BL-Touch Z-Offset

Hallo zusammen,

ich habe meinen RatRig V-Cast Idex kürzlich fertig gestellt.
Soweit funktioniert alles wie es soll (Motoren, Endstops ect.)
Leider komme ich bei der Konfiguration des BL-Touch nicht weiter und bin langsam am verzweifeln.
Alles ist soweit in der Config eingerichtet und funktioniert, der BL-Touch dient als Z-Probe in der Mitte des Druckbetts.
Ich muss nun den korrekten Z-Offset einstellen, also gehe ich nach dieser Anleitung vor bl-touch guide
Ich starte also mit dem Wert G31 P25 X-29.75 Y-14.50 Z5 in der Config.g.
Da meine homez.g nach dem Homing einen Lift von 5mm vorsieht, müsste ich rein rechnerisch bei der Position Z10 rauskommen
Wenn ich im Webinterface "Alle Referenzieren" fahre wird mir nach dem Homing die Z Position mit 8,75 angezeigt.
Ich habe sowohl in der Config als auch in sämtlichen homing files nirgens einen Wert von 3,75 eingetragen,
eine Veränderung des G31 Z in der Config hat leider keinen Effekt (aktuell auf Z5 eingestellt zum gefahrlosen testen)



Board: Duet 2 Maestro mit Expansion Kit
Firmware: Duet Web Control 3.5.1 (vorher 3.1.1. Update hate leider nicht geholfen)

Config.g

; Configuration file for Duet WiFi (firmware version 3.1.1)
; executed by the firmware on start-up--

; General preferences
G90							; Send absolute coordinates...
M83							; ...but relative extruder moves

; Network
M550 P"VCast"						; Set machine name
M552 S1 P192.168.0.59					; Enable network
M553 P255.255.255.0 
M554 P192.168.0.1
M586 P0 S1						; Enable HTTP
M586 P1 S0						; Disable FTP
M586 P2 S0						; Disable Telnet

; Drives
M569 P0 S0			;Drive 0 (X1)
M569 P1 S0			;Drive 1 (Y)
M569 P2 S1			;Drive 2 (Z)
M569 P3 S0			;Drive 3 (E0)
M569 P4 S1			;Drive 4 (E1)
M569 P5 S0			;Drive 5 (X2)
;M569 P6 S1			;Drive 6 (nicht belegt)
M584 X0 Y1 Z2 U5 E3:4					                 ; Driver 0=X, 1=Y, 2+4=Z, 5+6=E0+E1
;M92 X160 Y80 Z800 U160 E830				         ; Set steps/mm
M92 X160 Y80 Z800 U160 E830                                     ; Set steps/mm
;M350 X16 Y16 Z16 U16 E16 I1				         ; Configure micro-stepping with interpolation for all drives
M350 X32 Y32 Z16 U16 E16 I1
M203 X12000 Y12000 Z1500 U12000 E3600	        ; Set maximum speeds (mm/min)
M201 X500 Y500 Z100 U500 E10000				; Set accelerations (mm/s^2)
M566 X600 Y600 Z60 U600 E1200				; Set maximum instantaneous speed changes (mm/min)
M906 X1000 Y1000 Z1000 U800 E500 I25			; Set motor currents (mA) and motor idle factor in per cent
M84 S30							                        ; Set idle timeout

; Axis Limits
M208 X-45 Y-20.00 Z0 U0 S1				; Set axes minima
M208 X310 Y320 Z270 U358 S0				; Set axes maxima

; Endstops
M574 X1 S1 P"!e0stop"					; Use an endstop on X, stop at low end
M574 Y1 S1 P"!ystop"					; Use an endstop on Y, stop at low end
M574 U2 S1 P"!e1stop"					; Use an endstop on U, stop at high end

; BLTouch Z-Probe
M574 Z1 S2						                        ; Define Z endstop at a probe
M558 P9 C"^zprobe.in" H5.0 F120 T24000 A5		; Set Z-Probe to type 9 for BLTouch mode, 5mm dive at 2mm/s, 5 attempts
M950 S0 C"zprobe.mod"					        ; Create a servo pin on Duex PWM5 header
G31 P25 X-29.75 Y-14.50 Z5			                        ; Set Z probe trigger value, nozzle offsets, and trigger height
M557 X15:280 Y15:280 P4					        ; Define a 5x5 bed mesh

; Heaters
M308 S0 P"bedtemp" Y"thermistor" T100000 B3950 C0	     ; Define Sensor0 as the heated bed temperature
M950 H0 C"bedheat" T0					                             ; Define Heater0 as the heated bed, bind to Sensor0
M140 H0 P0						                                     ; Define Heated Bed
M307 H0 A153.4 C224.4 D2.2 S1.00 V24.1 B0		             ; PID Tuning for Heater0, Heated Bed (45C)
M143 H0 S120						                             ; Set temperature limit for Heater0 to 120C
M308 S1 P"e0temp" Y"thermistor" B4725 C7.060000e-8	     ; Define Sensor1 as Extruder0 temperature
M950 H1 C"e0heat" T1				                                     ; Define Heater1 as Extruder0 heater, bind to Sensor1
;M307 H1 A495.8 C172.0 D3.8 S1.00 V24.1 B0		             ; PID Tuning for Heater1, X1 (200C)
M307 H1 B0 R2.332 C307.5:203.9 D8.90 S1.00 V24.1									;neues PID Tuning X1 (240C)
M143 H1 S285						                             ; Set temperature limit for heater 1 to 285C
M308 S2 P"e1temp" Y"thermistor" B4725 C7.060000e-8	     ; Define Sensor2 as Extruder1 temperature
M950 H2 C"e1heat" T2				                                     ; Define Heater2 as Extruder1 heater, bind to Sensor2
M307 H2 A589.3 C216.6 D4.4 S1.00 V24.1 B0		             ; PID Tuning for Heater1, X2 (200C)
M143 H2 S285						                             ; Set temperature limit for heater 2 to 285C
M308 S3 Y"mcu-temp" A"MCU"				                     ; Define Sensor3 as the integrated MCU temperature sensor
M308 S4 Y"drivers" A"TMC Drivers"			                     ; Define Sensor4 as the TMC overheat sensor

