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    How to monitor if the fan is spinning

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    Duet Hardware and wiring
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    • ageisundefined
      ageis
      last edited by

      So I have one normal 3pin for the hotend. I was wondering if there is a way I can monitor if it's spinning?

      If it isn't then popup a message saying it's not spinning.

      droftartsundefined fcwiltundefined 2 Replies Last reply Reply Quote 0
      • droftartsundefined
        droftarts administrators @ageis
        last edited by

        @ageis See the 'Connecting a 3-wire fan' tab here https://docs.duet3d.com/en/User_manual/Connecting_hardware/Fans_connecting#connecting-fans-to-duet-fan-pins

        Most 3-wire fans have a tacho wire. However, as it says in the link above:

        For all 3-wire fans, the tacho will only report the correct speed when the fan is running at 100%.

        I'm not sure what fan speed is reported when the fan is not set to 100%. Ideally, swap the fan out for a 4-wire fan.

        Ian

        Bed-slinger - Mini5+ WiFi/1LC | RRP Fisher v1 - D2 WiFi | Polargraph - D2 WiFi | TronXY X5S - 6HC/Roto | CNC router - 6HC | Tractus3D T1250 - D2 Eth

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        • fcwiltundefined
          fcwilt @ageis
          last edited by

          @ageis said in How to monitor if the fan is spinning:

          So I have one normal 3pin for the hotend. I was wondering if there is a way I can monitor if it's spinning?

          I find that using a basic Eyeball Mark I works pretty well. 😀

          Frederick

          Printers: a E3D MS/TC setup and a RatRig Hybrid. Using Duet 3 hardware running 3.4.6

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