Babystepping - not stepping

TimsWorkshop

Hi All... I'm working through getting my printer all setup and have started to run through my tweaks.

I'm now trying to level my bed.
I've got a EZABL Pro, it's setup, it's working, and I've configured it as per the TH3D site.
I then ran the prob mesh to set my bed mesh values

Once I tried to run a test print the nozzle is on the bed and when I try to babystep it down, the nozzle doesn't move. I can see the z-offset value changin in DWC, I went all the way to 15mm but the nozzle did not move.

I remember reading a thread where some gcode would prevent babystepping, but I can't find that and forget which command it was.

Printer Details

Ender 5 Plus
Board: Duet 2 WiFi (2WiFi)
Firmware: RepRapFirmware for Duet 2 WiFi/Ethernet 3.2.2 (2021-02-11)
Duet WiFi Server Version: 1.25
Duet Web Control 3.3.0

Start of my test file gcode

;FLAVOR:RepRap
;TIME:620
;Filament used: 0.423931m
;Layer height: 0.2
;MINX:12.887
;MINY:12.887
;MINZ:0.2
;MAXX:337.113
;MAXY:337.113
;MAXZ:0.2
;Generated with Cura_SteamEngine 4.9.1
T0
M190 S60
M104 S200
M109 S200
M82 ;absolute extrusion mode

G28 ;Home
M420 S1 Z2 ;Enable ABL using saved Mesh and Fade Height

G92 E0 ;Reset Extruder
G1 Z2.0 F3000 ;Move Z Axis up
G1 X10.1 Y20 Z0.28 F5000.0 ;Move to start position
G1 X10.1 Y200.0 Z0.28 F1500.0 E15 ;Draw the first line
G1 X10.4 Y200.0 Z0.28 F5000.0 ;Move to side a little
G1 X10.4 Y20 Z0.28 F1500.0 E30 ;Draw the second line
G92 E0 ;Reset Extruder
G1 Z2.0 F3000 ;Move Z Axis up

M83 ;relative extrusion mode
G1 F1500 E-6
;LAYER_COUNT:1
;LAYER:0
M107
M204 T500
M566 X480 Y480
G0 F7500 X153.376 Y153.021 Z0.2
M204 P500

Config.g file

; Configuration file for Duet WiFi (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.3.0 on Sun Aug 08 2021 21:27:12 GMT+1000 (Australian Eastern Standard Time)

; General preferences
G90                                                ; send absolute coordinates...
M83                                                ; ...but relative extruder moves
M550 P"Oneill"                                     ; set printer name

; Network
M552 S1                                            ; enable network
M586 P0 S1                                         ; enable HTTP
M586 P1 S0                                         ; disable FTP
M586 P2 S0                                         ; disable Telnet

; Drives
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
M584 X0 Y1 Z2 E3                                   ; set drive mapping
M350 X16 Y16 Z16 E16 I1                            ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z400.00 E420.00                  ; set steps per mm
M566 X900.00 Y900.00 Z300.00 E2000.00                ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z600.00 E6000.00            ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z200.00 E3000.00                ; 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

; Axis Limits
M208 X0 Y0 Z0 S1                                   ; set axis minima
M208 X350 Y350 Z400 S0                             ; set axis maxima

; Endstops
M574 X1 S1 P"xstop"                                ; configure active-high endstop for low end on X via pin xstop
M574 Y1 S1 P"ystop"                                ; configure active-high endstop for low end on Y via pin ystop
M574 Z1 S2                                         ; configure Z-probe endstop for low end on Z

; Z-Probe
;M558 P1 C"zprobe.in" H5 F120 T6000                 ; set Z probe type to unmodulated and the dive height + speeds
M558 P5 C"!zprobe.in" H3 F900 T12000 
G31 P500 X0 Y0 Z4.34                                ; set Z probe trigger value, offset and trigger height
M557 X15:320 Y15:335 S20                           ; define mesh grid

; Heaters
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 B0 S1.00                                   ; disable bang-bang mode for the bed heater and set PWM limit
M140 H0                                            ; map heated bed to heater 0
M143 H0 S120                                       ; set temperature limit for heater 0 to 120C
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 B0 S1.00                                   ; disable bang-bang mode for heater  and set PWM limit
M143 H1 S280                                       ; set temperature limit for heater 1 to 280C

; 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 F1 C"fan1" Q500                               ; create fan 1 on pin fan1 and set its frequency
M106 P1 S1 H1 T45                                  ; set fan 1 value. Thermostatic control is turned on

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

; Custom settings are not defined
; Filament Runout Sensor
M591 D0 P1 C"e0stop" S1

; TFT Display Config
M575 P1 S1 B57600

; Miscellaneous
M501                                               ; load saved parameters from non-volatile memory
M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss

Would love some insight and help! For some reason I'm drawn to the M420 command, but can't be sure.

jay_s_uk

@infidelprops said in Babystepping - not stepping:

M208 X0 Y0 Z0 S1 ; set axis minima

your printer won't go below your M208 minima, in this case that is 0mm
M208 X0 Y0 Z0 S1 ; set axis minima
you need to make M208 for Z a negative value to go any further

TimsWorkshop

@jay_s_uk Thanks @jay_s_uk , I will give that a go now!

TimsWorkshop

@jay_s_uk , that worked, thanks!