I came here with 0 knowledge about control systems and you guys made my journey of converting my Creality K1 printer possible. I don't think that I would be able to do it on my own without your help. So as a thank you I just want to share my config files that could maybe be helpful for someone who might find himself in a similar situation like I was few months ago.

I run the factory setup of the printer, only thing I have removed were the load cells on the printer used for homing the machine and I run an IR Z-probe instead.

Config and homing files:
homeall.g config.g homez.g homey.g homex.g

Some prints I am getting with the duet controler.

You can also check how it is pritning here:
https://www.youtube.com/shorts/4Fwqjc0oUp0

@droftarts Thanks for the guidance. Thats unfortunate that no one has done it yet, but once I manage to convert my machine I will share it with you so other people can use the configuration without the hustle.

Hi I am configuring a pellet extruder which I wired up according to my previous question here.

Configured it to my best knowledge and tried to run the extruder, by heating above 180°C. Running T0 and then G1 E100 F1000.
When I do this the top speed matches the requested speed in the duet web interface, but the screw does not actually start spinning. The Drive 0 value that shows the axes position is not changing when the status is 'Busy' and the value only changes when the move is 'finished'.

The lights for V+ and ENA on the stepper driver are on when the power is on and the lights for STEP and STall are not (stall is not connected atm). After the first time I run the G1 E100 F1000 the ENA turns off and stays off even after the move is 'finished', while the V+ is on all the time.

Communication between the 6HC mainboard and 1XD extension board should be fine since when I run M115 B122 the console givem me its firmware version - Duet EXP1XD firmware version 3.4.4 (2022-10-14 11:45:39)

I don`t know where to start looking for the rootcause of the error. Can you please help me?
Here is my config.g file.

; Configuration file for RepRapFirmware on Duet 3 Main Board 6HC
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.5.0 on Mon May 27 2024 12:24:16 GMT+0200 (Central European Summer Time)

; General
G90                                                                              ; absolute coordinates
M83                                                                              ; relative extruder moves
M550 P"Duet 3"                                                                   ; set hostname


; Network
M552 P192.168.2.1 S1                                                             ; configure Ethernet adapter
M553 P255.255.255.0
M586 P0 S1                                                                       ; configure HTTP

;PT 100 Daughter boards
M308 S1 P"spi.cs0" Y"rtd-max31865" A"Nozzle P"   		   ; configure sensor 1 as PT100 connected to RTD1 on lower daughter board 
M308 S2 P"spi.cs1" Y"rtd-max31865" A"Heater bot"           ; configure sensor 1 as PT100 connected to RTD1 on lower daughter board 
M308 S3 P"spi.cs2" Y"rtd-max31865" A"Heater top"           ; configure sensor 1 as PT100 connected to RTD1 on lower daughter board 

;Heaters
M950 H1 C"out1" T1                                         ; Create heater #1
M143 H1 P0 T1 C0 S480 A2                                   ; configure heater monitor #0 for heater #1
;M307 H1 R50 D22 E1.35 K0.56 B0 V24.0
M307 H1 R0.856 K0.198:0.000 D26.22 E1.35 S1.00 B0 V48.1                       ; default values from pulsar docs

M950 H2 C"out2" T2                                         ; Create heater #2
M143 H2 P0 T2 C0 S480 A2                                   ; configure heater monitor #0 for heater #2
;M307 H1 R50 D22 E1.35 K0.56 B0 V24.0
M307 H2 R0.693 K0.148:0.000 D31.85 E1.35 S1.00 B0 V48.1                              ;default values from pulsar

M950 H3 C"out3" T3                                         ; Create heater #3 (top heater)
M143 H3 P0 T3 C0 S480 A2                                   ; configure heater monitor #0 for heater #3
;M307 H1 R50 D22 E1.35 K0.56 B0 V24.0
M307 H3 R1.122 K0.127:0.000 D24.70 E1.35 S1.00 B0 V48.1



;M569 P0.0 S0 D2                                                                  ; driver 0.0 goes forwards (X axis)
;M569 P0.1 S0 D2                                                                  ; driver 0.1 goes forwards (Y axis)
;M569 P0.2 S0 D2 
M569 P122.0 S0 R1 T3:3:5:0

; Drive Mapping X,Y,Z to be changed
M584 X0.0 Y0.1 Z0.2 E122.0                        ;map
M350 X32 Y32 Z16 E16 I1                           ;Microstepping with interpolation enabled
M906 X800 Y800 Z800 E3810
;Extruder configuration    For all axeses (pulsar docs) M92 XXXX.X YXXX.X ZXXX.X E224.6
M92 E224.6                                                 ; configure steps per mm, XYZ to be filled
M203 E9000                                                 ; set maximum speeds (mm/min) XYZ to be filled


M563 P0 D0 H1:2:3 F1 S"Pulsar"
M568 P0 R0 S0                                                                    ; set initial tool #0 active and standby temperatures to 0C

@dc42 I use this driver because it was provided by the extruder manufacturer and the 6 drivers on the 6HC is already reserved for X,Y,Z.

