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    Duet 3 mini 5+ connecting fans

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    Duet Hardware and wiring
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    • Alucardiundefined
      Alucardi
      last edited by Alucardi

      well there is something wrong cause it keeps burning my fans now. I killed 3 fans! WTF it was working fine last night but now out of the blue it kills my fans. I had 3 12v blowers and 2 cooling fans all dead. Even tried pc fan and it died to. What can i can?

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

        @Alucardi

        are you sure you changed to jumper to 12v? 24v will burn out the fans.

        Alucardiundefined 1 Reply Last reply Reply Quote 0
        • Alucardiundefined
          Alucardi @Veti
          last edited by Alucardi

          @Veti no. I must have miss read. I read it as 5-6 was set on 12v and 3-4 was vin but it was the other way around 🤷‍♂️
          I do have a few 5v blowers. I also have a bukconverter. Can I just pull power from that? If so do I just connect plus to the converter?

          21F717B0-3969-4B0E-9D75-168E65263884.jpeg

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          • Vetiundefined
            Veti
            last edited by

            thank you for running the test.
            i always wondered how long 12v fans would survive on 24v.
            so apparently not long.

            Alucardiundefined 1 Reply Last reply Reply Quote 0
            • Alucardiundefined
              Alucardi @Veti
              last edited by

              @Veti lol not even a second! Btw can I just connect the + to a buck converter and run that on 5v and - to OUT6? Cause I have several 5 volt blowers but no more 12v.

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

                that should work, but it would be best if someone else can confirm this works on the mini as well.

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                • Alucardiundefined
                  Alucardi @Alucardi
                  last edited by

                  @Alucardi said in Duet 3 mini 5+ connecting fans:

                  @Veti lol not even a second! Btw can I just connect the + to a buck converter and run that on 5v and - to OUT6? Cause I have several 5 volt blowers but no more 12v.

                  @dc42 can you confirm?

                  dc42undefined 1 Reply Last reply Reply Quote 0
                  • dc42undefined
                    dc42 administrators @Alucardi
                    last edited by

                    @Alucardi said in Duet 3 mini 5+ connecting fans:

                    @Alucardi said in Duet 3 mini 5+ connecting fans:

                    @Veti lol not even a second! Btw can I just connect the + to a buck converter and run that on 5v and - to OUT6? Cause I have several 5 volt blowers but no more 12v.

                    @dc42 can you confirm?

                    Yes, that would work,. However, as well as blowing the fans, it's quite likely that you have blown the fan mosfets on those outputs.

                    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

                    Alucardiundefined 1 Reply Last reply Reply Quote 0
                    • Alucardiundefined
                      Alucardi @dc42
                      last edited by

                      @dc42 i tried them with a pc fan and it was fine.

                      dc42undefined 1 Reply Last reply Reply Quote 0
                      • dc42undefined
                        dc42 administrators @Alucardi
                        last edited by

                        @Alucardi said in Duet 3 mini 5+ connecting fans:

                        @dc42 i tried them with a pc fan and it was fine.

                        That's good news!

                        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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