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Ender 5 Plus with dual z calibration

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  • undefined
    nightmare90gt @Veti
    last edited by 2 Oct 2020, 11:25

    @Veti to both motors or just the motor having the problem. With power to the motors?

    undefined 1 Reply Last reply 2 Oct 2020, 11:35 Reply Quote 0
    • undefined
      Veti @nightmare90gt
      last edited by 2 Oct 2020, 11:35

      @nightmare90gt

      unplug the motor from the duet (with the duet off).
      measure the resistance of each phase of both motors at the plug.
      they should all be the same.

      1 Reply Last reply Reply Quote 0
      • undefined
        nightmare90gt
        last edited by 2 Oct 2020, 12:31

        2.2 ohms on both motors and each coil

        undefined 1 Reply Last reply 2 Oct 2020, 15:18 Reply Quote 0
        • undefined
          Veti @nightmare90gt
          last edited by 2 Oct 2020, 15:18

          do you know the specs of the motor?

          i found a 2.2 ohm motor and that one is 1.7 A, which would mean you are running way to little current.

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          • undefined
            nightmare90gt
            last edited by 2 Oct 2020, 15:22

            Kay3d told me 1.5a so I went to 1200ma and the stuttering got worse backed it down until the stuttering has appeared to stop at 1050ma

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            • undefined
              nightmare90gt
              last edited by 2 Oct 2020, 15:25

              But still get a little stuttering but not nearly as bad

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              • undefined
                Veti
                last edited by Veti 10 Feb 2020, 15:39 2 Oct 2020, 15:38

                so can you confirm.
                while the motors are powered, you can move one easily by hand and one not easily.
                moving that motor to a different driver does not change this behaviour.
                increasing the motor current makes it worse.

                on thing to test. disconnect both motors and move the head by hand. see if there is any resistance that feels stronger in some areas.

                the next thing to try is to replace the motors with the original ones for testing.

                also can you confirm that you are on firmware 3.1.1?

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                • undefined
                  nightmare90gt
                  last edited by 2 Oct 2020, 15:52

                  I went up to 3.2beta1 today just to rule out firmware.

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                  • undefined
                    nightmare90gt
                    last edited by nightmare90gt 10 Feb 2020, 16:05 2 Oct 2020, 15:59

                    Think I figured it out. I looked to be a combination of the wheels on y axis a little to tight and the motor amperage. I appreciate the help and you sticking with me through it.

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                    • undefined
                      Veti
                      last edited by 2 Oct 2020, 16:11

                      stay with 3.1.1 for now. there were some reports with instability.

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                      • undefined
                        nightmare90gt
                        last edited by 2 Oct 2020, 16:16

                        Will back it back down tomorrow thank you

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