Duet3D Logo

    Duet3D

    • Register
    • Login
    • Search
    • Categories
    • Tags
    • Documentation
    • Order

    Beware of braindead BLTouch wiring.

    Purchasing
    6
    17
    4910
    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.
    • TheNewDude
      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.

      1 Reply Last reply Reply Quote 0
      • Veti
        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

        1 Reply Last reply Reply Quote 0
        • MartinNYHC
          MartinNYHC last edited by

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

          1 Reply Last reply Reply Quote 0
          • Phaedrux
            Phaedrux Moderator last edited by

            Is it this kit?

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

            Z-Bot CoreXY Build | Thingiverse Profile

            Veti 1 Reply Last reply Reply Quote 0
            • Veti
              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

              1 Reply Last reply Reply Quote 1
              • TheNewDude
                TheNewDude last edited by

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

                1 Reply Last reply Reply Quote 0
                • TheNewDude
                  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.

                  1 Reply Last reply Reply Quote 1
                  • TheNewDude
                    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.

                    1 Reply Last reply Reply Quote 0
                    • Phaedrux
                      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

                      1 Reply Last reply Reply Quote 1
                      • TheNewDude
                        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

                        fox 1 Reply Last reply Reply Quote 3
                        • Veti
                          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

                          1 Reply Last reply Reply Quote 1
                          • TheNewDude
                            TheNewDude last edited by

                            You can only connect this cable one way.

                            1 Reply Last reply Reply Quote 0
                            • TheNewDude
                              TheNewDude last edited by

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

                              1 Reply Last reply Reply Quote 0
                              • 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
                                • fox
                                  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...

                                  1 Reply Last reply Reply Quote 0
                                  • First post
                                    Last post
                                  Unless otherwise noted, all forum content is licensed under CC-BY-SA