G28 Error Homing failed



  • Had issues with printer not moving.
    Updated firmawar to 3.0

    Now this: Can't home.

    Firmware Name: RepRapFirmware for Duet 2 WiFi/Ethernet
    Firmware Electronics: Duet WiFi 1.02 or later
    Firmware Version: 3.0 (2020-01-03b3)
    WiFi Server Version: 1.23
    Web Interface Version: 1.22.6

    Config.g

    ; Configuration file for Duet WiFi (firmware version 3)
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool v2.1.8 on Sat May 09 2020 17:24:43 GMT-0400 (heure d’été de l’Est)

    ; General preferences
    G90 ; send absolute coordinates...
    M83 ; ...but relative extruder moves
    M550 P"He3D_K280" ; set printer name
    M665 R181.9354 L344 B140 H615 ; Set delta radius, diagonal rod length, printable radius and homed height
    M666 X0 Y0 Z0 ; put your endstop adjustments here, or let auto calibration find them

    ; Network
    M551 P"" ; set password
    M552 S1 ; enable network
    M586 P0 S1 ; enable HTTP
    M586 P1 S0 ; disable FTP
    M586 P2 S0 ; disable Telnet

    ; Drives
    M569 P0 S0 ; physical drive 0 goes forwards
    M569 P1 S0 ; physical drive 1 goes forwards
    M569 P2 S0 ; physical drive 2 goes forwards
    M569 P3 S1 ; physical drive 3 goes forwards
    M584 X0 Y1 Z2 E3 ; set drive mapping
    M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
    M92 X80.00 Y80.00 Z80.00 E663.00 ; set steps per mm
    M566 X1200.00 Y1200.00 Z1200.00 E1200.00 ; set maximum instantaneous speed changes (mm/min)
    M203 X18000.00 Y18000.00 Z18000.00 E1200.00 ; set maximum speeds (mm/min)
    M201 X1000.00 Y1000.00 Z1000.00 E1000.00 ; set accelerations (mm/s^2)
    M906 X1000 Y1000 Z1000 E800 I30 ; set motor currents (mA) and motor idle factor in per cent
    M84 S30 ; Set idle timeout

    ; Axis Limits
    M208 Z0 S1 ; set minimum Z

    ; Endstops
    M574 X1 S1 P"xstop" ; configure active-high endstop for low end on X via pin xstop
    M574 Y1 S1 P"ystop" ; configure active-high endstop for low end on Y via pin ystop
    M574 Z1 S1 P"null" ; configure active-high endstop for low end on Z via pin null

    ; Z-Probe
    ;M558 P1 C"zprobe.in+zprobe.mod" H5 F120 T6000 ; set Z probe type to unmodulated and the dive height + speeds
    ;M558 H30 ;*** Remove this line after delta calibration has been done and new delta parameters have been saved
    ;G31 P500 X0 Y0 Z2.5 ; set Z probe trigger value, offset and trigger height
    ;M557 R85 S20 ; define mesh grid

    ; Heaters
    M308 S0 P"bedtemp" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin bedtemp
    M950 H0 C"bedheat" T0 ; create bed heater output on bedheat and map it to sensor 0
    M143 H0 S120 ; set temperature limit for heater 0 to 120C
    M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit
    M140 H0 ; map heated bed to heater 0
    M308 S1 P"e0temp" Y"thermistor" T100000 B4138 ; configure sensor 1 as thermistor on pin e0temp
    M950 H1 C"e0heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1
    M143 H1 S280 ; set temperature limit for heater 1 to 280C
    M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit

    ; Fans
    M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency
    M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned off
    M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency
    M106 P1 S1 H1 T45 ; set fan 1 value. Thermostatic control is turned on

    ; Tools
    M563 P0 D0 H1 F0 ; 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

    ; Custom settings are not defined

    ; Miscellaneous
    M501 ; load saved parameters from non-volatile memory

    ; homedelta.g
    ; called to home all towers on a delta printer
    ;
    ; generated by RepRapFirmware Configuration Tool v2.1.8 on Sat May 09 2020 17:24:43 GMT-0400 (heure d’été de l’Est)

         ; move X+Y to the centre
    

    ;G91 ; relative positioning
    ;*** Slow homing has been configured. Change F360 to F3600 below when your configuration is working
    ;G1 H1 X625 Y625 Z625 F360 ; move all towers to the high end stopping at the endstops (first pass)
    ;G1 H2 X-5 Y-5 Z-5 F3600 ; go down a few mm
    ;G1 H1 X10 Y10 Z10 F360 ; move all towers up once more (second pass)
    ;G1 Z-5 F6000 ; move down a few mm so that the nozzle can be centred
    ;G90 ; absolute positioning
    ;G1 X0 Y0 F6000

    G28.png

    So what's going on


  • Moderator

    @Dr_Taragon said in G28 Error Homing failed:

    M574 Z1 S1 P"null" ; configure active-high endstop for low end on Z via pin null

    This probably has something to do with it. Try replacing null with zstop


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