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Nozzle disappearing up its own a***...perture - solved

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Posted · Nozzle disappearing up its own a***...perture - solved

Sorry for the bad joke. This questions concerns an UM2.

I've had to use the "atomic method" quite a few times recently. As a result of pulling the filament back when the temperature drops to 90°, the nozzle has almost completely disappeared inside the head (see pictures).

What's the best way to bring it back down again without breaking anything?



Problem Nozzle

Problem Nozzle 2


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    Posted · Nozzle disappearing up its own a***...perture - solved

    Strange. Well that nut with the holes in it rotates - you may want to heat to 180C before rotating - you might even have to disassemble enough to get the spring out to lessen the pressure. Rotating that nut (which is not as strong as steel so take it easy!) raises and lowers the nozzle tip so that if we ever go dual extruder you can set them to the exact same height.


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    Posted · Nozzle disappearing up its own a***...perture - solved

    Just wiggle it... the collar with holes is just a push fit into the plate underneath it. Take the fan shroud off, and then gently wiggle the heater block back and forth and slide the collar and heater back into place.


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    Posted · Nozzle disappearing up its own a***...perture - solved

    @gr5: Thanks (again) for your help. It's really appreciated!

    Before I break anything, do you mean that nut (see pic with the red arrow)? If so, is it best to rotate it by putting a lever inside the small holes, or should I use pliers?

    Nozzle - Nut


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    Posted · Nozzle disappearing up its own a***...perture - solved

    You're welcome! I had to do it this morning on one of my printers after installing a new nozzle.


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    Posted · Nozzle disappearing up its own a***...perture - solved

    Thanks guys. At first, I couldn't get the heater block to move. As is often the case with this kind of situation, the solution came in the form of a combination of gr5 and illuminarti's advice. I had to heat up the head to 180° and wiggle the heater block while turning the nut at the same time.


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