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Help, I’ve looked everywhere and can’t figure out the problem


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Posted · Help, I’ve looked everywhere and can’t figure out the problem

My 2nd printhead when switched in printing mode is free to move and as such when I try and do the automatic levelling my build plate pushes it into my head and then says the difference is too big levelling failed what controls this.


the core is loose I can push it up with my finger when lift switch is enabled, I tried re assembling lift switch. 

this is a problem as active levelling fails. What should I do to stop this from



thank you

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    Posted · Help, I’ve looked everywhere and can’t figure out the problem

    Well, some more information would be helpful, such as which type of printer (UM3 or S-line) it is, and possibly some photos of the printhead (inside without the second printcore) and the printcore.

    The problem you describe seems to be lift switch related, perhaps the lift switch assembly is not assenbled properly. Often the lift switch spring is displaced or with the spring of the printcore could be something wrong.

    If you change the printcore, does the problem persist?


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