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    I'm having trouble diagnosing a new surface defect

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    • Jrowundefined
      Jrow
      last edited by Jrow

      The following picture shows some weird defects I'm getting after a stepper motor failure.

      • Swapped the motor over.
      • Swapped the new motor to a different stepper driver
      • Increased and decreased the jerk settings from 900 originally to settings between 100 & 2000; the issue is least visible at higher jerk settings - the change in the defect in the picture was due to changing jerk
      • Increased and decreased acceleration, max speed, and amperage, with no visible effect
      • Checked belt tension
      • Reapplied grease to the rails (why not?)

      I'm stumped as to what it might be. Any ideas?

      IMG_20220201_162658.jpg

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      • Jrowundefined
        Jrow
        last edited by

        I tried a new tact; I increased the resolution of the mesh, so it didn't have to 'turn' as steeply, and now the defect is mostly gone.

        MJLewundefined 1 Reply Last reply Reply Quote -1
        • MJLewundefined
          MJLew @Jrow
          last edited by

          @jrow Could it be a problem with pressure advance? Maybe the corners were triggering a pressure advance thing that was too much.

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