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    24V prusa style 3d printer System

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    Duet Hardware and wiring
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    • npm1undefined
      npm1
      last edited by

      Hi,
      I have a spare 12v silicone heated bed, what modifications would I need to make it work on a 24v power supply?

      .Buck converter
      .Mosfet
      .Direct connection with issues( please explain any potential issues)...

      Please Help

      Ender 5 pro(LGXextruderddewith e3d revo rapid changer) with fly rrf e3 and a standard prusa mk3, both siting air-tight in a ikea kitchen cabinet.

      1 Reply Last reply Reply Quote 0
      • Vetiundefined
        Veti
        last edited by Veti

        you can use a mosfet to run the bed at 12v and the rest at 24v. This requires 1 12V power supply and 1 24V supply.

        buck converter that can handle 20a will cost a bit. might be easier just to buy a 24v silicone heater.
        and i am not sure if you want to run the buck converter with the pwm pulsing.

        Stephen6309undefined 1 Reply Last reply Reply Quote 0
        • Stephen6309undefined
          Stephen6309 @Veti
          last edited by

          @veti The buck convertor is connected directly to the power supply and its positive to the bed. You use the negative bed connection on the Duet for the negative to the bed. This also works for the fan and hotend.

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          • Vetiundefined
            Veti
            last edited by

            yes you are right. the duet pulses on the negative.

            1 Reply Last reply Reply Quote 0
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