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    15500 Hz Whine at idle

    Scheduled Pinned Locked Moved
    Duet Hardware and wiring
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    • Dezdoghoundundefined
      Dezdoghound
      last edited by Dezdoghound

      When I leave my printer idle for more than 30 minutes, it starts making a 15,500 Hz sound that's quite prominent and goes away with any load (eg heater on). Interested as to what causes this, I assume it's some sort of standby state from either the duet or the power supply itself?

      Just curious if there's anything I can do to stop it. My (or my dog's!) ears don't appreciate it 😉

      alt text

      dc42undefined Falkiaundefined 2 Replies Last reply Reply Quote 0
      • dc42undefined
        dc42 administrators @Dezdoghound
        last edited by dc42

        @dezdoghound my guess is that the whine is coming from your power supply.

        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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        • Falkiaundefined
          Falkia @Dezdoghound
          last edited by

          @dezdoghound as @dc42 mentioned I think this is from the power supply. It is common that a switched power supply generates a whining sound when no load is applied.
          /Fredrik

          Printer: "Deltacus" Delta with 510mm bed diameter and 925mm build height. Powered by Duet 2 WiFi. Duet Smart Effector with E3D Volcano.

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