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    Layer shift in Y Axis only.

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    Tuning and tweaking
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    • Karimundefined
      Karim
      last edited by Karim

      Hey guys trying to figure out this, I print a benchy in the Y axis and it has layer shift towards the top as you can see in the photo. Same setting no layer shift in the X Axis. The Y Axis Nema 17 is working @ 85% of total Amps.
      https://www.filastruder.com/collections/electronics/products/high-torque-axis-motor

      M350 X16 Y16 Z16 U16 E16:16 I1 ; Configure microstepping with interpolation
      M92 X160 Y160 Z1600 U160 E512.96:512.96 ; Set steps per mm
      M566 X480 Y480 Z24 U480 E300:300 ; Set maximum instantaneous speed changes (mm/min)
      M203 X9000 Y9000 Z360 U9000 E1500:1500 ; Set maximum speeds (mm/min)
      M201 X1000 Y1000 Z100 U1000 E5000:5000 ; Set accelerations (mm/s^2)
      M906 X950 Y1300 Z950 U950 E1200:1200 I30 ; Set motor currents (mA) and motor idle factor in per cent
      M84 S30 ; Set idle timeout

      Same setting as above, Layer shift in Y axis.
      0_1548939774324_layer shift y.jpg
      Same setting as above, but no layer shift in X Axis.
      0_1548939964068_no layer shift in x.jpg

      I just increase all the value, Now I don't have layer shift in Y Axis, but the printer is very jerks, you can also hear the noise it produces. I don't want to use it like this.

      M350 X16 Y16 Z16 U16 E16:16 I1 ; Configure microstepping with interpolation
      M92 X160 Y160 Z1600 U160 E512.96:512.96 ; Set steps per mm
      M566 X1000 Y1000 Z60 U1000 E10000:10000 ; Set maximum instantaneous speed changes (mm/min)
      M203 X6000 Y6000 Z360 U6000 E1500:1500 ; Set maximum speeds (mm/min)
      M201 X3000 Y3000 Z150 U3000 E8000:8000 ; Set accelerations (mm/s^2)

      M906 X1200 Y1428 Z1130.5 U1200 E1200:1200 I30 ; Set motor currents (mA) and motor idle factor in per cent
      M84 S30 ; Set idle timeout

      This was printed in the Y Axis with setting above I cannot see any layer shift.
      0_1548940557597_no layer shift y.jpg

      deckingmanundefined 1 Reply Last reply Reply Quote 0
      • deckingmanundefined
        deckingman @Karim
        last edited by deckingman

        @karim The most common cause of layer shifts like that is something mechanical. Quite often, if the printer isn't dialled in quite right, then a blob forms on the part, the hot end collides with that blob, and something moves. If you use a print surface help in place by clips, that can move. Or a belt might jump on a pulley. Or it might not be caused by a blob forming. Maybe a pulley is loose on a shaft somewhere?

        The fact that it shifted once, then the rest of the print continued tends to rule out most things related to configuration settings.

        Ian
        https://somei3deas.wordpress.com/
        https://www.youtube.com/@deckingman

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        • Karimundefined
          Karim
          last edited by Karim

          That's the first things I did, the two Y axis belts are tension ok, pulley are tight on shaft. The only thing I did not check is the linear rails on both sides. I am using buildtak flex plate, Z axis only move up and down. I made the printer faster and it did not skip (layer shift) . So I am thinking it has to do with my setting. It too jerky now, but setting does not produce layer shift.

          M566 X1000 Y1000 Z60 U1000 E10000:10000 ; Set maximum instantaneous speed changes (mm/min)
          M203 X6000 Y6000 Z360 U6000 E1500:1500 ; Set maximum speeds (mm/min)
          M201 X3000 Y3000 Z150 U3000 E8000:8000 ; Set accelerations (mm/s^2)

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          • dc42undefined
            dc42 administrators
            last edited by

            Which Duet are you using? There are two causes of layer shift on the Duet Maestro that don't apply to the Duet WiFi/Ethernet.

            Duet WiFi hardware designer and firmware engineer
            Please do not ask me for Duet support via PM or email, use the forum
            http://www.escher3d.com, https://miscsolutions.wordpress.com

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            • Karimundefined
              Karim
              last edited by Karim

              Duet wifi

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