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    Output Step and Direction

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    • jordna.le1299undefined
      jordna.le1299
      last edited by

      Hi, right now I have an external driver that can take a step and direction output from a controller board like a Duet. I'm using a duet 2 ethernet and I see that there is a step an direction channel coming out of the lcd pins. I was wondering how I can get those to output step and direction either through the the web_ui or other methods. Thanks!

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      • mrehorstdmdundefined
        mrehorstdmd
        last edited by

        You may not get the needed voltage swing coming directly off the controller board. The's an expansion board that provides buffered/level shifted step/direction/enable signals that can save you a lot fo trouble. https://www.filastruder.com/products/duet-expansion-board

        https://drmrehorst.blogspot.com/

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        • jordna.le1299undefined
          jordna.le1299
          last edited by

          Ah so yea, so we're building a multi-axis printer. The problem here is that all the pins for that specific expansion board we're using are being taken up by servos. This is where my external board comes in, it has it's own driver and controller built in to drive an axis motor, and can be controlled by an external master using step and direction. Is this possible with duet, to just output step and direction from those lcd pins (STP/DIR (10 and 11))

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          • aidarundefined
            aidar
            last edited by

            Does this help? https://duet3d.dozuki.com/Wiki/Using_external_stepper_motor_drivers

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            • dc42undefined
              dc42 administrators @jordna.le1299
              last edited by

              @jordna-le1299 said in Output Step and Direction:

              Is this possible with duet, to just output step and direction from those lcd pins (STP/DIR (10 and 11))

              Yes. The signals are at 3.3V levels.

              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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