Posts made by axiom

@droftarts Thanks for the advice! but unfortunately this solution is not supported for the Raspberry pi5 either... I'm seriously considering whether I should downgrade and get a Raspberry pi3 and save the pi5 until there are more solutions on the market but it's actually unusual that there are for current products have no solutions

@jens55 I get advice from a distance... and the advisor can help me better with the settings if he gets clear shots

@PCR because I want to do live surveillance with a camera and not just individual images

I purchased a Raspberry Pi 5 and discovered that there is no Octoprint available for it yet. Is there an alternative to communicate with the Raspberry pi 5 and the printer?

@fcwilt but you wrote to me that if my endstops are further down, then I can simply define the position, e.g. 4, with the G92 command... I need the information on how to automatically go deeper than 10 mm when referencing ...when it starts up it encounters the endstops...is the G91 command at the beginning perhaps wrong?

I'm just stuck...if my z-endstops are set to 4 and I want to reference...but the bed is already above the end stops, e.g. 2...then the bed moves into the head. So I currently have to move the bed below the endstops before referencing...how can I correct this in the z-home. Here are my files again:

; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v3.3.16 on Sun May 28 2023 15:23:44 GMT+0200 (Mitteleuropäische Sommerzeit)
G91 ; relative positioning
G1 H1 Z-1225 F4000 ; lift Z relative to current position
G1 Z10 ; back off a bit
G1 H1 Z-10 F300; slow move to min endstop
G92 Z4 ; home Z by probing the bed

; homex.g
; called to home the X axis
;
; generated by RepRapFirmware Configuration Tool v3.3.16 on Sun May 28 2023 15:23:44 GMT+0200 (Mitteleuropäische Sommerzeit)
G91 ; relative positioning
G1 H1 Z5 F4000 ; lift Z relative to current position
G1 H1 X-755 F4000 ; move quickly to X axis endstop and stop there (first pass)
G1 H1 X10 ; go back a few mm
G1 H1 X-10 F300 ; move slowly to X axis endstop once more (second pass)
G1 H1 Z-5 F4000 ; lower Z again
G92 X0 ; where ### is the actual axis position when the motion stopped - usually determined by testing
G1 x10

; homey.g
; called to home the Y axis
;
; generated by RepRapFirmware Configuration Tool v3.3.16 on Sun May 28 2023 15:23:44 GMT+0200 (Mitteleuropäische Sommerzeit)
G91 ; relative positioning
G1 H1 Z5 F4000 ; lift Z relative to current position
G1 H1 Y-643 F4000 ; move quickly to Y axis endstop and stop there (first pass)
G1 H2 Y10 ; go back a few mm
G1 H1 Y-10 F300 ; move slowly to Y axis endstop once more (second pass)
G1 H2 Z-5 F64000 ; lower Z again
G92 Y0 ;where ### is the actual axis position when the motion stopped - usually determined by testing
G1 y10

and homeall:

M98 P"homeY.g"

M98 P"homeX.g"

M98 P"homeZ.g"

; Configuration file for Duet WiFi (firmware version 3.3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.3.16 on Sun May 28 2023 15:23:44 GMT+0200 (Mitteleuropäische Sommerzeit)

; General preferences
M575 P1 S1 B57600 ; enable support for PanelDue
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"DUKA1300" ; set printer name

; Network
M552 S1 ; enable network
M586 P0 S1 ; enable HTTP
M586 P1 S1 ; enable FTP
M586 P2 S1 ; enable Telnet

; Drives
;M569 P4 R-1 ; Treiber 4 deaktivieren
;M569 P3 R-1 ; Treiber 4 deaktivieren
M569 P0 S1 ; physical drive 0 goes forwards
M569 P1 S1 ; physical drive 1 goes forwards
M569 P2 S1 ; physical drive 2 goes forwards
M569 P3 S1 ; physical drive 3 goes forwards
M569 P4 S0 ; physical drive 3 goes forwards
M569 P5 S1 ; physical drive 3 goes forwards Expansionboard
M569 P6 S1 ; physical drive 3 goes forwards Expansionboard
M569 P7 S1 ; physical drive 3 goes forwards Expansionboard
M569 P8 S1 ; physical drive 3 goes forwards Expansionboard
;M584 X0 Z2 E1 ; set drive mapping
;M584 X0 Z2 E1 ; set drive mapping
;M584 X0:4 Y1 Z2 E3 ; set drive mapping
M584 X0:4 Y1 Z5:6:7:8 E3 ; set drive mapping
M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z640 E322.58 ; set steps per mm
M566 X900.00 Y900.00 Z100.00 E120.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z300.00 E1200.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z40.00 E250.00 ; set accelerations (mm/s^2)
M906 X1800 Y1800 Z1700 E1600 I30 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1 ; set axis minima
M208 X750 Y643 Z1220 S0 ; set axis maxima

