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bryanzd

Auto home sends z axis down instead of up...?

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Posted · Auto home sends z axis down instead of up...?

I just turned on my UMO+ for the first time and hit the auto home function. I was told that the z axis should go up to the limit switch, instead it went down, way down...and made a long loud ugly noise...what happened?

 

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Posted · Auto home sends z axis down instead of up...?

Z home is down, not up. If you home Z and the plate is not calibrated (too high), the nozzle will crash on the plate, hence the ugly noise I would guess.

 

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Posted · Auto home sends z axis down instead of up...?

Home will cause the z stage to move up. Sounds like stepper wires may be the wrong way around? does the print head move to the front left corner ok? if it doesn't, it may be that the steppers are plugged into the wrong stages on the control board (i.e x is plugged into z or similar).

 

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Posted · Auto home sends z axis down instead of up...?

Also, when in the set up wizard, at the point where I am supposed to level the bed, it does not matter which key I press, up or down, it only moves down.

 

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Posted · Auto home sends z axis down instead of up...?

Problem solved, calibrated with Pronterface, working smoothly now.

 

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