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    Hotend Heater Cartridge always powered during print?

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    My Duet controlled machine
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    • alexprintundefined
      alexprint
      last edited by

      Hi to all,

      just a simple question: Is the heater always powered during prints?

      I´m just asking because I´ve noticed with my external Mosfets that the hotend is always on, just not on 100% but at about 40% to 50% (guessed by brightness of control light)
      Is this normal behaviour of Duet 3 ethernet @ Firmware 2.05 or do I have any issue in my setup which will cause my heater cartridge to die way too early?

      My rig: TRONXY X5SA coreXY upgraded to Duet 2 ethernet and MicroSwiss all metal hotend, dual PSU 24V

      Thanks for any advice!

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      • JamesMundefined
        JamesM
        last edited by

        Yes, it's common since it uses PWM (pulse width modulation) to switch it on and off rapidly to maintain temperature.

        alexprintundefined 1 Reply Last reply Reply Quote 1
        • alexprintundefined
          alexprint @JamesM
          last edited by

          @JamesM Well, then I´m quite happy again.
          Thanks for your fast answer, happy new year!

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