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filament keeps jamming in PTFE tube extruder hotend  

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iDebugger
(@idebugger)
New Member
filament keeps jamming in PTFE tube extruder hotend

Hello,
after couple days using new 3d printer kit MK3 im asking for help. Standard PRUSA PLA (included in the Kit) jam between extruder tube and bearings. (maybe and inside the tube too, but idk.)

i was checked forum for the same problem but dont found exactly my problem.

i tried to heat nozzle to 250 and then push a little bit filament inside, but it not help, after it i tried to heat nozzle to 295 temp. bu the same. From nozzle filament running out but put filament inside the hot end - i cant. So what i did - get out hot end by instruction and waiting for help because i dont found instruction how to put out PTFE tube from E3D https://manual.prusa3d.com/Guide/5.+E-axis+assembly/510?lang=en

please help what to do.

forum dont let me insert more than 3 photo, so other photo in my cloud here:
https://1drv.ms/f/s!AuFYCH8snAwSiOVxZobHejwoUhi_Ww

Publié : 15/07/2018 11:14 pm
Rosparovac
(@rosparovac)
Estimable Member
Re: filament keeps jamming in PTFE tube extruder hotend

This help me:
https://www.thingiverse.com/thing:2867249/apps

University: MK2S upgraded to MK3 with MMU2.0
Home: MK3
Materials: ABS; ASA; PETG; PET; PLA; Nylon; Nylon Carbon; CPE;
SW: Freecad 0.18; Slicer PE And still generating more troubles than whole forum together.

Publié : 16/07/2018 11:02 am
iDebugger
(@idebugger)
New Member
Topic starter answered:
Re: filament keeps jamming in PTFE tube extruder hotend

Dear Rosparovac,

thank you for your reply, ill print this when i could. At this moment i cant use my printer before the problem with the filament inside tube and 3DN will be solved.

anybody pls help, lf your advices..

repost photos from my cloud (URL was in my first message) here. Doing the forum limitation only 3 photo could be insert.

Publié : 16/07/2018 6:08 pm
Rosparovac
(@rosparovac)
Estimable Member
Re: filament keeps jamming in PTFE tube extruder hotend

And heating to 285°C and pushing filament wont help? NExt step is to use oven and heat all to 250 (or more )°C maybe use several oven cycles.

University: MK2S upgraded to MK3 with MMU2.0
Home: MK3
Materials: ABS; ASA; PETG; PET; PLA; Nylon; Nylon Carbon; CPE;
SW: Freecad 0.18; Slicer PE And still generating more troubles than whole forum together.

Publié : 16/07/2018 9:51 pm
iDebugger
(@idebugger)
New Member
Topic starter answered:
Re: filament keeps jamming in PTFE tube extruder hotend

Dear Rosparovac,

its safe to put E3D hotend with wires and tube inside oven and heat to 295?

Publié : 17/07/2018 10:11 pm
bobstro
(@bobstro)
Illustrious Member
Re: filament keeps jamming in PTFE tube extruder hotend

Your problem sounds like this one and this one. Before you go disassembling everything, read through the solutions there. The trick if filament is stuck below the extruder and above the hotend is to heat it up, remove the nozzle and poke your 1.5mm wrench up to push the filament up to where you can grab it out of the PTFE tube with pliers. The details are in the linked thread.

My notes and disclaimers on 3D printing

and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan

Publié : 17/07/2018 10:16 pm
Rosparovac
(@rosparovac)
Estimable Member
Re: filament keeps jamming in PTFE tube extruder hotend


Dear Rosparovac,

its safe to put E3D hotend with wires and tube inside oven and heat to 295?

Teoreticaly yes practically i would not try it. You have to disassemble everything, but not bad solutien is linked up here.

University: MK2S upgraded to MK3 with MMU2.0
Home: MK3
Materials: ABS; ASA; PETG; PET; PLA; Nylon; Nylon Carbon; CPE;
SW: Freecad 0.18; Slicer PE And still generating more troubles than whole forum together.

Publié : 17/07/2018 10:25 pm
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