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    Random Smart Effector flashes

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    • sankafolaundefined
      sankafola
      last edited by

      sure here it is A5D23D63-45D9-4E43-8A8C-C9BCB945493C_1_105_c.jpeg DAD4CB33-CA84-4C4E-916A-758A37DD59CB_1_105_c.jpeg

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      • Phaedruxundefined
        Phaedrux Moderator
        last edited by

        Is that a scuff on the traces of the strain gauge?

        If you inspect the surface of the PCB closely do you see any scratches?

        Z-Bot CoreXY Build | Thingiverse Profile

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        • sankafolaundefined
          sankafola
          last edited by

          this is 60X 687C3679-82A8-4E9B-8259-0F92CE8FD4CB_1_105_c.jpeg D3BDC379-5504-40C9-820C-4B6CE885C1CB_1_105_c.jpeg 3FA23226-F3B4-4030-987A-F43F96D51375_1_105_c.jpeg

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          • Phaedruxundefined
            Phaedrux Moderator
            last edited by

            That does look like some damage.

            Z-Bot CoreXY Build | Thingiverse Profile

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            • sankafolaundefined
              sankafola
              last edited by

              that means i need to buy a new one or this can be fixed ?

              A Former User? 1 Reply Last reply Reply Quote 0
              • A Former User?
                A Former User @sankafola
                last edited by

                @sankafola said in Random Smart Effector flashes:

                or this can be fixed ?

                depends on how handy you are with a soldering iron; you could try to take some abrasive to the area and abrade off the blue layer getting down to the copper traces and soldering some bridges across.

                Phaedruxundefined 1 Reply Last reply Reply Quote 1
                • Phaedruxundefined
                  Phaedrux Moderator @A Former User
                  last edited by

                  @bearer That's more optimistic than my answer was going to be.

                  Z-Bot CoreXY Build | Thingiverse Profile

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                  • A Former User?
                    A Former User @Phaedrux
                    last edited by

                    @Phaedrux said in Random Smart Effector flashes:

                    @bearer That's more optimistic than my answer was going to be.

                    🙂 i've been around too much bob the builder watching little people - the optimism seems to rubs off no matter how hard i try to resist!

                    however no doubt about it, its fiddly work, but certainly possible.

                    sankafolaundefined 1 Reply Last reply Reply Quote 0
                    • sankafolaundefined
                      sankafola
                      last edited by

                      this pic are x60 times the size , my iron is bigger than 2 lines no way to solder 😞

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                      • sankafolaundefined
                        sankafola @A Former User
                        last edited by

                        @bearer the idea is to solder the cut off lines right /?

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                        • A Former User?
                          A Former User @sankafola
                          last edited by

                          @sankafola said in Random Smart Effector flashes:

                          this pic are x60 times the size , my iron is bigger than 2 lines no way to solder 😞

                          if its just a hairline break in the trace you'd probably be okay with some tacky flux and just dragging the tip across with a little solder on to bridge the gap; but some experience would help

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                          • A Former User?
                            A Former User
                            last edited by

                            if you have a meter you could try measuring the resistance across as shown on the back of the board? (power off)
                            13da3fde-e016-4727-8061-4f5da8cb89ce-image.png

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                            • sankafolaundefined
                              sankafola
                              last edited by

                              you mean U3 ? and U1 ?

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                              • A Former User?
                                A Former User
                                last edited by A Former User

                                close up: (edit: maybe not having it mirrored helps..)
                                efd57494-7375-4f45-a74f-43d752d130a3-image.png

                                R11, and R14 as indicated by the tall elipses.

                                then compare to the other half of the bridge on R11 and R13 as indicated by the wide elipses?

                                B and T on the schematic are essientially 10k resistors in the form of PCB traces, and you're trying to measure if they are different:
                                4bd26899-7a86-4cfe-aee3-1d5d5b2587e5-image.png

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                                • sankafolaundefined
                                  sankafola
                                  last edited by

                                  31.5 ohms and 34 ohms

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                                  • sankafolaundefined
                                    sankafola @A Former User
                                    last edited by

                                    @bearer R 11 red to black R 14 is 31.5 and red to R13 is 34 ohms

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                                    • A Former User?
                                      A Former User @sankafola
                                      last edited by

                                      @sankafola said in Random Smart Effector flashes:

                                      @bearer R 11 red to black R 14 is 31.5 and red to R13 is 34 ohms

                                      to the top strain gauge is 31.5 and the bottom is 34; not convinced the traces in that strain gauge are broken - but probably best to see if the Duet people has something to say about it before drawing conclusions
                                      (I'm usually in the "know enough to be dangerous" category..:)

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                                      • T3P3Tonyundefined
                                        T3P3Tony administrators
                                        last edited by

                                        Tf the top and bottom traces compete read ~30Ohms each then the score has not gone through them completely.

                                        Have you tried adjusting the sensitivity down to see if you can get a range that it triggers reliably when it taps on the bed (be careful, maybe hold a hard surface higher for initial tests and be prepared to cut power).

                                        https://duet3d.dozuki.com/Wiki/Smart_effector_and_carriage_adapters_for_delta_printer#Section_Programming_the_sensitivity

                                        www.duet3d.com

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                                        • sankafolaundefined
                                          sankafola
                                          last edited by

                                          it is working but sometimes it just flash by itself and i dont think any traces of touch on these gauge is doing it because if it is why its not doing it all the time ??!!

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                                          • sankafolaundefined
                                            sankafola @T3P3Tony
                                            last edited by

                                            @T3P3Tony am using SKR 1.4 Turbo not duet , so my MOD pin is not connected to anything right now ,

                                            let me just explain what is the issue i see , the smart effector works fine and do auto claib and all is good but all of sudden it start to flash even if its not doing anything , if i reboot the printer and it become normal again

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