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BLTouch + additional servo

Scheduled Pinned Locked Moved
Duet Hardware and wiring
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  • undefined
    Computiger
    last edited by 6 Jul 2020, 12:38

    I´m trying to set an servo for my tool changer (something like Prusa MMU) but the config for servo isn´t that easy for me.

    My Setup:
    Duet Wifi
    Duex5
    BLTouch
    miniServo

    • BLTouch is running for Z-probe and connected to Heater 5 of duex5
    • the servo I´d like to control is connected to Heater 4 of duex5

    The BLTouch is running in z probe w/o any issues but the other servo doesn´t move if I want

    M950 S0 C"duex.pwm5" ; create servo pin 0 for BLTouch (default from Config Tool)
    M950 S1 C"duex.pwm4" ; additional servo

    I guess my thinking isn´t correct. Please help me to understand how it works

    undefined 1 Reply Last reply 6 Jul 2020, 19:16 Reply Quote 0
    • undefined
      Phaedrux Moderator
      last edited by 6 Jul 2020, 18:31

      How are you trying to command movement of the additional servo?

      Z-Bot CoreXY Build | Thingiverse Profile

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      • undefined
        Computiger
        last edited by 6 Jul 2020, 19:03

        like this over command line:

        M280 P1 S150
        
        1 Reply Last reply Reply Quote 0
        • undefined
          Computiger
          last edited by 6 Jul 2020, 19:08

          using that servo
          Savox SC-0254MG

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          • undefined
            dc42 administrators @Computiger
            last edited by 6 Jul 2020, 19:16

            @Computiger said in BLTouch + additional servo:

            the servo I´d like to control is connected to Heater 4 of duex5

            Do you really mean Heater 4, or do you mean PWM4 ?

            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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            • undefined
              Computiger
              last edited by 6 Jul 2020, 19:18

              @dc42 said in BLTouch + additional servo:

              mean PWM4

              I mean PWM4

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              • undefined
                Computiger
                last edited by 6 Jul 2020, 19:34

                I´ve just tried two other servo´s, these ones run fine like accepted.
                They are much cheaper than the 1st one. I have to check the wire.

                Thanks

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