; Fans
;M950 F0 C"fan0" Q20000					; Define Fan0 for T0 Part Cooling
;M106 P0 S0 H-1 C"X1 Part Cooling"			; Set Fan0 to default off, manual control
;M950 F1 C"duex.fan3"					        ; Define Fan1 for T0 Hotend cooling
;M106 P1 H1 T45						        ; Set Fan1 to Thermostatic control, max RPM at 45C
;M950 F2 C"fan1" Q20000					; Define Fan2 for T1 Part Cooling
;M106 P2 S0 H-1 C"X2 Part Cooling"			; Set Fan2 to default off, manual control
;M950 F3 C"duex.fan4"					; Define Fan3 for T1 Hotend cooling
;M106 P3 H2 T45						; Set Fan3 to Thermostatic control, max RPM at 45C
;M950 F4 C"!duex.fan5"					; Define Fan4 for Electronics cooling (12V 3-pin PWM blower)
;M106 P4 H3:4 L0.3 T20:45				; Set Fan4 to Thermostatic control, PWM 20C to 45C (TMC overheat = 100% PWM)
M950 F0 C"fan0" Q20000
M106 P0 S0 H-1 C"X1 Part Cooling"
M950 F2 C"fan1" Q20000
M106 P2 S0 H-1 C"X2 Part Cooling"
M950 F3 C"fan2" Q20000
M106 P3 H2 T45

; Tools
M563 P0 D0 H1 F0 S"X1"					; Tool0 uses Extruder0, Heater1 and Fan0
G10 P0 X0 Y0 Z0 R0 S0					; Set Tool0 axis offsets and temperatures
;G10 P0 R0 S0   
;M563 P1 D1 H2 X3 F2 S"X2"				; Tool1 uses Extruder1, Heater2 and Fan2. X-axis is mapped to U
M563 P1 D1 H2 F1 S"X2"
G10 P1 X0 Y0 U0 Z0 R0 S0					; Set Tool1 axis offsets and temperatures
;G10 P1 R0 S0 

; Create a tool that prints 2 copies of the object using both carriages
M563 P2 D0:1 H1:2 X0:3 F0:2 S"Copy" ; tool 2 uses both extruders, hot end heaters and fans, and maps X to both X and U
G10 P2 X50 Y0 U-50 S0 R0 ; set tool offsets and temperatures
M567 P2 E1:1 ; set mix ratio 100% on both extruders

; Additional Settings
M671 X-93:393 Y150:150 S5.0				; Define Z-axis leadscrew positions for G32
M404 N1.75						                ; Define filament diameter for print monitor
M912 P0 S-7.5						        ; Calibrate MCU temperature
T0							                        ; Activate T0 by default
;T1
;G29 S1				;load Heightmap

; homeall.g
; Called to home all axes
;

; BLTouch preperation
M280 P0 S160														; Precautionary alarm release
M280 P0 S90															; Ensure the pin is raised

; Switch tool if required
if state.currentTool != 0
	T0 P0															; Switch to Tool0 which carries the Z-Probe (P0 skips tool files)

; Home X, Y and U simultaneously
G91																	; Relative positioning
G1 Z5 F6000 H2													; Lift Z relative to current position
G1 X-999 Y-999 U999 F6000 H1										; Move Y-axis to the endstop and stop (first pass)
G1 X5 Y5 U-5 F360													; Go back a few mm
G1 X-999 Y-999 U999 F360 H1											; Move Y-axis to the endstop once more (second pass)
G90																	; Absolute positioning

; Home Z using the Z-Probe
;M290 R0 S0															; Reset baby-stepping to 0
;G1 X34.75 Y19.50 F6000												; Move T0 to probing point (X5, Y5), including probe offset
G1 X179.75 Y164.5 F6000													; Probe Point in Bed Mitte
G30																; Probe the bed and set Z to the probe offset
G1 X-100 F6000														; Move X1 back to parked position

; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v2 on Sun Jun 23 2019 15:47:43 GMT-0400 (Eastern Daylight Time)
G91              ; relative positioning
G1 Z5 F6000 S2   ; lift Z relative to current position
G90              ; absolute positioning
G1 X156.5 Y128.5 F6000 ; go to first probe point
G30              ; home Z by probing the bed

; Uncomment the following lines to lift Z after probing
G91             ; relative positioning
G1 S2 Z5 F100   ; lift Z relative to current position
G90             ; absolute positioning

Vielleicht hat jemand von euch eine Idee was das Problem sein könnte.
Grüße
Marco