; Endstops
M574 X1 S1 P"xstop + e0stop" ; configure switch-type (e.g. microswitch) endstop for low end on X via pin xstop
M574 Y1 S1 P"ystop" ; configure switch-type (e.g. microswitch) endstop for low end on Y via pin ystop
M574 Z1 S1 P"duex.e2stop+duex.e3stop+duex.e4stop+duex.e5stop" ; configure switch-type (e.g. microswitch) endstop for low end on Y via pin ystop

; Z-Probe
M558 K0 P5 C"!zprobe.in" H5 F120 T6000 ; set Z probe type to unmodulated and the dive height + speeds (Kapazitiver Sensor)
M558 K1 P8 A2 S7 C"duex.e6stop" H5 F80 T3000
G31 P1000 K0 X0 Y-25 Z0.817 ; set Z probe trigger value, offset and trigger height (Kapazitiver Sensor)
M557 X0:735 Y-25:573 S35 ; define mesh grid

; Heaters

; Bed
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
M307 H0 R0.283 K0.463:0.000 D7.17 E1.35 S1.00 B0 ; enable bang-bang mode for the bed heater and set PWM limit
M140 H0 ; map heated bed to heater 0
M143 H0 S280 ; set temperature limit for heater 0 to 120C

;Hotend
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
M307 H1 R1.797 K0.742:0.000 D7.57 E1.35 S1.00 B0 V23.8 ; disable bang-bang mode for heater and set PWM limit
M143 H1 S400 ; set temperature limit for heater 1 to 400C

; 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 F2 C"fan1" Q350 ; create fan 2 on pin fan2 and set its frequency
M106 P2 S1 H1 T60 ; set fan 2 value. Thermostatic control is turned on

; Tools
M563 P0 D0 H1 F0 ; define tool 1
G10 P0 X0 Y0 Z0 ; set tool 1 axis offsets
G10 P0 R0 S0 ; set initial tool 1 active and standby temperatures to 0C

; Filamentsensor
M591 D0 P1 C"e1stop" S1 ;R40:120 E3.0 S1 Filament Sensor

;Auto Z-Offset
; Custom settings are not defined
M501

@fcwilt The glass plate and the bed are very large 700 x 800 mm. The natural fluctuation is approximately 1.2 mm across the entire surface. If I set my z-offset at a certain point, it can still happen that the bed is slightly higher at another point. When the printer then prints (despite bed leveling) and the glass is a little higher, it pushes the entire print head upwards, which pushes the nozzle into the glass. I thought this could be avoided with bed leveling and the tube.
Here is the current elevation map:

Even though I have a capacitive sensor, the print head still presses on the glass plate of the heated bed when there are bumps...can I set it differently so that this doesn't happen?

@fcwiltI have now adapted the home files according to your stage directions (see below) and removed the homeall.g as you said. when I click the reference button on the user interface , the error message comes up:

Now I don't know what homeall.g should look like?

Here are my new homing files:

; homex.g
; called to home the X axis
;
; generated by RepRapFirmware Configuration Tool v3.3.16 on Sun May 28 2023 15:23:44 GMT+0200 (Mitteleuropäische Sommerzeit)
G91 ; relative positioning
G1 H1 Z5 F6000 ; lift Z relative to current position
G1 H1 X-755 F6000 ; move quickly to X axis endstop and stop there (first pass)
G1 H1 X10 ; go back a few mm
G1 H1 X-10 F600 ; move slowly to X axis endstop once more (second pass)
G1 H1 Z-5 F6000 ; lower Z again
G92 X0 ; where ### is the actual axis position when the motion stopped - usually determined by testing

; homey.g
; called to home the Y axis
;
; generated by RepRapFirmware Configuration Tool v3.3.16 on Sun May 28 2023 15:23:44 GMT+0200 (Mitteleuropäische Sommerzeit)
G91 ; relative positioning
G1 H1 Z5 F6000 ; lift Z relative to current position
G1 H1 Y-643 F6000 ; move quickly to Y axis endstop and stop there (first pass)
G1 H2 Y10 ; go back a few mm
G1 H1 Y-10 F600 ; move slowly to Y axis endstop once more (second pass)
G1 H2 Z-5 F6000 ; lower Z again
G92 Y0 ;where ### is the actual axis position when the motion stopped - usually determined by testing

; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v3.3.16 on Sun May 28 2023 15:23:44 GMT+0200 (Mitteleuropäische Sommerzeit)
G91 ; relative positioning
G1 H1 Z-1230 F6000 ; lift Z relative to current position
G1 Z20 ; back off a bit
G1 H1 Z-20 F300 ; slow move to min endstop
G92 Z7,1 ; home Z by probing the bed

@droftarts Is there something to update for the Due5 expansion board...or is that okay?

