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    Beware of braindead BLTouch wiring.

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    • Vetiundefined
      Veti
      last edited by

      this seems like a production error.

      their wiring diagrams use the same color coding

      https://www.antclabs.com/wiring3

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      • TheNewDudeundefined
        TheNewDude
        last edited by TheNewDude

        Check again this color scheme is correct but it's reversed end to end. It's not the BLTouch itself but the cable that was sent with it. The BLTouch was fine but the cable sent has the color scheme backwards.

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        • Vetiundefined
          Veti
          last edited by Veti

          yes i was referring to the production error for the cable
          email antlabs and ask about this. maybe they will send you a replacement

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          • MartinNYHCundefined
            MartinNYHC
            last edited by

            It's a nightmare with BLTOUCH and cable wires. Spent so many hours with this *"%§%§%.

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            • Phaedruxundefined
              Phaedrux Moderator
              last edited by

              Is it this kit?

              https://www.creality3dofficial.com/products/creality-bl-touch

              Z-Bot CoreXY Build | Thingiverse Profile

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

                https://www.creality3dofficial.com/products/creality-bl-touch
                check the video at 1:22 it specifically mentions how to connect the cable

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                • TheNewDudeundefined
                  TheNewDude
                  last edited by

                  Yes the kit in that link, the second image down I believe. Ender 3 v2

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                  • TheNewDudeundefined
                    TheNewDude
                    last edited by

                    I should not have assumed the color schemes would be standard. I thought I'd make a post to maybe save someone's BLTouch in the future with similar cables.

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                    • TheNewDudeundefined
                      TheNewDude
                      last edited by

                      For background I am using a Duet2 Wifi board and I cut this cable up and wired it into the Duet3d board using the guide in the link I provided. The mistake was in assuming the color code for the BLTouch wires was standard. Apparently it's not standard.

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                      • Phaedruxundefined
                        Phaedrux Moderator
                        last edited by

                        I guess since they are using their own PCB and ribbon cable they figure it doesn't matter since the cable ends are keyed it's hard to make an error when installed in their own machine.

                        Why get the Creality version at all if not using the Creality board? For the mounting hardware?

                        I can add a warning to the BLTouch probe section to look out for the Creality kit wiring not being standard.

                        Z-Bot CoreXY Build | Thingiverse Profile

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                        • TheNewDudeundefined
                          TheNewDude
                          last edited by

                          I bought it because it came with the mounting bracket and a nice long cable... looking back I wish I'd of not got the cable lol. Here's a photo with the correct wiring

                          alt text

                          foxundefined 1 Reply Last reply Reply Quote 3
                          • Vetiundefined
                            Veti
                            last edited by

                            did you look at the video. they explicitly tell you not to connect it that way round

                            f61217e2-02b9-42e0-8fe7-6b490331d94b-image.png

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                            • TheNewDudeundefined
                              TheNewDude
                              last edited by

                              You can only connect this cable one way.

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                              • TheNewDudeundefined
                                TheNewDude
                                last edited by

                                Yes, it seems it's a production error, according to that video, the wiring should be reversed. Sad indeed.

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                                • A Former User?
                                  A Former User
                                  last edited by

                                  Hindsight being 20/20, it's a quick and cheap insurance to check continuity between ground pins on two interconnected things to rule out those issues before turning the power on. (It's not perfect, but, surprisingly effective for little effort)

                                  1 Reply Last reply Reply Quote 1
                                  • foxundefined
                                    fox @TheNewDude
                                    last edited by

                                    Wiring issue still relevant today. Plugged in using instructions, didn't work. I thought I fried my main board by reversing the wiring and seeing a puff of smoke and a flash. Turns out it was a fuse that strangely, was still good? Set up back the way they had wired it originally then moved blue pin to z-stop and it worked fine. Thank you for pointing out that the blue wire, and not the white wire is the sensor. Guess I got lucky, printer still heats up the bed, nozzle and all axis function properly...

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