Hi
the arrival of Duet 3 Mainboard is a great news,
have you already planned a date for its integration in the Config Tool ?
thanks

Hi Duet Forum.
I have spent 2 days on RRF3 and Duet 3. I was my first hours on it ... It's a pleasure, i like this board. I'm moving from another board + Marlin to this one.
Of course it was not so obvious, but with the Documentations (already great) and the forum postsss, I made good progress.
3 Axis+ Endstops / 2 extruders + Sensors + Fans / BED / Heated Chamber / ... everything works. few things are not working yet, i'll write other posts about them.

I share here my config.g, hopes it could help :

; Configuration file for Duet 3 (firmware version ?.0??)
; executed by the firmware on start-up
; oct 2019 : X/Y/Z E1/E2 BED/CHAMBER OK - BL (not ready) SERVO (not ready)
; DUET 3 6HC + 1 extension board 3HC (address 1.)
;
; General preferences
G90			; send absolute coordinates...
M83			; ...but relative extruder moves
M550 P"QualupQ3"	; set printer name Qualup Q3 http://www.spiderbot.eu/qu3-high-temperature/?lang=en

; Network
M552 P0.0.0.0 S1	; enable network and acquire dynamic address via DHCP
M553 P0.0.0.0		; netmask
M554 P0.0.0.0		; gateway
M586 P0 S1		; enable HTTP
M586 P1 S0		; disable FTP
M586 P2 S0		; disable Telnet

; Drives
;M569 P0 S1		; physical drive 0 goes forwards / driver 0 unable on this board
M569 P1 S1		; X physical drive 1 goes forwards
M569 P2 S1		; Y physical drive 2 goes backwards
M569 P3 S1		; Z0 physical drive 3 goes forwards
M569 P4 S1		; Z1 physical drive 4 goes forwards
M569 P1.0 S1		; E0 physical drive 1.0 on expansion board goes forwards
M569 P1.1 S1		; E1 physical drive 1.1 on expansion board goes forwards

M584 X1 Y2 Z3 E1.0:1.1				; set drive mapping 1 stepper on X, Y and 2 Steppers (Z3 instead of Z3:4 because Moteur Z1 not plug on Driver 4 at this time) on Z and Extruder
M350 X16 Y16 Z16 E16:16 I1			; configure microstepping with interpolation
M92 X80.00 Y80.00 Z400.00 E4074.37:4074.37      ; set steps per mm

M566 X900 Y900 Z120 E150:150			; set maximum instantaneous speed changes (mm/min)
M203 X6000 Y6000 Z1200 E1200:1200		; set maximum speeds (mm/min)
M201 X500 Y500 Z100 E250:250			; set accelerations (mm/s^2)
M906 X1000 Y1000 Z1200 E800:800 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 X300 Y250 Z300 S0			; set axis maxima

; Endstops
M574 X1 S1 P"io6.in"			; X min active high endstop switch / pin io3.in doesnt work use 6 instead
M574 Y1 S1 P"io4.in"			; Y min active high endstop switch
M574 Z1 S1 P"io5.in"			; Z min active high endstop switch

;Servo				;not working for the moment
;M950 S0 C"io7.out"		;not working for the moment
;M280 P0 S1500 I1		;not working for the moment

; Z-Probe					;not working for the moment
;M558 P9 C"zprobe.in" H5 F120 T3000           	; FW v3 BLTouch connected to Z probe IN pin
;M950 S0 C"exp.heater3"                       	; FW v3 create servo/gpio 0 on heater 3 pin on expansion connector
;G31 P500 X10 Y20 Z2.5                        	; set Z probe trigger value, offset and trigger height
;M557 X15:6 Y15:195 S20                      	; define mesh grid

; TEMPERATURE Sensors
M308 S0 P"temp0" Y"thermistor" T100000 B3950			; BED temperature sensor
M308 S1 P"1.temp1" Y"thermistor" T4606017 B5848 C0 R4700 H0 L0	; head 0 temperature sensor on expansion board ==> DYZE 500
M308 S2 P"1.temp2" Y"thermistor" T4606017 B5848 C0 R4700 H0 L0	; head 1 temperature sensor on expansion board ==> DYZE 500
M308 S3 P"temp1" Y"thermistor" T100000 B3950			; Chamber temperature sensor
M308 S4 P"temp2" Y"thermistor" T100000 B3950			; CAMERA IR temperature sensor

; Heaters
M950 H0 C"out0" T0 Q100				; BED heater 3 uses the out0 pin, sensor 0
M950 H1 C"1.out1" T1				; HEAD heater 1 uses the out1 pin on expansion board and sensor 1
;M950 H1 C"1.out1" T1 A584.4 C256.6 D6.4 S0.50	; HEAD heater 1 uses the out1 pin on expansion board and sensor 1 ==> DYZE PID Cartbridge
M950 H2 C"1.out2" T2                            ; HEAD heater 2 uses the out2 pin on expansion board and sensor 2
M950 H3 C"out1" T3                             	; CHAMBER heater 3 uses the out1 pin and sensor 3
M950 H4 C"out2" T4                             	; IR Camera heater 4 uses the out2 pin and sensor 4

