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Z Axis Issue


Mysty
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Hello guys,

 

I juste finished assembling my Ultimaker 2 Extended replica :)

 

Something is wrong about the Z Axis and I can't put my finger on it so maybe you could help :) 

 

When I do the startup translation,the plate goes up then touches the  nozzle and try to go down but at half way it stops and show me an error " Z switcher broken". Since it doesn't touch the switcher I don't understand how that could be the issue ..  All the cables sounds well contected so I have no clue here about what's going on ><

 

 

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    To help you I would like to see the first movements of the print bed from the very beginning of a print, but I would suggest that the z stepper motor may be wired wrongly. When a real UM starts a print it resets the position of both the print head and the bed, with the bed it should move up slightly and then down to the lowest Z stop position (controlled by the limit switch)

     

    I also have no info on the controller board or the firmware release level, I assume its a kit from China ?

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