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    external servomotors with duet 3

    Duet Hardware and wiring
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    • JV
      JV last edited by

      hello guys
      I have a 3d printer working with duet 2 and the expansion board to connect external brushless servomotors.
      I would like to know if i want to upgrade to a DUET3, can i connect the servomotors? how?
      It is convenience to upgrade from DUET2 to DUET 3?
      I'll need more digitals I/O, with the duet 3 can i have it?
      Thanks for your help.

      dc42 1 Reply Last reply Reply Quote 0
      • dc42
        dc42 administrators @JV last edited by

        @jv are all the motors servos, or do you need some on-board stepper drivers too?

        • If all the motors are servos then the best option would be the Duet 3 MB6XD which is currently in pre-production status, so not widely available yet.
        • If just two motors are servos then the Duet 3 Mini would be an option, with level shifters if necessary to convert the two step/dir outputs from 3.3V signal levels to 5V.
        • If more than two motors are servos but some on-board drivers are also needed, then the best Duet 3 option is a Duet 3 MB6XD for the servos and either TOOL1LC tool boards or a EXP3HC expansion board.

        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

        JV 1 Reply Last reply Reply Quote 0
        • JV
          JV @dc42 last edited by

          @dc42 thank you for your fast response.

          I need 3 servos output signal (step/dir) for X,Y and Z axis and 2 steppers for the extruders .

          could you tell me how many digital I/O will be present in the Duet 3 MB6XD and when will it be available for purchase?

          Thanks

          dc42 1 Reply Last reply Reply Quote 0
          • dc42
            dc42 administrators @JV last edited by

            @jv the MB6XD specifications are at https://docs.duet3d.com/Duet3D_hardware/Duet_3_family/Duet_3_Mainboard_6XD_Hardware_Overview. It has three 5A heater outputs @ VIN voltage, six 2A outputs @ either VIN or 12V, and nine low voltage I/O ports. So similar to the MB6HC but without the bed heater output.

            The tool boards or EXP3HC that you would need to drive your extruders also have I/O.

            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

            1 Reply Last reply Reply Quote 0
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