How do i get this stuck filament out?

A bit of filament has snapped in what i think is called the buffer? the small rectangle box at the back both filament paths go through.

It is an easy fix in terms of i can see the filament and all i need to do is release the ptfe tube and pull it out. However, the ptfe tube is not release when i push back the pneumatic clip to release it.

the part i am referring to is in the pic below where you can see the filament in the ptfe tube.

i have tried holding the orange part firmly and pressing in the clip, but the tube wont come out.

i have tried manually feeding filament from the input side to push it through, and that is with the ptfe disconnected at the other end, but the filament wont move.

Any ideas on how to remove this would be really appreciated.

Hi @DaDDyICEPOC

I don’t own a double nozzle printer, but the buffer is similar to the one of the p2s so maybe this can help.

X2d buffer replacement guide

Replace buffer PTFE tube connector for x2d

Both of these links go through an almost complete disassembly of the filament buffer.

Hope it helps!

Not familiar with the way your filament is routed but any way you can access a tubing end farther away and use filament to push the broken piece out?

Also, there are some tools on MW that may make it easier to get those tubing fittings to let go of the tubing. A search for “tubing release” found a number of them.

On the H2 printers working the buffer slider back and forth by hand can free jammed filament.

Initially on the H2 I’ve found it can seem immovable but just pushing it each way a few times freed it up.

The PTFE release actually needs to move inwards a small amount with the tubing so if the filament is jammed solid it can prevent the release.

Also it can help sometimes to feed a cut length of filament in to push the blockage through