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    Always on fan speed control?

    Duet Hardware and wiring
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    • jckray
      jckray last edited by

      Pretty sure it is not possible, but I'm wondering if you can control the speed of the always on fans.

      John
      Founder of Hydra Research LLC, developers of the open-source 3D printers and providers of 3D printing services.
      https://www.hydraresearch3d.com/

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      • DocTrucker
        DocTrucker last edited by

        No.

        Check the schematic but fairly sure it's vfan on one side and ground the other.

        Alive: 1 Ormerodish machines. 1 Custom Cantilever. 3 P3Steel. 1 Ciclopish scanner. In build: 1 P3Steel. Controllers: 2 Duet 2 , 2 D0.6, 1 D0.8.5, 1 D3 v0.5, 1 RAMPS/DRV8825, 1 Uno/Scan Card.

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        • Phaedrux
          Phaedrux Moderator last edited by

          I think I've seen other people use a heater pin as a PWM fan pin before.

          Z-Bot CoreXY Build | Thingiverse Profile

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          • jckray
            jckray last edited by

            Okay, that's what I thought. Thanks for confirming

            John
            Founder of Hydra Research LLC, developers of the open-source 3D printers and providers of 3D printing services.
            https://www.hydraresearch3d.com/

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            • dc42
              dc42 administrators last edited by

              You could connect a resistor in series with the fan.

              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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