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    Bondtech LGX Wiring

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    Duet Hardware and wiring
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    • NightLonk42undefined
      NightLonk42
      last edited by

      Hello everyone 🙂
      I've been having one heck of a time wiring up a new Bondtech LGX to my a toolboard. I've checked the schematics of it, and have also tried a switching wires around and every time I try to run the motor it'll stall or buzz.

      Here's a diagram of how I currently am trying to wire it. Any idea what I'm doing wrong?

      As always, thank you in advance!

      wiring.png

      kb58undefined leobgundefined 2 Replies Last reply Reply Quote 0
      • kb58undefined
        kb58 @NightLonk42
        last edited by kb58

        @nightlonk42 Those colors match how I have mine wired at the toolboard end, but at the stepper end, manufacturers can be a bit arbitrary. Honestly, just try a few permutations, as it'll take much less time doing that than waiting around for answers that may not be appropriate for your stepper.

        Also, double check how you configured the stepper - having that wrong could do it as well. Someone's bound to ask for you to list out your config.g...

        6bfe93ab-e92d-496e-8d0d-847e78779a5f-image.png

        Scratch-built 350mmx350mm coreXY, linear rails, ballscrews, 3 Z axis, Duet3 6HC, v3.3, Tool Board v1.1, BondTech LGX + Mosquito hot end

        NightLonk42undefined 1 Reply Last reply Reply Quote 1
        • NightLonk42undefined
          NightLonk42 @kb58
          last edited by

          @kb58
          Thank you! I figured I had them right, but just needed someone else to confirm lol

          I looked at bit closer at the toolboard and one of the connector joints wasn't soldered. Fixed that and it's working perfect!

          kb58undefined 1 Reply Last reply Reply Quote 0
          • kb58undefined
            kb58 @NightLonk42
            last edited by kb58

            @nightlonk42 Here's how it's wired at the stepper end. Note that this is as viewed from the front of the extruder, and also that the stepper has been rotated so that its connector is on the bottom.

            1264dbb1-c8bc-401f-a0e7-3162ab088d48-image.png

            Scratch-built 350mmx350mm coreXY, linear rails, ballscrews, 3 Z axis, Duet3 6HC, v3.3, Tool Board v1.1, BondTech LGX + Mosquito hot end

            1 Reply Last reply Reply Quote 1
            • leobgundefined
              leobg @NightLonk42
              last edited by

              @nightlonk42 This is how mine is wired:
              6b1248e3-0217-42e8-868b-3064967821eb-image.png . Note the stepper is just for illustration of the port.

              kb58undefined 1 Reply Last reply Reply Quote 0
              • kb58undefined
                kb58 @leobg
                last edited by kb58

                @leobg Your blue and red wires are reversed at the stepper in comparison with mine.

                Scratch-built 350mmx350mm coreXY, linear rails, ballscrews, 3 Z axis, Duet3 6HC, v3.3, Tool Board v1.1, BondTech LGX + Mosquito hot end

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                • dc42undefined
                  dc42 administrators
                  last edited by

                  @nightlonk42 when using stepper motors with detachable cables, always check which pairs are motor phases before connecting the motor to the controller. https://duet3d.dozuki.com/Wiki/Choosing_and_connecting_stepper_motors#Section_Identifying_the_stepper_motor_phases

                  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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