Congratulations on your new Duet 3 Mainboard 6HC! This page will guide you through getting connected, updating firmware, setting up initial configuration.
The Duet 3 Mainboard 6HC is designed to either be directly connected to a network, or to connect to a Single Board Computer (SBC) like a Raspberry Pi. All standard printer functions, different kinematics, the network UI (Duet Web Control) etc work in both modes.
SBC mode allows part of the functionality to be handled by the SBC. This offers a number of benefits:
Here is a photo showing a bench setup comprising a version 0.5 Duet 3 main board, Raspberry Pi 3B+, and one early prototype Duet 3 expansion board. Caution! Note the orientation of the 40-pin ribbon cable. The connector on the Raspberry Pi is not keyed, so be very careful to connect the ribbon cable the right way round and in the correct position. Caution! Note the order of the VIN + and - terminals on the Duet 3 main board (the red wire is +ve), which is not the same as on Duet 2!
The position of the ribbon cable may appear awkward. However, our intention is that the Raspberry Pi be mounted below or above the Duet, so that the USB and Ethernet connectors on the Raspberry Pi line up with the right hand edge of the Duet. It's also possible to position the Pi on the opposite side of the Duet and run the ribbon cable underneath the Duet, but this requires a 200mm long cable.
On the version 1.0 and 0.6 board, jumpers are provided to allow you to select whether the Duet powers the Pi, the Pi powers the Duet, or neither. See here for more details and limitations.
Once physically connected, see the SBC Setup for Duet 3 to connect over your network.
Duet 3 main boards1 have the ability to run without a connected Single Board Computer (SBC), in standalone mode, by inserting a micro SDHC card in the socket on the Duet and using the local Ethernet port to connect to your router.
An SD card is usually supplied with the Duet 3 mainboard. On boards shipped before May 2020, this was formatted for use in a connected Raspberry Pi, and does not have the files on it to run the Duet 3 in standalone mode. Duet 3 boards shipped after this date should have a dual-format image, with a FAT32 partition and the files to start the Duet 3 in standalone mode, and a partition with the files to boot a connected Raspberry Pi.
To run the Duet 3 in standalone mode, the SD card must be formatted correctly and be populated with configuration files, homing files and web server files; see SD Card for details on configuring the SD Card. The board will run in standalone mode if the SD card is present and contains a sys/config.g file; otherwise it will wait to be contacted by the Raspberry Pi or other single board computer.
1 except for some very early prototypes (before version 0.6)
You will need to initially setup the Duet 3 using a USB cable (USB A to Micro B). Make sure the USB cable is capable of carrying power AND data; some USB cables are power-only. Then follow the guide here: Getting connected to your Duet.
After following this guide, you should be able to connect to your Duet 3 over your network, and connect to the Duet Web Console (DWC).
The Duet Web Control user interface is the best way to control your Duet. A comprehensive manual is here: Duet Web Control Manual
So far, the Duet is not configured for your machine. Use the RepRapFirmware Configuration Tool to produce a set of files as a zip file to upload to the Duet. Upload the zip file (no need to extract the files) to the Duet using Duet Web Control, by going to System > Upload System Files. For more information, see Duet Web Control Manual
See the Connecting hardware section of the User manual for choosing, connecting and testing each component.
See here for the Duet 3 Mainboard 6HC Wiring Diagram
A PanelDue can be connected to connector IO_0 using a 4-core cable wired like this.
M575 P1 B57600 S1 in your config.g to enable the PanelDue.
See Connecting a PanelDue for more information.
Additional expansion boards add further functionality to your Duet 3 mainboard. These are connected by CAN bus. For an overview of connecting these, see CAN connection basics.
If you connect one or more expansion boards via CAN (as shown in the earlier photo), you must install the two CAN termination jumpers on the last board in the chain, but not on any additional boards in the middle of the chain.
For a list of expansion boards that can be connect to a Duet 3 mainboard, see the 'CAN expansion' section of the Duet 3 family page.
Please use the forum to report any issues: https://forum.duet3d.com/