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    Before i blow my board . 3d touch help

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    Duet Hardware and wiring
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    • Richard Fundefined
      Richard F
      last edited by

      0_1553101331886_IMG_2538.JPG

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      • Phaedruxundefined
        Phaedrux Moderator
        last edited by

        Definitely looks like an older style probe.

        Did it include any instructions on where it suggests you use the resistor?

        Z-Bot CoreXY Build | Thingiverse Profile

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        • Richard Fundefined
          Richard F
          last edited by

          came with no paperwork :{

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          • Richard Fundefined
            Richard F
            last edited by

            does the 240 ohm sit on the black wire ?

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            • Phaedruxundefined
              Phaedrux Moderator
              last edited by

              From what I can tell from googling this is it maybe? http://www.geeetech.com/wiki/index.php/3DTouch_Auto_Leveling_Sensor#Electrical

              https://www.aliexpress.com/item/3DTouch-3D-Auto-Leveling-Sensor-With-Auto-Leveling-Feature-For-3D-Printer-Free-Shipping/32723240651.html

              It definitely says it comes with a 10k resistor, but the instructions don't mention anything about it and only over connecting to ramps.

              Z-Bot CoreXY Build | Thingiverse Profile

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              • Richard Fundefined
                Richard F
                last edited by

                i think its to connect a led to the white black wire for debugging

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                • Phaedruxundefined
                  Phaedrux Moderator
                  last edited by

                  From the Duet BLTouch documentation:

                  https://duet3d.dozuki.com/Wiki/Connecting_a_Z_probe#Section_BLTouch

                  For all Duet 2 WiFi/Ethernet boards prior to version 1.04
                  If you have the older BLTouch, also connect the 240 ohm resistor between Probe GND and Probe IN. On the newer BLTouch, cut the PCB trace on the BLTouch to reduce the output to 3.3V as described in the BLTouch instructions.

                  The Z probe input on the Duet 2 Maestro and Duet 2 WiFi/Ethernet rev 1.04 and later is 30V tolerant, so it doesn't matter whether you reduce the output of the BLTouch to 3.3V or leave it at 5V.

                  Z-Bot CoreXY Build | Thingiverse Profile

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                  • Richard Fundefined
                    Richard F
                    last edited by Richard F

                    0_1553102170917_Duet_Wifi2_2048x2048.png

                    like this ?

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                    • Phaedruxundefined
                      Phaedrux Moderator
                      last edited by

                      That looks correct.

                      Z-Bot CoreXY Build | Thingiverse Profile

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                      • Richard Fundefined
                        Richard F @Phaedrux
                        last edited by

                        @phaedrux ok thanks for your help :}

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                        • Delerundefined
                          Deler @Richard F
                          last edited by

                          Hi @richard-f did it work with 10K resistor? and did you connect it between black and white wire?

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