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X Endstop not being recognized

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Duet Hardware and wiring
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  • undefined
    Veti
    last edited by 26 Oct 2019, 06:57

    to check the endstop with a multimeter.

    set it to measure ohm (resistance)

    now the meter should show something that represents infinite. if you make the black and red probe of the multimeter touch it should show something close to 0 or 0.

    now unplug the endstop from the duet. there should be two wires going into the molex connector.
    each wire should have a small exposed metal area on the side of the connector. make the multimeter probes each touch one of those area.
    depending on the switch the multimeter should read:
    NO : infinite
    NC : close to 0
    then you then trigger the switch it should now switch to the other value.

    if it does not toggle, measure directly on the switch itself. there are there wires comming out of the switch. use the 2 side ones.

    if it now toggles, the wires or crimps in the cable are bad. if it does not, then the switch is broken.

    undefined 1 Reply Last reply 26 Oct 2019, 08:15 Reply Quote 0
    • undefined
      dc42 administrators @Veti
      last edited by 26 Oct 2019, 08:15

      @BearcatTD, is it a microswitch endstop, or some other type?

      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

      undefined 1 Reply Last reply 26 Oct 2019, 09:05 Reply Quote 0
      • undefined
        Veti @dc42
        last edited by 26 Oct 2019, 09:05

        @dc42
        he is setting up his ender 3 with a duet wifi.
        the ender 3 is using micro switches as endstops.

        1 Reply Last reply Reply Quote 0
        • undefined
          dc42 administrators
          last edited by 26 Oct 2019, 09:44

          @BearcatTD, please send M574 without parameters from the console and see what the response is. I want to check that the endstop configuration is as you specified in config.g.

          If the configuration is correct and the hardware is working, it should read "stopped" when the LED is off and "not stopped" when the LED is on.

          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

          undefined 1 Reply Last reply 26 Oct 2019, 13:27 Reply Quote 0
          • undefined
            BearcatTD @dc42
            last edited by 26 Oct 2019, 13:27

            @dc42

            When I send the M574 command with the endstop triggered and untriggered I get the same response, " Endstop configuration: X; low end active high, Y; low end active high; Z; low end z probe.

            When I trigger the endstop the led on the board goes out and comes back on when I release the endstop.

            Thanks!

            Professor of Theatre, Lighting and Scenic Designer, Northwest Missouri State University

            Hardware: Ender 3 with a Duet 2 wifi, CR-10 V2 with a Duet3

            undefined 1 Reply Last reply 26 Oct 2019, 13:40 Reply Quote 0
            • undefined
              dc42 administrators @BearcatTD
              last edited by 26 Oct 2019, 13:40

              @BearcatTD said in X Endstop not being recognized:

              @dc42

              When I send the M574 command with the endstop triggered and untriggered I get the same response, " Endstop configuration: X; low end active high, Y; low end active high; Z; low end z probe.

              When I trigger the endstop the led on the board goes out and comes back on when I release the endstop.

              Thanks!

              If you unplug the X endstop connector from the Duet completely, does M119 show it as triggered or not triggered? If it shows it as not triggered, that suggests a hardware fault on the Duet.

              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

              1 Reply Last reply Reply Quote 0
              • undefined
                BearcatTD
                last edited by 26 Oct 2019, 13:48

                Both triggered and untriggered shows the same response. Endstops -X:not stopped, Y: at min stop, Z not stopped, Z probe: not stopped.

                Does it matter that the led on the board is responding when I engage the endstop?!

                Professor of Theatre, Lighting and Scenic Designer, Northwest Missouri State University

                Hardware: Ender 3 with a Duet 2 wifi, CR-10 V2 with a Duet3

                1 Reply Last reply Reply Quote 0
                • undefined
                  BearcatTD
                  last edited by 26 Oct 2019, 14:36

                  If I unplug the connector I get:

                  "Endstops - X: at min stop, Y: at min stop, Z:not stopped, Z probe not stopped"

                  Professor of Theatre, Lighting and Scenic Designer, Northwest Missouri State University

                  Hardware: Ender 3 with a Duet 2 wifi, CR-10 V2 with a Duet3

                  1 Reply Last reply Reply Quote 0
                  • undefined
                    Veti
                    last edited by Veti 26 Oct 2019, 14:37

                    did you swap x and y by accident?

                    1 Reply Last reply Reply Quote 0
                    • undefined
                      BearcatTD
                      last edited by 26 Oct 2019, 14:44

                      (https://www.dropbox.com/s/urfze0jxykpspvo/IMG_3413.jpg?dl=0)

                      Black is the X endstop White is the Y

                      Professor of Theatre, Lighting and Scenic Designer, Northwest Missouri State University

                      Hardware: Ender 3 with a Duet 2 wifi, CR-10 V2 with a Duet3

                      1 Reply Last reply Reply Quote 0
                      • undefined
                        Veti
                        last edited by 26 Oct 2019, 14:50

                        black is plugged into e0 endstop and white is plugged into x

                        1 Reply Last reply Reply Quote 0
                        • undefined
                          BearcatTD
                          last edited by 26 Oct 2019, 14:57

                          Sweet Jesus. I'm so sorry for wasting everyone's time.

                          Pat

                          Professor of Theatre, Lighting and Scenic Designer, Northwest Missouri State University

                          Hardware: Ender 3 with a Duet 2 wifi, CR-10 V2 with a Duet3

                          undefined 1 Reply Last reply 26 Oct 2019, 15:20 Reply Quote 1
                          • undefined
                            fcwilt @BearcatTD
                            last edited by 26 Oct 2019, 15:20

                            @BearcatTD said in X Endstop not being recognized:

                            Sweet Jesus. I'm so sorry for wasting everyone's time.

                            Pat

                            Problems like yours can be hard to diagnose over the internet because we sometimes make assumptions that the basics, like things plugged into the correct connector, have already been verified.

                            Glad to hear you got it sorted.

                            Frederick

                            Printers: a small Utilmaker style, a small CoreXY and a E3D MS/TC setup. Various hotends. Using Duet 3 hardware running 3.4.6

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