[Extruder jammed] Can't Unload Filament / "Click" sound
Hello,
It's my first problem with my printer. I have already read in some forums some possible causes and solutions, but I also want to ask to understand more and not do something that could damage more things of the printer. I have not been able to print for almost a week 🙁
After finishing a printing perfectly, with a PLA of Fillamentum, my printer does not unload the filament and makes a repetitive noise like a click. I guess there is a jam, and I would like to know how to fix it, and if I have to disassemble the extruder ... How I do this step by step without damaging anything else?
I am new in the 3D printing world so I'm still knowing certain terms.
As soon as I can, I'll upload photos / videos of what happens to me.
I hope someone helps me
Thank you
PS: sorry my English
Re: [Extruder jammed] Can't Unload Filament / "Click" sound
Updated with a photo
Re: [Extruder jammed] Can't Unload Filament / "Click" sound
I can see in your photo that you have managed to unload the filament.
Is it when you feed in the new filament that you are having trouble?
Bear MK3 with Bondtech extruder
Re: [Extruder jammed] Can't Unload Filament / "Click" sound
How did you solve this ? I have the same problem after the first printing, after I assembled the printer 😥 😥 😥
I haven't managed it by now .....
Re: [Extruder jammed] Can't Unload Filament / "Click" sound
Most important: Do not panic. I had the same thing happen to me early on. Just work through the problem and all will be fine.
Looking at the 2nd picture, I think I see a bit of filament in the PTFE tube that feeds into the hotend. In my case, some filament had become jammed in there, above the melt zone so it couldn't be squeezed out, but pulled in far enough that I couldn't unload it. The basic process I used was:
1. Loosen the bondtech extruder screws (it looks like you've done this).
2. Verify there is no stray filament wrapped around the bondtech gears (again, looks like you've done this, but be sure to inspect from both sides).
3. Heat up the nozzle to a normal print temperature.
4. Try to manually push some filament in from the top with the mechanism still loose. With any luck, the loose filament will move down and ooze out the nozzle. Verify it flows normally. If so, you're done.
5. If the filament doesn't ooze out, remove the nozzle carefully while still heated. CAREFUL: You want to support the heater block WITHOUT TWISTING as you do this. There are handy kits with a wrench for the heater block and a nice screwdriver-type nozzle socket so you can remove it without being burnt.
6. Push a narrow (~1.5mm) wire up through the nozzle hole in the heatblock. You may have to fish out some old plastic in the heatblock as there's no pressure to force it out. Try to gently push up and see if you can push stuck filament up out the PTFE tube in the extruder mechanism below the gears. If a bit of filament pops up out of the tube, congratulations! Pull it out with pliers and try reassembling and printing again.
7. If this doesn't work, you can try another nozzle just to make sure that's not where the clog is.
This was scary to have happen the 1st time, but now it's not a big deal. Hopefully, you've got the tools needed handy. I was lucky enough to have ordered them ahead of time. The good news is that you'll now be confident doing nozzle swaps and have cleared a milestone.
There are some good online guides and videos on nozzle changing. This procedure just adds some steps for clearing a jam. The main thing is to stay calm and stop trying to feed filament in. I didn't think it through and wound up with a snarl of filament around the feeder mechanism that was no fun to clean out.
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