Homing Y Max & Z



  • Having trouble configuring my CoreXY machine endstops

    this is my current config

    it homes and moves properly but when it homes Y the Y position shows 0 but since its homing to Y Max it should show Y 280

    also for my Z endstop I have it plugged into E0 endstop (Z probe) but i cant get it to trigger,

    ; Configuration file for Duet WiFi
    ; executed by the firmware on start-up
    ;
    ; generated by RepRapFirmware Configuration Tool on Sun Oct 23 2016 10:30:40 GMT-0400 (Eastern Standard Time)
    
    ; General preferences
    M111 S0 ; Debugging off
    G21 ; Work in millimetres
    G90 ; Send absolute coordinates...
    M83 ; ...but relative extruder moves
    M555 P2 ; Set firmware compatibility to look like RepRapFirmare
    
    M667 S1 ; Select CoreXY mode
    M208 X0 Y0 Z0 S1 ; Set axis minima
    M208 X280 Y280 Z300 S0 ; Set axis maxima
    
    ; Endstops
    M574 Z0 S0 ; Define active low and unused microswitches
    M574 X1 Y1 S1 ; Reverse Microswitches
    M558 P0 X0 Y0 Z0 H5 F120 T6000 ; Set Z probe type to switch, 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
    
    ; Drives
    M569 P0 S0 ; Drive X goes backwards
    M569 P1 S1 ; Drive Y goes forwards
    M569 P2 S0 ; Drive Z goes backwards
    M569 P3 S0 ; Drive E3D Titan goes backwards
    M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
    M92 X200 Y200 Z2560 E418.5 ; Set steps per mm
    M566 X900 Y900 Z12 E600 ; Set maximum instantaneous speed changes (mm/min)
    M203 X9000 Y9000 Z180 E3600 ; Set maximum speeds (mm/min)
    M201 X500 Y500 Z250 E250 ; 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 S280 ; Set maximum heater temperature to 280C
    M301 H0 S1.00 P10 I0.1 D200 T0.4 W180 B30 ; Use PID on bed heater (may require further tuning)
    M305 P0 T100000 B4138 C0 R4700 L0 H0 ; Set thermistor + ADC parameters for heater 0
    M305 P1 X200
    
    ; Tools
    M563 P0 D0 H1 ; Define tool 0
    G10 P0 X0 Y0 ; Set tool 0 axis offsets
    G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C
    
    ; Network
    M550 PTitanXY ; Set machine name
    M552 P0.0.0.0 S1 ; Enable network and acquire dynamic address via DHCP
    
    ; 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
    
    

    Here is my Z homing code

    ; homez.g
    ; called to home the Z axis
    ;
    ; generated by RepRapFirmware Configuration Tool on Sun Oct 23 2016 10:30:40 GMT-0400 (Eastern Standard Time)
    
    ; Lift Z relatively to current position
    G91
    G1 Z5 F6000
    G90
    
    ; Go to first bed probe point and home the Z axis
    G1 X15 Y15
    G30
    
    ; Uncomment the following lines to lift Z after probing
    ;G91
    ;G1 Z5 F100
    ;G90
    
    

    Here is my Y homing code

    ; homey.g
    ; called to home the Y axis
    ;
    ; generated by RepRapFirmware Configuration Tool on Sun Oct 23 2016 10:30:40 GMT-0400 (Eastern Standard Time)
    
    ; Lift Z relative to current position
    G91
    G1 Z5 F6000
    G90
    
    ; Move quickly to Y axis endstop and stop there (first pass)
    G1 Y285 F1800 S1
    
    ; Go back a few mm
    G91
    G1 Y-5 F6000
    G90
    
    ; Move slowly to X axis endstop once more (second pass)
    G1 Y285 F360 S1
    
    ; Lower Z again
    G91
    G1 Z-5 F6000
    G90
    
    

  • administrators

    Your M574 command has X1 Y1 which means low end homing switches. Use X2 Y2 if your switches are at the upper end of each axis.



  • make the second M574 line to be

    M574 X1 Y2 S1


 

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