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    Connecting multiple Z probes for multiple independent Z axis

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    • dc42undefined
      dc42 administrators @georgepaul
      last edited by

      @georgepaul said in Connecting multiple Z probes for multiple independent Z axis:

      what about on the hardware side... where can i put the additional probe pins?

      On Duet 2 you can connect digital-output Z probes to any endstop input as well as to the Z probe connector. On Duet 3 you can connect them to any of the nine IO_x connectors.

      Duet WiFi hardware designer and firmware engineer
      Please do not ask me for Duet support via PM or email, use the forum
      http://www.escher3d.com, https://miscsolutions.wordpress.com

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      • georgepaulundefined
        georgepaul
        last edited by

        so even a capacitive probe, working on 12V will not harm the Duet if the signal pin of probe is connected to any endstop STP pin.

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        • Vetiundefined
          Veti
          last edited by

          only on a duet2 v1.04 and up

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          • georgepaulundefined
            georgepaul
            last edited by

            mine says;

            M115
            FIRMWARE_NAME: RepRapFirmware for Duet 2 WiFi/Ethernet FIRMWARE_VERSION: 2.0(RTOS) ELECTRONICS: Duet WiFi 1.02 or later + DueX5 FIRMWARE_DATE: 2018-06-05b3

            so I guess it's not compatible!

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            • Vetiundefined
              Veti @georgepaul
              last edited by

              @georgepaul

              the firmware can not see which hardware revision you have, at those changes are independant of the firmware.

              its printed on the pcb

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              • georgepaulundefined
                georgepaul
                last edited by

                ok then im safe... my hardware says Duet2 V1.04... yippie🤗

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                • georgepaulundefined
                  georgepaul
                  last edited by

                  Ok so i did connect a Zprobe and got it working. I made the following changes and it worked for the NPN inductive sensor that I scavenged.
                  ZProbe.png

                  I made the following wiring. I used the IN4007 because i dint have anything else on me.

                  The following config changes were done;

                  **; Endstops
                  M574 X1 Y1 U1 S0 ; Set active low and disabled endstops
                  M574 Z1 S2

                  ; Z-Probe
                  M558 P1 I1 H5 F120 T6000
                  M557 X25:0 Y25:0 S20 ; Define mesh grid**

                  and it worked fine.

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                  • georgepaulundefined
                    georgepaul
                    last edited by

                    Then i tried using theProbe for the U axis and i made this tiny change in the config.g file;

                    ; Endstops
                    M574 X1 Y1 Z1 S0 ; Set active low and disabled endstops
                    M574 U1 S2

                    And that too worked fine

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                    • georgepaulundefined
                      georgepaul
                      last edited by

                      my doubt is whether this can be done;

                      ZProbe.png

                      and if i wanted to connect two probes can one more be connected in the E0 endstop STP pin for the U axis?

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                      • georgepaulundefined
                        georgepaul
                        last edited by

                        i am just making sure i don't fry the board by doing something wrong😇

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