Endstops High / Low & Homing fail

Knauthobot

I installed a Duet 3 Mini 5+ on an old 3D-Printer (German Rep Rap X400)
This the first time that i configured the Whole config file and a did a few "Mistakes" in the config tool.

I think i set the Endstops wrong, i should have set the endstops to "high endstops".
In General the Printer works fine, but when i home the Origin is in the far right Corner, in the Slicer and Height-Map its in the Front left.

; Endstops
M574 X1 P"io4.in" S1 ; configure X axis endstop
M574 Y1 P"io1.in" S1 ; configure Y axis endstop
M574 Z1 S2 ; configure Z axis endstop

This is my Endstop configuration. When i switch to X2 and Y2, the printhead will "crash" in the endstops when i use "home all".
I think he finds the Homing-Point the first time, but then crashes when he does the "move back 5mm" movement in the "homeall.g". But i am not 100% sure that it does not "crash" into the endstop in the first run.

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v3.5.4 on Wed Sep 18 2024 15:15:32 GMT+0200 (Mitteleuropäische Sommerzeit)

; increase Z
G91 ; relative positioning
G1 H2 Z2 F6000 ; move Z relative to current position to avoid dragging nozzle over the bed
G90 ; absolute positioning

; home XY
var xTravel = move.axes[0].max - move.axes[0].min + 5 ; calculate how far X can travel plus 5mm
var yTravel = move.axes[1].max - move.axes[1].min + 5 ; calculate how far Y can travel plus 5mm
G91 ; relative positioning
G1 H1 X{-var.xTravel} Y{-var.yTravel} F3000 ; coarse home in the -X and -Y directions
G1 H2 X5 Y5 F6000 ; move back 5mm
G1 H1 X{-var.xTravel} Y{-var.yTravel} F300 ; fine home in the -X and -Y directions
G90 ; absolute positioning

; home Z
var xCenter = move.compensation.probeGrid.mins[0] + (move.compensation.probeGrid.maxs[0] - move.compensation.probeGrid.mins[0]) / 2 - sensors.probes[0].offsets[0]
var yCenter = move.compensation.probeGrid.mins[1] + (move.compensation.probeGrid.maxs[1] - move.compensation.probeGrid.mins[1]) / 2 - sensors.probes[0].offsets[1]
G1 X{var.xCenter} Y{var.yCenter} F6000 ; go to bed centre
G30 ; probe the bed

Thats my whole homeall.g
I am no pro and tried to find this case in the Forum but had no luck.

Maybe you have an idea to fix this issue. I would appreciate the help.

Phaedrux

Decide where you want X0 Y0 to be. Popular choices are the front left corner of the bed, or the centre of the bed.
Decide which direction you want to be positive X and which direction should be positive Y. Usually positive X is to the right and positive Y is away from you. Other directions are possible but be sure to choose a right hand coordinate system.
Adjust the motor directions in M569 in config.g to get positive X and Y movements in the desired direction.
Establish whether your endstop switches are high end (at axis maximum) or low end (at axis minimum) and configure the endstops accordingly in the M574 commands in config.g.
Adjust your homing files so that the homing move will go towards the endstop.

Knauthobot

@Phaedrux Thx i was too dumb to see that i have to change the motor directions and edit the homing files so that it goes in the right direction.
Now this issue is solved, thanks a lot