Upgrade from Duet 2 wifi to Duet 3 6hc config Issues

cosmowave

@Alijambo73 What type is your z probe? Is it like a switch?

droftarts

@Alijambo73 Your home Z uses G30 to home, which is using the probe, not the Z endstops. If you want to use the Z endstops, you need to change homez.g to use them. Currently in homez.g you have:

; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v3.5.4 on Mon Sep 09 2024 22:47:08 GMT-0600 (Mountain Daylight Time)
 
; increase Z
G91 ; relative positioning
G1 H2 Z5 ; move Z relative to current position to avoid dragging nozzle over the bed
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} F7200 ; go to bed centre
G30 ; probe the bed

Change it to:

; home Z
var zTravel = move.axes[2].max - move.axes[2].min + 5 ; calculate how far Z can travel plus 5mm
G91                                                   ; relative positioning
G1 H1 Z{-var.zTravel} F600                            ; coarse home in the -Z direction
G1 H2 Z5 F6000                                        ; move back 5mm
G1 H1 Z-10 F300                                       ; fine home in the -Z direction
G90                                                   ; absolute positioning

You will need to change the 'home Z' section of homeall.g too. You should also be able to home Z without having to home X and Y first.

Ian

Alijambo73

@droftarts I'm using a touch plate like this.

droftarts

@Alijambo73 You want to use a probe like that for setting tool offsets, not for homing the Z axis. Please try what I suggest in my last post.

Note that those type of probes are not much good for setting work offsets in X and Y. This type of probe is better: https://ooznest.co.uk/product/original-workbee-xyz-touch-probe/

Ian

Alijambo73

@droftarts on my duet 2 board this all worked fine and I used the probe to determine 0 for the work peice while the microswitches were used for homing z.

I have changed the homez and homeall but still getting the 2 errors

Error: in file macro line 14: G1: target position outside machine limits

Error: in file macro line 14: G1: insufficient axes homed

This is how they read now.

Home z.g

; home Z
var zTravel = move.axes[2].max - move.axes[2].min + 5 ; calculate how far Z can travel plus 5mm
G91                                                   ; relative positioning
G1 H1 Z{-var.zTravel} F600                            ; coarse home in the -Z direction
G1 H2 Z5 F6000                                        ; move back 5mm
G1 H1 Z-10 F300                                       ; fine home in the -Z direction
G90                                                   ; absolute positioning

homeall.g

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v3.5.4 on Mon Sep 09 2024 22:47:08 GMT-0600 (Mountain Daylight Time)

; increase Z
G91                                                   ; relative positioning
G1 H2 Z5 F7200                                        ; 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} F6000           ; coarse home in the -X and -Y directions
G1 H2 X5 Y5 F7200                                     ; 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 zTravel = move.axes[2].max - move.axes[2].min + 5 ; calculate how far Z can travel plus 5mm
G91                                                   ; relative positioning
G1 H1 Z{-var.zTravel} F600                            ; coarse home in the -Z direction
G1 H2 Z5 F6000                                        ; move back 5mm
G1 H1 Z-10 F300                                       ; fine home in the -Z direction
G90                                                   ; absolute positioning

droftarts

@Alijambo73 Can you describe, from turning on the machine, exactly what you are doing, and post all the responses coming back from the console? ie of the two errors you report above, which is from running homez.g, and which is from running homeall.g?

Somehow, it seems some other macro is being called, and it's that macro that has got the error in it. Please could you zip your whole sys folder (so it has all the files) from your SD card and post it here? If you add '.txt' to the end after .zip, you should be able to upload it to the forum.

Ian

Alijambo73

@droftarts after power up if I use home z I get " Error: in file macro line 14: G1: insufficient axes homed"

If I then home x and y, then use home z i get "Error: in file macro line 14: G1: target position outside machine limits"

After power up if I hit homeall (this is new) it will home correctly but then if I try to lower Z by -25 it tries to raise z even though the endstops are triggered.

This just keeps getting more weird.

download (1).zip.txt

dc42

@Alijambo73 said in Upgrade from Duet 2 wifi to Duet 3 6hc config Issues:

after power up if I use home z I get " Error: in file macro line 14: G1: insufficient axes homed"

This is normal if homeZ uses the Z probe to home, because you would be probing at a random position, possibly off the bed.

If I then home x and y, then use home z i get "Error: in file macro line 14: G1: target position outside machine limits"

You are doing this:

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} F7200 ; go to bed centre

My guess is that the calculation of yCenter and/or xCenter is going wrong. Have you set up the grid in config.g? Why not use bed centre calculated from the M208 limits instead?

Alijambo73

@dc42 I don't want it to use the center of the bed. I want the z to home at x0 y0.
I inverted the zprobe and it now reads 0 in DWC and I changed this line

G1 H1 Z{-var.zTravel} F600                            ; coarse home in the -Z direction

to

G1 H1 Z{var.zTravel} F600                            ; coarse home in the -Z direction

I also reversed the direction on the Z steppers and now the homeall seems works correctly.

If I try to just home Z i get "G28 Z
Error: Failed to home axes Z"

Here is the homeall.g that is working

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v3.5.4 on Mon Sep 09 2024 22:47:08 GMT-0600 (Mountain Daylight Time)

; increase Z
G91                                                   ; relative positioning
G1 H2 Z5 F7200                                        ; 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} F6000           ; coarse home in the -X and -Y directions
G1 H2 X5 Y5 F7200                                     ; 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 zTravel = move.axes[2].max - move.axes[2].min + 5 ; calculate how far Z can travel plus 5mm
G91                                                   ; relative positioning
G1 H1 Z{var.zTravel} F600                            ; coarse home in the -Z direction
G1 H2 Z5 F6000                                        ; move back 5mm
G1 H1 Z-10 F300                                       ; fine home in the -Z direction
G90                                                   ; absolute positioning

Here is the homez.g that is giving the error

; home Z

G91                                                     ; relative positioning
var maxTravel = move.axes[2].max - move.axes[2].min + 5 ; calculate how far Z can travel plus 5mm
G1 H1 Z{var.maxTravel} F600                             ; coarse home in the +Z direction
G1 Z-5 F6000                                            ; move back 5mm
G1 H1 Z{var.maxTravel} F300                             ; fine home in the +Z direction
G90                                                     ; absolute positioning

Phaedrux

@Alijambo73 said in Upgrade from Duet 2 wifi to Duet 3 6hc config Issues:

G1 H1 Z{var.zTravel} F600

@Alijambo73 said in Upgrade from Duet 2 wifi to Duet 3 6hc config Issues:

G1 H1 Z{var.maxTravel} F600

Do you see the difference?

Alijambo73

@Phaedrux That was it. Thank you for your help.