I already have that T0 Command in my Config, so i could have both print cooling fans as "Tool Fans" right after Startup.

Gonna check that M558 the next time i screw smth up.

Oh, and keep up the good Work, great piece of Hardware you made there!

My Firmware is the Newest from Github: 2.02(RTOS) (2018-12-24b1)

I Can't remember if i had that problem prior to the FW Update, i'am pretty new in the Duet world.

There you go:

Config.g:
; Drives
M569 P0 S1 ; Drive 0 goes forwards
M569 P1 S0 ; Drive 1 goes backwards
M569 P2 S0 ; Drive 2 goes backwards
M569 P3 S0 ; Drive 3 goes backwards
M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
M92 X80.00 Y80.00 Z400.00 E95.00 ; Set steps per mm
M566 X900.00 Y900.00 Z12.00 E120.00 ; Set maximum instantaneous speed changes (mm/min)
M203 X24000.00 Y24000.00 Z240.00 E1500.00 ; Set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00 E250.00 ; Set accelerations (mm/s^2)
M906 X800.00 Y800.00 Z800.00 E800.00 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S10 ; Set idle timeout

; Axis Limits
M208 X-10 Y-30 Z0 S1 ; Set axis minima
M208 X300 Y300 Z400 S0 ; Set axis maxima

; Endstops
M574 X1 Y1 S0 ; Set active low and disabled endstops

; Z-Probe
M574 Z1 S2 ; Set endstops controlled by probe
M558 P1 H5 F120 T6000 ; Set Z probe type to unmodulated and the dive height + speeds
G31 P536 X0 Y-25 Z3.195 ; Set Z probe trigger value, offset and trigger height
M557 X30:260 Y5:270 S30 ; Define mesh grid

; Heaters Hotend

M305 P1 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 1
M143 H1 S280 ; Set temperature limit for heater 1 to 280C

;Heaters Bed (Disabled)
M140 H-1

; Fans
M106 P0 S0 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P1 S0 I0 F500 H-1 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P2 S1 I0 F500 H1 T40 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on

; Tools
M563 P0 S"V6 Gold" D0 H1 F0:1 ; 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

; Automatic power saving
M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; Set voltage thresholds and actions to run on power loss

; Custom settings are not configured

; Miscellaneous
T0 ; Select first tool

Homeall.g:

; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v2 on Sat Jan 12 2019 17:27:47 GMT+0100 (Mitteleuropäische Normalzeit)
G91 ; relative positioning
G1 Z5 F6000 S2 ; lift Z relative to current position
G1 S1 X-315 Y-335 F2400 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 X5 Y5 F6000 ; go back a few mm
G1 S1 X-315 Y-335 F360 ; move slowly to X and Y axis endstops once more (second pass)
G90 ; absolute positioning
G1 X30 Y30 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 S2 Z5 F100 ; lift Z relative to current position
;G90 ; absolute positioning

Homez.g:

; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v2 on Sat Jan 12 2019 17:27:47 GMT+0100 (Mitteleuropäische Normalzeit)
G91 ; relative positioning
G1 Z5 F6000 S2 ; lift Z relative to current position
G90 ; absolute positioning
G1 X30 Y30 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 S2 Z5 F100 ; lift Z relative to current position
;G90 ; absolute positioning

Pause.g:

; called when a print from SD card is paused
;
; generated by RepRapFirmware Configuration Tool v2 on Sat Jan 12 2019 17:27:47 GMT+0100 (Mitteleuropäische Normalzeit)
M83 ; relative extruder moves
G1 E-10 F3600 ; retract 10mm of filament
G91 ; relative positioning
G1 Z5 F360 ; lift Z by 5mm
G90 ; absolute positioning
G1 X0 Y0 F6000 ; go to X=0 Y=0

Cancel & Stop.g are empty...

Hello there!

I got my DC42 configured and running great, the Documentation is really great.

However, i can't get that thing working properly after i cancelled a print.

After Startup the Autohome works just fine, i soon start a print and maybe smth. goes wrong, so, cancelling the print is a great option, and starting over again as soon as possible. But the the Z-Homing fails, the LED switches on, the Z-Motors stop for a moment, and start to lower very slowly again, until the Hotend crashes into the bed.

After pressing the E-Stop and rebooting the Board even the first Autohome wont work, with the same problem as mentioned above. Only hard-resetting the Duet will fix this Issue, until the next time smth. goes wrong.

Firmware ist 2.02, Wifi 1.22 and Interface 1.22.6

Here is my Z-Probe Config:
; Z-Probe
M574 Z1 S2
M558 P1 H5 F120 T6000
G31 P536 X0 Y-25 Z3.07
M557 X30:260 Y5:270 S30

i hope i didn't miss anything in the config, as a noob in reprap fw.

Thanks in advance!