'm very much in the printing side of the hobby and not the printer side of the hobby, and I get a bit lost when the first step seems to be to completely disassemble the business end of the printer.

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[–] BillDaCatt@lemmy.world 3 points 4 days ago (4 children)

Can you manually heat up that hotend and then advance the feed while pushing in some new filament by hand? If you use a different color, you will be able to tell when the old color has been purged.

[–] earlier_riser@lemmy.world 1 points 4 days ago* (last edited 4 days ago) (1 children)

Can I do that without calibrating the filament sensors? Sorry if this is a stupid question.

[–] BillDaCatt@lemmy.world 4 points 4 days ago (1 children)

You should be able to. You will probably have to exit out of the calibration setup. but I don't expect that is much of a big deal.

Also, after reading some of the other comments here, I would suggest looking closely where the Bowden tube enters the hotend. (see arrow in the linked picture) There is a fitting right there that will allow you to remove the tube. Push the black ring down and gently pull up on the tube. It should pull right out. Then it's a simple matter of, heating up the hotend, grab the broken filament with your fingers or a pair of pliers, and perform your filament removal step. Replace the tube once the filament has been removed.

[–] trailee@sh.itjust.works 1 points 3 days ago

This is a very good point that I neglected. The tube can be pushed in to connect, but must be carefully released from the fitting.

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