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    Solved BLTouch logic conversion

    Duet Hardware and wiring
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    • Harley3D
      Harley3D last edited by

      I think i saw somewhere that on the newer Duet3D WiFi 1.04 boards you don't need to cut the copper line logic conversion on the BLTouch Smart. Is there any truth to this?

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      • Phaedrux
        Phaedrux Moderator last edited by

        Yes it should work fine without the trace cut. If it doesn't seem to behave properly, cut the trace.

        Z-Bot CoreXY Build | Thingiverse Profile

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        • Phaedrux
          Phaedrux Moderator last edited by

          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.

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

          Z-Bot CoreXY Build | Thingiverse Profile

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          • tenjin
            tenjin last edited by

            i didnt cut any traces,. and works fine

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            • Harley3D
              Harley3D last edited by

              Thanks, Worry over!

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