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UM2 Hot end assembly


mark-hale

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Posted · UM2 Hot end assembly

Hi

I have just replaced the complete hot end on my UM2, so thats nozzle, teflon spacer, hot end isolator and spring.

Previously when re assembling the components I have screwed the hot end isolator into the nozzle as far as it can go. This time with the new components I have noticed that if I do this I then have problems with extrusion when inserting the new material. I slackened off the hot end isolator by about a 1/4 turn, this resulted in the filament flowing.

Are there any detailed guides on what the various settings/gaps should be on re assembly of the hot end?

Thanks

 

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    Posted · UM2 Hot end assembly

    ...

    Are there any detailed guides on what the various settings/gaps should be on re assembly of the hot end?

    ...

     

    First choice should be the Assembly manual.

    The interesting part begins on page 55/56:

     

    turn the hot-end isolater until the teflon isolator part creates a gap of at least 1 mm and the bottom of the hot-end isolater is just not touching the messing part

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