; Maximum Temperatures 	Currently (September 2019), RRF3 does not support M143.
;M143 H0 S380 C0	; BED max Temp 300°C
;M143 H1 S500 C0	; Extruder 1 max Temp 500°C
;M143 H2 S500 C0	; Extruder 2 max Temp 500°C
;M143 H3 S380 C0	; Chamber max Temp 300°C

; Minimum Temperatures
;M302 P1 S240 R240	; minimun extruder 1 Temperature 240°C extrusion and retract
;M302 P2 S240 R240	; minimun extruder 2 Temperature 240°C extrusion and retract

; Fans
M950 F0 C"1.out7"      	; Extruder 1 fan 0 !F1 don t work ... ???  on pin out 7 pwm on expansion board 
M950 F2 C"1.out8"      	; Extruder 1 fan 2 on pin out 8 pwm on expansion board
M950 F3 C"out7"      	; Chamber fan 3 on pin out 7 pwm
M950 F4 C"out8"        	; IR Camera fan 4 on pin out 8 pwm

; Tools
M563 P1 D0 H1 F0 S"Extruder 1"	; define tool 1 - F1 don t work... ???
G10 P1 X0 Y0 Z0			; set tool 1 axis offsets
G10 P1 R0 S0			; set initial tool 1 active and standby temperatures to 0C

M563 P2 D1 H2 F2 S"Extruder 2"	; define tool 2
G10 P2 X0 Y0 Z0			; set tool 2 axis offsets
G10 P2 R0 S0			; set initial tool 2 active and standby temperatures to 0C

M563 P3 H3 F3 S"Chamber"	; define tool chamber
G10 P3 R0 S0			; set initial tool 3 active and standby temperatures to 0C

M563 P4 H4 F4 S"Camera IR"      ; define tool IR Camera
G10 P4 R0 S0			; set initial tool 4 active and standby temperatures to 0C

; Custom settings are not defined

It is a ZProbe we made ourself.
An electromagnet takes out a rod, on this rod is fixed a blade which hides or not a standard optical endstop.

It works fine, thank you...

The last thing is the Z Probe connected to the expansion board.
Do you have an idea when it will be supported ?

M308 S1 A"TC0" P"1.spi.cs0" Y"thermocouple-max31856" K"k"
Give no error but read 2000°C.

M308 S1
Sensor 1 type Thermocouple (MAX31856) using pin 1.spi.cs0, last error: sensor short to other wiring, thermocouple type K, reject 50Hz

Yes, it is a prototype... bought in October.
Can I made the modification myself ?

I'm sorry, I misspoke. Actually, I want to use 2 heaters and 2 thermocouples with the EXP3HC card.
Do you think it should work?

Do you have any idea when this is going to be implemented?
(just to know if I'll have to change the TCs by Thermistors to do my tests at the beginning of the year)

How... Sorry...
I thought that the limitation of the thermocouple that must be on the same card as the heater was fixed in version 3.0RC1

It seems not.
It works with Thermistor but not with TC.

If I setup the TC on 6HC and the heater on 6HC too, it works, DWC show the temperature.

Yes, I read 2000°C in DWC:

Tried that :
M308 S1 P"spi.cs0" A"TC0" Y"thermocouple-max31856" K"k"
It works!

I installed the thermocouple card on the EXP3HC (with the thermocouples wired) and ran a :
M308 S1 P"1.spi.cs0" A"TC0" Y"thermocouple-max31856" K"k"

I get that :

M308 S1 :
Sensor 1 type Thermocouple (MAX31856) using pin 1.spi.cs0, last error: sensor short to other wiring, thermocouple type K, reject 50Hz

Strange, it is the same TC board and same wiring...

18/12/2019 à 21:40:15 M308 S1 P"0.spi.cs0" Y" thermocouple-max31856" K"k"
No error reported

18/12/2019 à 21:41:01 M308 S1
Sensor 1 type Thermocouple (MAX31856) using pin (spi.cs0,serial3.rx), reading 37.5, last error: success, thermocouple type K, reject 50Hz

I try to connect thermocouples type K on a Duet3 6HC, value read is always 2000°C.
I have one Thermocouple daughter board (V1.1) on the Duet3 6HC
The config.g is like that :
M308 S1 P"spi.cs0" Y"thermocouple-max31856" K"K"

Note : same problem with the 3HC
M308 S1 P"1.spi.cs0" Y"thermocouple-max31856" K"K"
read 2000°C too.

I tried 2 different Thermocouple daughter board and 3 thermocouples.

Any idea ?

PS : RRF3 3.0 rc1 on both 6HC and 3HC

How much current can we draw on the 5V pin of a IO_x of a DUET 3 EXP3HC ?
Can I use this pin to power a RC servo that may draw 0.65A ?