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    Z Endstop not working

    Tuning and tweaking
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    • Tinroof866
      Tinroof866 last edited by

      Im in need of some help on setting up my Duet Wifi Z endstop.
      My mechanical z endstops wont stop the axis when homing. When i give a z home command the z axis moves in the correct direction and when the switch is activated the LED for the end stop lights up for the Z axis on the duet WiFi, the light activates on the endstop, M119 states z min. activated, and under machine properties it says yes under enstop hit for z axis, but it wont stop.
      Wiring is as follows on the endstop green = out, red= +3v, blk = gnd…On the Duet green=in, red = +3v, blk=gnd.

      The mini ir probe works when programmed. I just want to set a z endstop for now until i can get some proper brackets made for the z probe and my extruder and then i will switch back to ABL.
      Any help is much appreciated.

      Configuration file for Duet WiFi (firmware version 1.17)
      ; executed by the firmware on start-up
      ;
      ; generated by RepRapFirmware Configuration Tool on Sun Apr 30 2017 22:23:07 GMT-0400 (Eastern Daylight Time)

      ; General preferences
      M111 S0 ; Debugging off
      G21 ; Work in millimetres
      G90 ; Send absolute coordinates...
      ;M83 ; ...but relative extruder moves
      M555 P1 ; Set firmware compatibility to look like RepRapFirmare
      M208 X0 Y0 Z0 S1 ; Set axis minima
      M208 X350 Y205 Z220 S0 ; Set axis maxima

      ; Endstops
      M574 X1 Y2 Z1 S0 ; Define active high microswitches
      ;M558 P1 X0 Y0 Z1 F120 T6000 ; Set Z probe type to unmodulated, the axes for which it is used and the probe + travel speeds
      ;G31 P500 X0 Y0 Z2.47 ; Set Z probe trigger value, offset and trigger height
      ;M557 X15:350 Y15:195 S50 ; Define mesh grid

      ; Drives
      M569 P0 S1 ; Drive 0 goes fowwards
      M569 P1 S1 ; Drive 1 goes forwards
      M569 P2 S0 ; Drive 2 goes forwards
      M569 P3 S0 ; Drive 3 goes forwards
      M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
      M92 X81 Y80 Z1600 E962 ; Set steps per mm
      M566 X900 Y900 Z12 E120 ; Set maximum instantaneous speed changes (mm/min)
      M203 X6000 Y6000 Z6000 E300 ; Set maximum speeds (mm/min)
      M201 X750 Y750 Z250 E100 ; Set accelerations (mm/s^2)
      M906 X800 Y1000 Z1000 E1200 I30 ; Set motor currents (mA) and motor idle factor in per cent
      M84 S30 ; Set idle timeout

      ; Heaters
      M143 S280 ; Set maximum heater temperature to 285C
      M307 H1 A1103.7 C242.6 D7.3 S1 B0
      M305 P0 T100000 B3950 C0 R4700 ; Set thermistor + ADC parameters for heater 0
      M305 P1 T100000 B4725 C7.06e-8 R4700 ; Set thermistor + ADC parameters for heater 1 ; Heater 1

      ; Tools
      M563 P0 D0 H1 ; Define tool 0
      G10 P0 X0 Y0 Z0 ; Set tool 0 axis offsets
      G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C

      ;*** If you have more than one Duet on your network, they must all have different MAC addresses, so change the last digits
      M540 P0xBE:0xEF:0xDE:0xAD:0xFE:0xED ; MAC Address
      ;*** Adjust the IP address and gateway in the following 2 lines to suit your network
      M552 P0.0.0.0 ; IP address (0 = use DHCP)
      M554 P10.0.0.2 ; Gateway
      M553 P255.255.255.0 ; Netmask
      M555 P2 ; Set output to look like Marlin
      M575 P1 B57600 S1 ; Comms parameters for PanelDue

      ; Fans
      M106 P0 S0.3 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
      M106 P1 S1 I0 F500 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
      M106 P2 S1 I0 F500 H1 T45 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on

      ; Custom settings are not configured

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      • Tinroof866
        Tinroof866 last edited by

        I have the z stop working. Went back through the configurator and let it set it up again and i see the where i went wrong.

        Thanks

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        • Luxin
          Luxin last edited by

          Hi Tinroof - What was the issue? I am researching s similar problem and would like to learn how you solved it.

          D-Bot

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          • Kulitorum
            Kulitorum last edited by

            Me too.

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            • Kulitorum
              Kulitorum last edited by

              Turns out the z-endstop is hardwired to E0, so thats where you connect it.

              My endstops (normal open) are defined as:

              M574 X1 Y1 Z1 U1 E0 S0 ; Define active low and unused microswitches

              Kulitorum

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              • dc42
                dc42 administrators last edited by

                @Kulitorum:

                Turns out the z-endstop is hardwired to E0, so thats where you connect it.

                My endstops (normal open) are defined as:

                M574 X1 Y1 Z1 U1 E0 S0 ; Define active low and unused microswitches

                Kulitorum

                I think you are confusing the Z endstop and the Z probe. You must select whether you use an endstop switch or a Z probe to do Z homing, in the homing files. See https://duet3d.com/wiki/Configuring_RepRapFirmware_for_a_Cartesian_printer#Homing_Z_using_a_Z_probe and thre section after that one.

                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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                • Kulitorum
                  Kulitorum last edited by

                  Well, I have a microswitch mounted on my X axis printhead and use it for z endstop and for z probe. Its is mounted offset in both X, Y and Z (lifted 5mm) in a way that it can sample 3 points on the printbed, while the nozzle is outside of the printbed. Totally stole the idea from the BCN3D Sigma 🙂

                  But I am now installing a BLTouch.

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