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    Houston we have a problem...

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    • peirofundefined
      peirof @jay_s_uk
      last edited by

      @jay_s_uk power its on, i am with usb connection, and power on...

      jay_s_ukundefined 1 Reply Last reply Reply Quote 0
      • jay_s_ukundefined
        jay_s_uk @peirof
        last edited by

        @peirof do you have a multimeter to check the power from the PSU?
        Also check all the fuses if you haven't already

        Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

        peirofundefined 1 Reply Last reply Reply Quote 0
        • peirofundefined
          peirof @jay_s_uk
          last edited by

          @jay_s_uk

          thanks i will try, i put reports after

          peirofundefined 1 Reply Last reply Reply Quote 1
          • peirofundefined
            peirof @peirof
            last edited by

            @peirof

            seems fuse.... but why?

            unnamed.jpg

            dc42undefined peirofundefined 2 Replies Last reply Reply Quote 0
            • dc42undefined
              dc42 administrators @peirof
              last edited by

              @peirof which Duet do you have, and which fuse has blown?

              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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              • peirofundefined
                peirof @peirof
                last edited by

                @peirof

                Duet v2

                burned fuse.jpg

                What protect this fuse?

                I can read in fuse 7.5

                peirofundefined 1 Reply Last reply Reply Quote 0
                • peirofundefined
                  peirof @peirof
                  last edited by

                  @peirof as supossed... first must solve the issue... i have changed the fuse.... and burn fast....

                  what protect these fuse... know where i have to search

                  jay_s_ukundefined 1 Reply Last reply Reply Quote 0
                  • jay_s_ukundefined
                    jay_s_uk @peirof
                    last edited by

                    @peirof 11e4a656-eb2b-4e7a-96a9-ec7d8f5d602a-image.png

                    Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

                    peirofundefined 1 Reply Last reply Reply Quote 1
                    • peirofundefined
                      peirof @jay_s_uk
                      last edited by

                      @jay_s_uk thanks

                      peirofundefined 1 Reply Last reply Reply Quote 0
                      • peirofundefined
                        peirof @peirof
                        last edited by

                        @peirof I have not had time to prove anything ...tomorrow, but I have a question.

                        From that fuse. Does the Due Panel also depend? because it is in black

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

                          @peirof yes the 5V from the PanelDue is also supplied via that fuse

                          www.duet3d.com

                          peirofundefined 1 Reply Last reply Reply Quote 1
                          • peirofundefined
                            peirof @T3P3Tony
                            last edited by

                            @t3p3tony

                            Hi,

                            This is a thought out loud, so you can tell me the mistakes I make, since I have no experience in electronics / electricity.

                            My goal is to identify which component is shorted, and which is causing the fuse to blow.

                            The components that this fuse monitors are:

                            • Due panel
                            • Extruder Heater
                            • Extruder Stepper
                            • Axis Stepper.

                            If the fuse burns, as soon as the printer is turned on, I have to discard the components that have not received power yet ... Which leaves us alone:

                            • Due panel.

                            No? Something escapes me? Do you watch any more components?

                            A component that could cause problems is the Heater ... but if it has not received power when the fuse blows ... I do not think it is the cause of the problem

                            peirofundefined T3P3Tonyundefined 2 Replies Last reply Reply Quote 0
                            • peirofundefined
                              peirof @peirof
                              last edited by

                              @peirof

                              another question that arises ...

                              I think I remember, that there have been moments, I don't remember if now, in config.g, in M906 I have or have had a current for 1200 motors, which exceeds the protection of the fuse.

                              Why hasn't it been burned before?

                              jumpedwithbothfeetundefined 1 Reply Last reply Reply Quote 0
                              • jumpedwithbothfeetundefined
                                jumpedwithbothfeet @peirof
                                last edited by

                                @peirof Do you have a multi-meter? if your blowing a fuse the safest thing to do would be to check all your wiring for shorts before you connect anything.

                                looking at the picture you posted above there appears to be stray strands of wire on the right most stepper connector (red wire)

                                6HC Voron Trident based, 6XD CNC, Mini 5 polar printer

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

                                  @peirof said in Houston we have a problem...:

                                  A component that could cause problems is the Heater ... but if it has not received power when the fuse blows ... I do not think it is the cause of the problem

                                  Heaters are switched on the ground side not the supply side so a heater that had a short to ground would start taking power as soon as the board has power. That said its unlikely that a normal heater in normal operation will draw 7.5A+ and blow the fuse, however a faulty heater with an internal short could do.

                                  As has already been said shorts in the wiring can also be the cause, most likely is VIN to ground.

                                  It is not impossible for it to be the paneldue, but that is the most unlikely as it gets 5V so it is unlikely for it to draw enough current at 5V to blow the fuse, unless the 5V regulator has also failed short (and then you have a lot of problems as VIN on the 5V line will damage other things as well.

                                  www.duet3d.com

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                                  • peirofundefined
                                    peirof
                                    last edited by

                                    hi,

                                    think i have find it, but something its wrong....

                                    i have unplugged:

                                    A)- First

                                    • Heater
                                    • Steppers motors
                                    • Panel Due

                                    B)- Second

                                    • I have changed the burned fuse, 7,5A

                                    C)- Third

                                    • Power on Duet/Printer

                                    and....

                                    After few seconds, maybe 10s...
                                    Smoke has started to come out from the cable connecting the Zprobe to the Duet. As fast as I could I have turned off the printer, but I think it was too late ...

                                    I have disconnected the Zprobe (Precision Piezo), and I have turned on the printer ... and I think wrong ...

                                    Many lights on on the plate, and it does not respond to the orders sent by Panel Due ...

                                    I have tried to connect by Telnet ... and it has not been possible ...

                                    I think DUET has burned ...

                                    what could have happened?
                                    Is it like the new fuse didn't do its job?
                                    What are my options?

                                    1 Reply Last reply Reply Quote 0
                                    • peirofundefined
                                      peirof
                                      last edited by

                                      disaster photos

                                      b2.jpg b3.jpg b1.jpg

                                      peirofundefined 1 Reply Last reply Reply Quote 0
                                      • peirofundefined
                                        peirof @peirof
                                        last edited by

                                        @peirof

                                        Thinking a bit about what could have happened ... the only thing I can think of is that at some point, I would have connected the Precision Piezo in reverse ...

                                        Could this be the cause of the disaster?

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

                                          @peirof possibly but its odd that it would base a 7.5A fuse to blow first and then start smoking! I cant see from the pictures but I assume the Paneldue is not connecting. Try connecting over USB (with everything else unplugged) and the SD card removed and see if you get a comm port and can connect over YAT.

                                          www.duet3d.com

                                          peirofundefined 1 Reply Last reply Reply Quote 0
                                          • peirofundefined
                                            peirof @T3P3Tony
                                            last edited by

                                            @t3p3tony said in Houston we have a problem...:

                                            ut its odd that it would base a 7.5A fuse to blow first and then start smoking! I cant see from the pictures but I assume the Paneldue is not connecting. Try connecting over USB (with everything else unplugged) and the SD card removed and see if you get a comm port and can connect over YAT.

                                            Panel Due its not connecting... and i have try to connect with YAT, and Usb connection with Duet dont appears

                                            T3P3Tonyundefined 1 Reply Last reply Reply Quote 0
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