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Solved Y axis motor issue on R1 Plus

Discussion in 'Troubleshooting' started by Matt Baker, Jul 30, 2017.

  1. Matt Baker

    Matt Baker New Member

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    About 8 hours into a print with PLA, my Y-axis motor began to make a stripping noise and began moving in random direction (switching between +y and-Y at random). I removed the magnetic plate and did not see any debris, and the belt is tight. When powered off, the y axis moves smoothly.

    Video of issue:


    Is this an indication of a Y axis motor problem? Do I need a replacement, or is there a fix?

    Thank you,
    Matt
     
  2. Doug Meek

    Doug Meek Member

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    Check to see if the drive cog is loose on the motor shaft.
     
  3. mark tomlinson

    mark tomlinson ༼ つ ◕_ ◕ ༽つ
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    Your Y belt looks a little loose, but that may not be the ultimate problem. That would more likely be a weak stepper driver.
     
  4. Geof

    Geof Volunteer Moderator
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    Sounds liek a little bit of both, weak stepper driver and I'd for sure tighten up that belt. (should not shake like that)
     
  5. Matt Baker

    Matt Baker New Member

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    The issue was a single loose wire in one of the 4-wire connectors from the Y-axis motor to the main board. For now I've re-seated that wire and it works again. THANK YOU to the Robo3D team for healing out with the issue.

    I will take a look at tightening the belt in the future. For now I'm looking into finding the best 4-wire replacement cable.
     

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