@dc42 Thank you. That would mean to leave the P-UP, and STALL on the driver also not connected. Is that correct?

Here is the driver documentation.https://docs.dyzedesign.com/stepper-driver.html#duet-configuration

I have never used an external stepper driver, so it is my premier with the duet 1XD board and I try to follow documentation in the Duet Docs and the documentation for the extruder that the stepper is for, but I am little bit confused.

Mainly due to different pin markings on the board, driver and even in the documentation of the driver and stepper itself. The markings of the stepper in the duet docs is also different when compared to the driver I have. I believe that my confusion is caused by fact that I don´t know much of electronics, but I hope you can guide me how to plug it correctly.

The duet3d extension board has 8 pins +5V, D0_STEP-; D0_STEP+,D0_DIR-,D0_DIR+, D0_EN-, D0_EN-, +5V, and the driver in the docs has PUL+, PUL-, DIR+, DIR-, ENA+,ENA-

but the physical driver I have has pins: P-UP,STALL; GND;ENA;STEP;DIR

and when I compare it to the dyze design docs, the supposed pins of the board and even the drivers pins are again entirely different.

Can you please tell me what pins on the 1XD board do I connect to which pins on the driver?

I have some additional questions:

1. What is the difference between single ended connection and differential connection shown in the duet docs for the 1xd board?

2. The steppers required current is 2.7A RMS, but the max output from the 1XD is 2A. Can I plug the PWR connectors of the driver to the same 48V PSU as the 1XD extension board and the 6HC mainboard I use?

We are working on a project to build a large-scale 3D printer with a 1m³ build volume. We want to wire it and commission it ourselves to allow for future modifications, however the complexity of the project has raised concerns about our ability to execute it successfully. So I need your help to answer some questions

For context, my only prior experience includes converting a desktop 3D printer to use a Duet board. And I don't know much about electronics

1. Stepper Drivers and Mainboard Choice:

• Our original plan was to use the Duet 3 6HC mainboard powered by a 48V PSU. We selected six stepper motors (one each for X, Y, and Z axes, plus three more for other functions), each rated for 48V and 3.18A.
• Since the total current output from the board would be approximately 30A, would the 6HC be suitable for this setup, or would we need to consider the Duet 3 6XD instead?
  Heater Control with SSRs:

2. Can the 3.3V IO outputs on the 6HC board control solid-state relays (SSRs) for 230V heaters, or would we need to step up the control voltage to a higher level to ensure reliable operation?

I am still new to electronics so I dont know what could be the issue so I will leave as much information as possible.

I am trying to run heater autotuning with M303 H1 P1 S240. It runs for 60 seconds and then gives error: Auto tune cancelled because temperature is not increasing. During the minute it increases from 28.3 to 28.8°C. I supply the board with 24 V and the current in standby mode is 0.13 A and when the heating starts it is 0.26 A.

I dont know if the values in M307 are correct. The manufacturer of the pellet extruder I am trying to use suggests initial tuning values M307 H1 A940 C810 D22 S1.0 B0, but those are for old firmware version.

Here is my config.g

As stated above. I don't see any controls of the heaters in the web interface. I can't see in tools or extras.

My config file:

My connections:

What I "see" in the web control

A few months ago, I successfully converted my Creality K1 printer to use a Duet board, and now I’m working on a more complex printer project with pellet extruder (https://docs.dyzedesign.com/pulsar.html#what-s-in-the-box). Since I’m not very proficient in electronics, I decided to start by connecting and configuring the PT100 sensors for the pellet extruder. I have followed the configuration guide of the pellet extruder but I’ve encountered several unexpected issues that I need help with.

First issue is inside the web control.
1)I dont see configured sensors where I could read their temperature in tools. I have to switch to extras.
2) I cant see all of them in extras either - nozzle is missing.
3) Additionaly PT100 for heater top is showing 2000°C

I came here with 0 knowledge about control systems and you guys made my journey of converting my Creality K1 printer possible. I don't think that I would be able to do it on my own without your help. So as a thank you I just want to share my config files that could maybe be helpful for someone who might find himself in a similar situation like I was few months ago.

I run the factory setup of the printer, only thing I have removed were the load cells on the printer used for homing the machine and I run an IR Z-probe instead.

Config and homing files:
homeall.g config.g homez.g homey.g homex.g

Some prints I am getting with the duet controler.

You can also check how it is pritning here:
https://www.youtube.com/shorts/4Fwqjc0oUp0

I have noticed new way of scanning the bed scanner measuring the eddy current to achieve faster and more precise auto bed leveling. I have found 2 companies making such sensors - Beacon and BigTreeTech. They both state that these scanners are meant for Klipper but I would be interested to use it on Duet. Would that work?