@droftarts said in reference the X-axis on both rails:

You'll probably find it easier if you update to RRF 3.4.6, the current release. You shouldn't have to change your configuration.
Ian

Can I just click on it here, or do I have to prepare something?

@droftarts

@droftarts Deleting the spaces was the solution...it no longer gives an error
message and the g1 h1 z0 command works and the bed stops at the endstops...now I can continue researching! Thank you so much!!!!

@droftarts
I have now adjusted the names, but the endstops are still not accepted. Here is the message from the m119 command and the M98 P"config.g" command. And below again my adapted code

M98 P"config.g"

HTTP is enabled on port 80
FTP is enabled on port 21
TELNET is enabled on port 23
Error: in file macro line 50 column 65: M574: string too long
Warning: Macro file config-override.g not found
16.11.2023, 15:50:48

m119
Endstops - X: at min stop, Y: not stopped, Z: no endstop, Z probe: not stopped

All control LEDs respond...The 4 motors on the expansion board react and can be controlled

I think it's not a hardware error it is a DueX5 xspansionboard

again my adapted code:
; Configuration file for Duet WiFi (firmware version 3.3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.3.16 on Sun May 28 2023 15:23:44 GMT+0200 (Mitteleuropäische Sommerzeit)

; General preferences
M575 P1 S1 B57600 ; enable support for PanelDue
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"DUKA1300" ; set printer name

; Network
M552 S1 ; enable network
M586 P0 S1 ; enable HTTP
M586 P1 S1 ; enable FTP
M586 P2 S1 ; enable Telnet

; Drives
;M569 P4 R-1 ; Treiber 4 deaktivieren
;M569 P3 R-1 ; Treiber 4 deaktivieren
M569 P0 S1 ; physical drive 0 goes forwards
M569 P1 S1 ; physical drive 1 goes forwards
M569 P2 S1 ; physical drive 2 goes forwards
M569 P3 S1 ; physical drive 3 goes forwards
M569 P4 S0 ; physical drive 3 goes forwards
M569 P5 S1 ; physical drive 3 goes forwards Expansionboard
M569 P6 S1 ; physical drive 3 goes forwards Expansionboard
M569 P7 S1 ; physical drive 3 goes forwards Expansionboard
M569 P8 S1 ; physical drive 3 goes forwards Expansionboard
;M584 X0 Z2 E1 ; set drive mapping
;M584 X0 Z2 E1 ; set drive mapping
;M584 X0:4 Y1 Z2 E3 ; set drive mapping
M584 X0:4 Y1 Z5:6:7:8 E3 ; set drive mapping
M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z640 E322.58 ; set steps per mm
M566 X900.00 Y900.00 Z100.00 E120.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z300.00 E1200.00 ; set maximum speeds (mm/min)
;M201 X500.00 Y500.00 Z20.00 E250.00 ; set accelerations (mm/s^2)
M201 X500.00 Y500.00 Z40.00 E250.00 ; set accelerations (mm/s^2)
M906 X1800 Y1800 Z1700 E1600 I30 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X100 Y0 Z0 S1 ; set axis minima
M208 X750 Y640 Z1220 S0 ; set axis maxima

; Endstops
M574 X1 S1 P"xstop + e0stop" ; configure switch-type (e.g. microswitch) endstop for low end on X via pin xstop
M574 Y1 S1 P"ystop" ; configure switch-type (e.g. microswitch) endstop for low end on Y via pin ystop
M574 Z1 S1 P"duex.e2stop + duex.e3stop + duex.e4stop + duex.e5stop" ; configure switch-type (e.g. microswitch) endstop for low end on Y via pin ystop

; Z-Probe
;M558 K0 P1 C"e1stop" ;H5 F120 T6000
M558 K0 P5 C"!zprobe.in" H5 F120 T6000 ; set Z probe type to unmodulated and the dive height + speeds (Kapazitiver Sensor)
;M557 X0:735 Y-27:573 S35 ; define mesh grid

