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Orange_42

Spring on top of the second print core

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I was removing the PVA Filament from the printer when it got stuck and broke off in the feeder. I was able to get it out of the Bowden tubes by removing the tubes from the print head. I inserted the tube back into the print head and everything seemed okay at first. I changed the core so that I could use a different color and inserted the filament into the feeder to start getting the printer ready (I did follow the steps given on screen). I waited for the filament to start extruding as per the instructions and nothing happened for a long time. That's when I notice a spring above the second printcore that was not there before. Does anyone know what that spring is and know how to put it back into the print head if possible?

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wtf?  What is that?  Take that spring out.  There shouldn't be a spring there.  I think someone played a joke on you?  Do you have a 3 year old who puts things in places?

 

Hi to all !

It's not a joke !

I don't own an UM3 but I had the opportunity to disassemble an UM3 print head

this spring exist, it serves to keep well in pressure the 2 level switch parts,

something goes wrong for the Orange_42 case, the spring went out from it position, For an unknown reason, I think it turned while screwing out through the hole ?

it will need to open the top head to reposition it under the condition that there is no level broken parts,

Without this spring the level switch would not "switch" perfectely.

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