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    Current formula for TMC2660

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    • Flyer007undefined
      Flyer007
      last edited by

      So I have searched for a formula for setting the current of these drivers but can't find any. Do people use the TMC2100 formula?

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      • T3P3Tonyundefined
        T3P3Tony administrators
        last edited by

        You can set the current directly using M906:

        https://duet3d.com/wiki/G-code#M906:_Set_motor_currents

        Example
        M906 X300 Y500 Z200 E350:350
        Sets the currents to send to the stepper motors for each axis. The values are in milliamps.

        www.duet3d.com

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        • Flyer007undefined
          Flyer007
          last edited by

          Thanks, I saw that and am excited over turning with screwdriver. What I have yet to find is the formula for figuring out what mA to start with. Like other drivers have you set a Vref based on max holding current * 80% * 1.x

          So I guess since this is straight current then a good start would be 80% of max holding current???

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          • elmoretundefined
            elmoret
            last edited by

            Yes.

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