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Z motors need more power

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Duet Hardware and wiring
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  • undefined
    axiom
    last edited by 19 Feb 2023, 16:33

    Z motors need more power. I have a total of 4 Z motors a 1800 mA. Officially, the board only supports 2400 mA. I connected them to the 2 slots on the board as intended and then wired them to 2 points each. I have the feeling that the 1.8 amps don't get through to the motors, but less. Is there a possibility, e.g. a load switch or something similar so that the motors can be sufficiently supplied.

    undefined 1 Reply Last reply 19 Feb 2023, 18:04 Reply Quote 0
    • undefined
      jay_s_uk @axiom
      last edited by 19 Feb 2023, 18:04

      @axiom how have you split the z motors? In serials or parallel? Series gives full current and parallel half's the current to the motors

      Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

      undefined 1 Reply Last reply 19 Feb 2023, 19:15 Reply Quote 0
      • undefined
        axiom @jay_s_uk
        last edited by 19 Feb 2023, 19:15

        @jay_s_uk Thanks for the tip, yes I connected them in parallel....do I have to solder them for a serial circuit, or do you have a link/tip where I can order such turnouts ready-made. In my search I only found parallel switches

        undefined 1 Reply Last reply 20 Feb 2023, 20:03 Reply Quote 0
        • undefined
          Phaedrux Moderator
          last edited by 19 Feb 2023, 20:40

          https://www.instructables.com/Wiring-Your-Z-Stepper-Motors-in-Series/

          Z-Bot CoreXY Build | Thingiverse Profile

          undefined 1 Reply Last reply 20 Feb 2023, 20:03 Reply Quote 0
          • undefined
            axiom @Phaedrux
            last edited by 20 Feb 2023, 20:03

            @Phaedrux Thanks to both of you! That seems to have been the solution!!!
            Best regards

            1 Reply Last reply Reply Quote 0
            • undefined
              axiom @axiom
              last edited by 20 Feb 2023, 20:03

              @axiom Thanks to both of you! That seems to have been the solution!!!
              Best regards

              1 Reply Last reply Reply Quote 1
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