; Z-Probe two of them
;M558 K0 P1 C"!zprobe.in" H5 F120 T6000 ; set Z probe type to unmodulated and the dive height + speeds (Kapazitiver Sensor)
;M558 K1 P8 A2 S0.2 C"!zstop" H5 F80 T3000
;G31 P1000 K0 X-1 Y-61 Z0.484 ; set Z probe trigger value, offset and trigger height (Kapazitiver Sensor)
;G31 P1000 K1 X0 Y0 Z12.664 ; Second Z-offset
;M557 X0:735 Y-27:573 S35 ; define mesh grid

; Heaters

; Bed
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
;M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit
;M307 H2 R0.283 K0.463:0.000 D7.17 E1.35 S1.00 B0 ; enable bang-bang mode for the bed heater and set PWM limit
M307 H0 R0.283 K0.463:0.000 D7.17 E1.35 S1.00 B0 ; enable bang-bang mode for the bed heater and set PWM limit
M140 H0 ; map heated bed to heater 0
M143 H0 S280 ; set temperature limit for heater 0 to 120C

;Hotend
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
M307 H1 R1.797 K0.742:0.000 D7.57 E1.35 S1.00 B0 V23.8 ; disable bang-bang mode for heater and set PWM limit
M143 H1 S400 ; set temperature limit for heater 1 to 400C

; 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 F2 C"fan2" Q350 ; create fan 2 on pin fan2 and set its frequency
M106 P2 S1 H1 T60 ; set fan 2 value. Thermostatic control is turned on

; Tools
M563 P0 D0 H1 F0 ; define tool 1
G10 P0 X0 Y0 Z0 ; set tool 1 axis offsets
G10 P0 R0 S0 ; set initial tool 1 active and standby temperatures to 0C

; Filamentsensor
;M591 D0 P1 C"zstop" S1 ;R40:120 E3.0 S1 Filament Sensor

;Auto Z-Offset
; Custom settings are not defined
M501

@fcwilt ; General preferences
I have now installed the expansion board and wired everything up. All axes work and endstops also react. but with the m119 command the message Z comes: no endstop, what could be the problem...here is my current code

M575 P1 S1 B57600 ; enable support for PanelDue
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"DUKA1300" ; set printer name

; Network
M552 S1 ; enable network
M586 P0 S1 ; enable HTTP
M586 P1 S1 ; enable FTP
M586 P2 S1 ; enable Telnet

; Drives
;M569 P4 R-1 ; Treiber 4 deaktivieren
;M569 P3 R-1 ; Treiber 4 deaktivieren
M569 P0 S1 ; physical drive 0 goes forwards
M569 P1 S1 ; physical drive 1 goes forwards
M569 P2 S1 ; physical drive 2 goes forwards
M569 P3 S1 ; physical drive 3 goes forwards
M569 P4 S0 ; physical drive 3 goes forwards
M569 P5 S1 ; physical drive 3 goes forwards Expansionboard
M569 P6 S1 ; physical drive 3 goes forwards Expansionboard
M569 P7 S1 ; physical drive 3 goes forwards Expansionboard
M569 P8 S1 ; physical drive 3 goes forwards Expansionboard
;M584 X0 Z2 E1 ; set drive mapping
;M584 X0 Z2 E1 ; set drive mapping
;M584 X0:4 Y1 Z2 E3 ; set drive mapping
M584 X0:4 Y1 Z5:6:7:8 E3 ; set drive mapping
M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z640 E322.58 ; set steps per mm
M566 X900.00 Y900.00 Z100.00 E120.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z300.00 E1200.00 ; set maximum speeds (mm/min)
;M201 X500.00 Y500.00 Z20.00 E250.00 ; set accelerations (mm/s^2)
M201 X500.00 Y500.00 Z40.00 E250.00 ; set accelerations (mm/s^2)
M906 X1800 Y1800 Z1700 E1600 I30 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X100 Y0 Z0 S1 ; set axis minima
M208 X750 Y640 Z1220 S0 ; set axis maxima

; Endstops
M574 X1 S1 P"xstop + e0stop" ; configure switch-type (e.g. microswitch) endstop for low end on X via pin xstop
M574 Y1 S1 P"ystop" ; configure switch-type (e.g. microswitch) endstop for low end on Y via pin ystop
M574 Z1 S1 P"e2stop + e3stop + e4stop + e5stop" ; configure switch-type (e.g. microswitch) endstop for low end on Y via pin ystop

