Ho do I remove the bowden tube from the extruder?
I need to remove the tube from the extruder to load TPU. How does the coupler work? The black ring does not push in like others I've used. It does spin, but it does not unscrew. What is the magic word? Thanks.
Prusa Core One
RE:
I need to remove the tube from the extruder to load TPU. How does the coupler work? The black ring does not push in like others I've used. It does spin, but it does not unscrew. What is the magic word? Thanks.
It works the same way as all the other couplers. You push on the black ring with a fingernail, pull the tube out. Try using two fingers holding the side of the retainer ring and pull down if the other way doesn't work
RE:
I found using one finger to be almost impossible. I push two sides of the ring down with thumb and index finger of one hand, and pull the PTFE tube with the other hand.
Formerly known on this forum as @fuchsr -- https://foxrun3d.com/
RE: Ho do I remove the bowden tube from the extruder?
Yes, I can only do it two-handed. Someone in another thread suggested that the Prusa wrench that comes with the kit has an opening that's the perfect width to press the ring. No doubt there's some other small "ignition wrench" that would do the same thing, or you could print a tool.
RE: Ho do I remove the bowden tube from the extruder?
I use fine tipped tweezers to hold down the ring, avoiding to press the sides of the tube, Then, with two fingers of the other hand, I pull out the PTFE tube. Possibly, some skilled people manages to do that single handed but, at my age, I wouldn't even try..
RE: Ho do I remove the bowden tube from the extruder?
it's unintuitive but pushing down on the tube with ring depressed (ideally, from two sides) can help to unlock it.