Duet3D Logo Duet3D
    • Tags
    • Documentation
    • Order
    • Register
    • Login

    Mini Duet 5+ - Part fan runs continuously

    Scheduled Pinned Locked Moved Solved
    My Duet controlled machine
    5
    30
    1.7k
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • PaulHewundefined
      PaulHew @T3P3Tony
      last edited by PaulHew

      @t3p3tony I do not mind sending it back and paying for it to be fixed.
      Not one for messing people around. I agree it was working, so no dispute there hence why I am offering to pay.

      I have heard of mosfet's during my time on the forum, do not know what one looks like.

      It did get hot in that little chamber so am going to go through the wiring to make sure all is good. It was hot enough to shrink the heat shrink cable labels near the extruder!

      Appreciate the help as usual gents.
      Regards,
      Paul.

      RailCore II - Duet Mini + 1LC, Voron V0.1 - Duet Mini
      Voron 2.4 disassembled..... Waiting for the RailCore Mini....

      T3P3Tonyundefined 1 Reply Last reply Reply Quote 0
      • T3P3Tonyundefined
        T3P3Tony administrators @PaulHew
        last edited by

        @paulhew drop me a line tony@duet3d.com and we can take it from there.

        www.duet3d.com

        NexxCatundefined 1 Reply Last reply Reply Quote 0
        • NexxCatundefined
          NexxCat @T3P3Tony
          last edited by

          @t3p3tony Sorry to intrude, but does the Driver 0 TMC2209 look odd to you? Looking at 2 separate photos, the text line above GERMANY looks odd on that one driver.

          droftartsundefined 1 Reply Last reply Reply Quote 0
          • droftartsundefined
            droftarts administrators @NexxCat
            last edited by

            @nexxcat Yes, there does look like there's a hole burnt into it. @PaulHew does Driver 0 work okay? Is that where the extruder motor is connected?

            b3b4a43e-2b2b-4bf0-9068-6f38e6cc6061-image.png

            Ian

            Bed-slinger - Mini5+ WiFi/1LC | RRP Fisher v1 - D2 WiFi | Polargraph - D2 WiFi | TronXY X5S - 6HC/Roto | CNC router - 6HC | Tractus3D T1250 - D2 Eth

            PaulHewundefined 1 Reply Last reply Reply Quote 2
            • PaulHewundefined
              PaulHew @droftarts
              last edited by

              @droftarts x and y are on 0 and 1, z on 3 e, on 4.

              I will have another look later when I am back.

              RailCore II - Duet Mini + 1LC, Voron V0.1 - Duet Mini
              Voron 2.4 disassembled..... Waiting for the RailCore Mini....

              PaulHewundefined 1 Reply Last reply Reply Quote 0
              • PaulHewundefined
                PaulHew @PaulHew
                last edited by

                @paulhew it homed alright this morning.

                RailCore II - Duet Mini + 1LC, Voron V0.1 - Duet Mini
                Voron 2.4 disassembled..... Waiting for the RailCore Mini....

                PaulHewundefined 1 Reply Last reply Reply Quote 0
                • PaulHewundefined
                  PaulHew @PaulHew
                  last edited by

                  @paulhew 20210518_205601.jpg
                  As close I can get to driver0

                  Homing is fine and believe it or not it still extrudes!

                  RailCore II - Duet Mini + 1LC, Voron V0.1 - Duet Mini
                  Voron 2.4 disassembled..... Waiting for the RailCore Mini....

                  1 Reply Last reply Reply Quote 0
                  • PaulHewundefined
                    PaulHew
                    last edited by PaulHew

                    Update....
                    I took the time last night to remove the Mini 5 from my printer so I can send to Tony. Thanks @T3P3Tony
                    Whilst at it I checked the fan cabling and found a melt spot on one of the cables. There was also a mark on the brass where i realize now it had shorted, me being inquisitive wiped it to see what it was!
                    20210521_085543.jpg

                    As per the LDO part number and spec sheet which is above in this thread, 800ma is way too much for this little motor, even though they say it is rated for 1amp
                    The motor was that hot it burnt my fingers when checking the issue, in turn had heated the brass standoffs which then melted the sheath of the fan cable that was resting on the brass. (The whole lot is in a chamber)
                    Also you can see the heat shrink has been shrunk by the extreme heat. I put them on loose!

                    All the printers I have built and used the 80% rule, i have never had this.

                    However lesson learnt, replace chinese cable with silicone or use a protective braid.

                    For those who think I did not RTFM, I did and always do! 😉 Hence how I got into this mess! 🤣

                    RailCore II - Duet Mini + 1LC, Voron V0.1 - Duet Mini
                    Voron 2.4 disassembled..... Waiting for the RailCore Mini....

                    T3P3Tonyundefined 1 Reply Last reply Reply Quote 2
                    • T3P3Tonyundefined
                      T3P3Tony administrators @PaulHew
                      last edited by

                      @paulhew Thanks for the update. I think its likely that the melting + short fried the Out3 mosfet but will take a look when I get your board. The stepper driver "black spot" though 🤔 we will see!

                      www.duet3d.com

                      PaulHewundefined 1 Reply Last reply Reply Quote 0
                      • PaulHewundefined
                        PaulHew @T3P3Tony
                        last edited by

                        @t3p3tony Thank you for fixing my board, really do appreciate it.
                        Can start my tuning now and convert 'Voron' macros to work with RRF.

                        Thanks again
                        P.

                        RailCore II - Duet Mini + 1LC, Voron V0.1 - Duet Mini
                        Voron 2.4 disassembled..... Waiting for the RailCore Mini....

                        1 Reply Last reply Reply Quote 0
                        • PaulHewundefined
                          PaulHew
                          last edited by

                          Finishing Touch..... Love the new Duet Labels
                          20210531_130225.jpg

                          RailCore II - Duet Mini + 1LC, Voron V0.1 - Duet Mini
                          Voron 2.4 disassembled..... Waiting for the RailCore Mini....

                          1 Reply Last reply Reply Quote 1
                          • First post
                            Last post
                          Unless otherwise noted, all forum content is licensed under CC-BY-SA