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Solved Z Homing the wrong direction (Sometimes)

Discussion in 'Troubleshooting' started by wthierry, Dec 30, 2014.

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  1. wthierry

    wthierry Active Member

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    Sometimes my machine gets in a state that I press the home button, and the z axis moves up instead of down. Anyone else seen this? What could cause it?

    thanks
     
    #1 wthierry, Dec 30, 2014
  2. Ziggy

    Ziggy Moderator
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    If the Z axis home switch(es) is already triggered, when you press Z Home the Z will move up a few millimeters and then stop. This can happen if the wiring to the Z Home switch(es) is intermittent faulty.

    You can check the state of the Z home switch(es) using gcode M119.
     
    #2 Ziggy, Dec 30, 2014
  3. Mike Kelly

    Mike Kelly Volunteer

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    #3 Mike Kelly, Dec 30, 2014
  4. wthierry

    wthierry Active Member

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    that was it thanks mike!
     
    #4 wthierry, Dec 31, 2014
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