Homing Y Max & Z

Adamfilip

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

dc42

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.

Dougal1957

make the second M574 line to be

M574 X1 Y2 S1