MattQ
1
I’m trying to solve a problem with my son’s Da Vinci Junior. Some filament has broken off inside the extruder module. I’ve tried the nozzle cleaning facility (poking wire up), which made no difference. I’ve tried the “deep clean” procedure, but I cannot load filament: the filament will not go through, even with a reasonable degree of force (it goes in to a depth of just over 2"), but no further. (Unfortunately, I’ve not having seen this machine working – it was at his mother’s house – so I don’t know what normal loading looks/sounds like, so there could be an issue with that too, I guess).
I can see filament where the arrow is pointing on this photo, and presumably there’s more below that; so I assume that’s where the blockage is. Any idea how I can clear it without taking the unit apart? Or if I have to disassemble it, any advice, diagrams etc?
Many thanks.
Matt
OMD3D
2
Carefully disassemble the extruder module. Make sure to make pictures from every step.(easy to reassemble)
The blockage will presumably be situated in the module. there is a narrow passage in that area. gently try to remove the rest filament.
visual check for clearance with new filament before reassembly.
take extreme care, do not damage cables en board.
success!
If it is abs then you could try an acetone bath…
The plastic below that point is what heats up and melts. So if it snapped and you turned it off your going to have hard melted plastic stick in the nozzle and can be hard to clean out.
Have you try to heat up the print head then pushed the cleaning pole in from the top (Not the Nozzle) to push the plastic out throw the nozzle to clear it ? Just becareful not to do any damage or to burn your self trying this. I’ve done it this way before but mines the Pro so its a different print head. Either way your going to need to heat it up to unstick the plastic stuck in the nozzle holding the rest in.
MattQ
5
Daniel, thanks.
Yes, I’ve tried heating it up and loading filament, but it won’t load, and also just trying to push the plastic through when it’s heated. I can push the filament in about 21/4 inches (as the arrow on my photo). Having looked more closely, that’s definitely where the blockage starts. I can see filament right at the top of the unit that goes down from where the arrow is. I guess I can try leaving the heat on for longer.
Thanks again, Matt
OMD3D
6
Matt
heating is of NO use!
there is a tiny tube of PTFE in the Hotend that will burn.
only solution is carefuly remove blockage when disassembled.
PTFE only melts if you burn it over 300C its why they use it, it has a high melting point, and I ment by the printer not by using a flame.
The type of plastic, there is generally abs and pla, more than likely it’ll be abs and so you could dismantle the extruder down to the nozzle and if you still cant get the plastic out it will dissolve in acetone.
