Filament broken inside the PTFE
The filament broke inside the PTFE tube. What is the best thing to do.
I pulled out the PTFE at both ends and tried to insert another filament to push the broken filament. I was able to get a few inches out, but not all of it, the filament broke again.
There is still about 50cm of filament stuck, probably in several pieces. If I push with a filament nothing comes out from the extruder side and if I insert the filament on the extruder side, the broken filament blocks the insertion.
Apart from changing the PTFE as if I had a common Ender3, what can I do? Which PTFE should I buy? Disassemble the head to avoid the PTFE to be bent? Any other solution?
RE: Filament broken inside the PTFE
i think you already did, but detach the ptfe from the festo fittings, then try and try again to push (towards the extruder). Try using a stronger filament to push or a wire (like a straightned crutch with blunt tip) .
I have this issue with a esun/sunlu crappy pla filament that constantly break when i leave it for one day or two inside the tube.
I'm not an expert. Ma parlo anche italiano 😉
RE: Filament broken inside the PTFE
Thank you Antonio. I did it but nothing helped. Finally, Prusa has sent new PTFE and now everything is OK. 😎
Incredible but true I never could extract the blocked filament. Remaining filament and pool is in my trash. 🤐
RE: Filament broken inside the PTFE
Have you contacted the people you bought the filament from. I bought some filament from MaterHackers last year. It stuck in the PTFE tube for my Creality. I sent them pictures of the problem and after a weeks negations they sent me a new spool of filament.
RE: Filament broken inside the PTFE
Hi Henry, It's a shining filament bought 2 years ago from Hello3D. Difficult to say if the problem comes from my storage or the making, even I unsealed the roll only one week before.