Z probe is not ok



  • i am beginner in printer 3D
    i have a IR sensor DC42
    About 4 seconds after power is applied, i have the 4 flash
    the Z probe does not work in the duet web control: it don't stop for the Home Z
    Thanks for your help

    ; Configuration file for Duet WiFi (firmware version 1.17)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool on Sat Apr 22 2017 19:59:56 GMT+0200

    ; 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

    M667 S1 ; Select CoreXY mode
    M208 X0 Y0 Z0 S1 ; Set axis minima
    M208 X300 Y290 Z300 S0 ; Set axis maxima

    ; Endstops
    M574 Z0 S0 ; Define active low and unused microswitches
    M574 X2 Y2 S1 ; Define active high microswitches
    M558 P1 X0 Y0 Z1 H5 F120 T6000 ; Set Z probe type to unmodulated, the axes for which it is used and the probe + travel speeds
    G31 P600 X0 Y0 Z2.5 ; Set Z probe trigger value, offset and trigger height
    M557 X15:285 Y15:285 S20 ; Define mesh grid

    ; Drives
    M569 P0 S1 ; Drive 0 goes backwards
    M569 P1 S0 ; Drive 1 goes backwards
    M569 P2 S1 ; Drive 2 goes forwards
    M569 P3 S1 ; Drive 3 goes forwards
    M350 X16 Y16 Z16 E16 I0 ; Configure microstepping without interpolation
    M92 X400 Y400 Z6400 E1674 ; Set steps per mm
    M566 X900 Y900 Z15 E120 ; Set maximum instantaneous speed changes (mm/min)
    M203 X6000 Y6000 Z200 E1200 ; Set maximum speeds (mm/min)
    M201 X500 Y500 Z30 E100 ; Set accelerations (mm/s^2)
    M906 X800 Y800 Z800 E800 I30 ; Set motor currents (mA) and motor idle factor in per cent
    M84 S30 ; Set idle timeout

    ; Heaters
    M143 S260 ; Set maximum heater temperature to 260C
    M140 H-1 ; Disable heated bed
    M305 P1 T100000 B4138 C0 R4700 ; Set thermistor + ADC parameters for 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

    ; Network
    M550 Pmaxprinter ; Set machine name
    M552 P192.168.0.109 S1 ; Enable network and set IP address
    M553 P255.255.255.0 ; Set netmask
    M554 P192.168.0.??? ; Set gateway

    ; Fans
    M106 P0 S1 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

    ; Miscellaneous
    T0 ; Select first tool

    ; homez.g
    ; called to home the Z axis
    ;
    ; generated by RepRapFirmware Configuration Tool on Sat Apr 22 2017 19:59:56 GMT+0200

    ; Lift Z relatively to current position
    G91
    G1 Z5 F6000

    ; Back to absolute positioning
    G90

    ; Go to first bed probe point and home the Z axis
    G1 X150 Y150 F6000
    G30

    ; Uncomment the following lines to lift Z after probing
    ;G91
    ;G1 Z5 F100
    ;G90

    ; homeall.g
    ; called to home all axes
    ;
    ; generated by RepRapFirmware Configuration Tool on Sat Apr 22 2017 19:59:56 GMT+0200

    ; Relative positioning
    G91

    ; Lift Z
    G1 Z5 F6000

    ; Course home X or Y
    G1 X305 Y305 F1800 S1
    ; Course home X
    G1 X305
    ; Course home Y
    G1 Y305

    : Move away from the endstops
    G1 X-5 Y-5 F6000

    ; Fine home X
    G1 X305 F360 S1
    ; Fine home Y
    G1 Y305 S1

    ; Absolute positioning
    G90

    ; Go to first bed probe point and home Z
    G1 X150 Y150 F6000
    G30

    ; Uncomment the following line to lift the nozzle after probing
    ;G1 Z5 F100


  • administrators

    This line is the problem:

    G31 P600 X0 Y0 Z2.5 ; Set Z probe trigger value, offset and trigger height

    As stated in the fitting instructions, you must always use a P parameter of 500 in the G31 command when using the IR sensor.



  • i must to declare my Z endstop (ir sensor) in the M574 command in config.g ?
    yet i don't have microswitch, it's not clear

    ok thanks DC42


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