; Z-Probe
;M558 K0 P1 C"e1stop" ;H5 F120 T6000
M558 K0 P5 C"!zprobe.in" H5 F120 T6000 ; set Z probe type to unmodulated and the dive height + speeds (Kapazitiver Sensor)
;M557 X0:735 Y-27:573 S35 ; define mesh grid

; Z-Probe two of them
;M558 K0 P1 C"!zprobe.in" H5 F120 T6000 ; set Z probe type to unmodulated and the dive height + speeds (Kapazitiver Sensor)
;M558 K1 P8 A2 S0.2 C"!zstop" H5 F80 T3000
;G31 P1000 K0 X-1 Y-61 Z0.484 ; set Z probe trigger value, offset and trigger height (Kapazitiver Sensor)
;G31 P1000 K1 X0 Y0 Z12.664 ; Second Z-offset
;M557 X0:735 Y-27:573 S35 ; define mesh grid

; Heaters

; Bed
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
;M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit
;M307 H2 R0.283 K0.463:0.000 D7.17 E1.35 S1.00 B0 ; enable bang-bang mode for the bed heater and set PWM limit
M307 H0 R0.283 K0.463:0.000 D7.17 E1.35 S1.00 B0 ; enable bang-bang mode for the bed heater and set PWM limit
M140 H0 ; map heated bed to heater 0
M143 H0 S280 ; set temperature limit for heater 0 to 120C

;Hotend
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
M307 H1 R1.797 K0.742:0.000 D7.57 E1.35 S1.00 B0 V23.8 ; disable bang-bang mode for heater and set PWM limit
M143 H1 S400 ; set temperature limit for heater 1 to 400C

; 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 F2 C"fan2" Q350 ; create fan 2 on pin fan2 and set its frequency
M106 P2 S1 H1 T60 ; set fan 2 value. Thermostatic control is turned on

; Tools
M563 P0 D0 H1 F0 ; define tool 1
G10 P0 X0 Y0 Z0 ; set tool 1 axis offsets
G10 P0 R0 S0 ; set initial tool 1 active and standby temperatures to 0C

; Filamentsensor
;M591 D0 P1 C"zstop" S1 ;R40:120 E3.0 S1 Filament Sensor

;Auto Z-Offset
; Custom settings are not defined
M501

@fcwilt Thank you very much first of all... now I have to wait until the expansion board arrives (hopefully this week)... only then can I try it out and then report back... have a nice Sunday!
Cheers,
Don

@fcwilt or to put it another way...if I delete homeall.g, how do I correct homez.g?

@fcwilt What do I have to write into the Homing.g files instead of the G30 command?

@fcwilt Ok here they are:
; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v3.3.16 on Sun May 28 2023 15:23:44 GMT+0200 (Mitteleuropäische Sommerzeit)
G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G1 H1 X-755 Y-643 F1500 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 H2 X5 Y5 F6000 ; go back a few mm
G1 H1 X-755 Y-643 F360 ; move slowly to X and Y axis endstops once more (second pass)
G90 ; absolute positioning
G1 X10 Y10 F6000 ; go to first bed probe point and home Z
G30 ; home Z by probing the bed

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

; homex.g
; called to home the X axis
;
; generated by RepRapFirmware Configuration Tool v3.3.16 on Sun May 28 2023 15:23:44 GMT+0200 (Mitteleuropäische Sommerzeit)
G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G1 H1 X-755 F1500 ; move quickly to X axis endstop and stop there (first pass)
G1 H2 X5 F6000 ; go back a few mm
G1 H1 X-755 F360 ; move slowly to X axis endstop once more (second pass)
G1 H2 Z-5 F6000 ; lower Z again
G90 ; absolute positioning

; homey.g
; called to home the Y axis
;
; generated by RepRapFirmware Configuration Tool v3.3.16 on Sun May 28 2023 15:23:44 GMT+0200 (Mitteleuropäische Sommerzeit)
G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G1 H1 Y-643 F1500 ; move quickly to Y axis endstop and stop there (first pass)
G1 H2 Y5 F6000 ; go back a few mm
G1 H1 Y-643 F360 ; move slowly to Y axis endstop once more (second pass)
G1 H2 Z-5 F6000 ; lower Z again
G90 ; absolute positioning

; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v3.3.16 on Sun May 28 2023 15:23:44 GMT+0200 (Mitteleuropäische Sommerzeit)
G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G90 ; absolute positioning
G1 X1 Y61 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 Z5 F100 ; lift Z relative to current position
;G90 ; absolute positioning

@fcwilt Ok...with G1 H1 Z0 it works...homing is probably reserved for the probe