G32 In 3.4 Beta 3

[Th0mpy]

I just updated to the beta version last night to solve another issue with probing. One thing I notice now is that when I run a G32 to level the bed it does not correct the level until you move after issuing the G32.

Series of events:
G28 ;home
G32 ;level gantry, in version 3.3 the gantry would adjust its level at this point
G1 X10 Y10 Z30 ;in beta 2 it does not level until this point when you issue another movement command

my bed.g looks like this:

M561 ; clear any bed transform
 
 
G30 P0 X35 Y25 Z-99999
G30 P1 X35 Y280 Z-99999
G30 P2 X315 Y280 Z-99999
G30 P3 X315 Y25 S4 Z-99999

config.g

; Configuration file for Duet 3 (firmware version 3.3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.3.1 on Sun Aug 29 2021 21:00:02 GMT-0500 (Central Daylight Time)
 
; General preferences
G90                                                             ; send absolute coordinates...
M83                                                             ; ...but relative extruder moves
M550 P"Voron"                                                  ; set printer name
M669 K1                                                         ; select CoreXY mode
;M669 K0
 
 
; Drives
M569 P1.1 S0                                                    ; A
M569 P1.2 S0                                                    ; B
M569 P1.0 S1                                                    ; Extruder
 
M569 P0.0 S1                                                    ; Z0
M569 P0.1 S1                                                    ; Z1
M569 P0.2 S0                                                    ; Z2
M569 P0.3 S0                                                    ; Z3
 
M584 X1.2 Y1.1 Z0.0:0.1:0.2:0.3 E1.0                            ; set drive mapping
M671 X-65:-65:410:410 Y0:400:400:0 S5   						; bed leveling coordinates
M350 X16 Y16 Z16 E16 I1                                         ; configure microstepping with interpolation
M92 X160.00 Y160.00 Z800.00 E415.00                             ; set steps per mm
M566 X900.00 Y900.00 Z120.00 E60.00                             ; set maximum instantaneous speed changes (mm/min)
M203 X60000.00 Y60000.00 Z2000.00 E180.00                       ; set maximum speeds (mm/min)
M201 X2800.00 Y2800.00 Z250.00 E20.00                           ; set accelerations (mm/s^2)
M906 X1800 Y1800 Z1800 E800 I30                                 ; set motor currents (mA) and motor idle factor in per cent
M84 S30                                                         ; Set idle timeout
 
; Axis Limits
M208 X10 Y0 Z0 S1                                                ; set axis minima
M208 X350 Y350 Z355 S0                                          ; set axis maxima
 
; Endstops
M574 X2 S1 P"!io8.in"                                            ; configure active-high endstop for high end on X via pin io8.in
M574 Y2 S1 P"!io6.in"                                            ; configure active-high endstop for high end on Y via pin io6.in
M574 Z1 S2                                                      ; configure Z-probe endstop for low end on Z
 
; Z-Probe
M558 P8 C"io3.in" H30 F1000 T20000                              ; set Z probe type to unmodulated and the dive height + speeds
G31 P500 X0 Y25 Z0                                              ; set Z probe trigger value, offset and trigger height
M557 X35:315 Y25:280 P4                                         ; define mesh grid
 
; Heaters
M308 S0 P"1.temp0" Y"thermistor" T100000 B4725 C7.06e-8         ; configure sensor 0 as thermistor on pin temp2
M950 H0 C"1.out0" T0                                            ; create bed heater output on 1.out0 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"temp0" Y"thermistor" T100000 B4725 C7.06e-8           ; configure sensor 1 as thermistor on pin temp0
M950 H1 C"out1" T1                                              ; create nozzle heater output on out1 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
;M308 S2 P"temp1" Y"thermistor" T100000 B4725 C7.06e-8          ; configure sensor 2 as thermistor on pin temp1
M308 S2 P"temp1" Y"thermistor" T10000 B3940 A"Chamber Temp" 
;M950 H2 C"!1.out2" T2                                          ; create chamber heater output on !1.out2 and map it to sensor 2
;M307 H2 B0 S1.00                                               ; disable bang-bang mode for the chamber heater and set PWM limit
;M141 H2                                                        ; map chamber to heater 2
;M143 H2 S280                                                   ; set temperature limit for heater 2 to 280C
 
; Fans
M950 F0 C"out7" Q500                                            ; create fan 0 on pin out7 and set its frequency
M106 P0 S0 H-1                                                  ; set fan 0 value. Thermostatic control is turned off
M950 F1 C"out8" Q500                                            ; create fan 1 on pin out8 and set its frequency
M106 P1 S0.5 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
 
; Miscellaneous
M501                                                            ; load saved parameters from non-volatile memory
T0                                                              ; select first tool
 

[Phaedrux]

Thanks for the report.

Could you add a tiny move at the end of bed.g to have it take effect then as a work around?

I don't have a multi motor z axis to duplicate this on, so I'm interested to see if anyone else has noticed this.

[dc42]

Can anyone else with a machine having multiple Z leadscrews confirm this?

[jbarros]

@dc42

I confirm the issue on my 3 Z motor setup

[Th0mpy]

@phaedrux For now that's what I'm doing.

[DaveA]

@dc42 I have an old Folgertech 13-2020 which has a Maestro and 3.4B3. It also has a Z motor on drive 2 and drive 4.
It also has a precision piezo mounted on the E3d head. My homing has switches on X and Y. I probe in the bed
center with a G30 to home Z.

I just tried the following
G28
M84 to release the motors
Manually rotated the right Z lead screw several turns to make the X axis severely tilted
G28 Homed OK
G32 The head moved to the left side of the bed and probed. Moved to the right side of the bed and probed.
It then immediately moved the right Z motor and "leveled" the x axis.
I did not need to make any additional moves to cause it to level.

Hopefully this may help.

[dc42]

Thanks for reporting this, it should be fixed in the next build.