Duet 3 Mainboard 6XD
Description
An advanced, high-power controller designed for machines that require external stepper or servo drivers. The Duet 3 Mainboard 6XD provides support for six external stepper/servo motor drivers, as well as a wide range of outputs and I/O similar to the Duet 3 Mainboard 6HC. Several of the I/O ports are opto-isolated, making integration with PLCs and other industrial automation systems straightforward and reliable.
The Duet 3 family is engineered to offer maximum flexibility for machine design, providing powerful mainboards, expansion boards, tool boards, and custom modules. This advanced hardware is powered by our innovative RepRapFirmware 3, running directly on the Duet 3 Mainboard, with optional DuetSoftwareFramework support when connected to a Single Board Computer.
This makes the Duet 3 6XD an ideal solution for industrial-grade motion control, high-performance CNC machines, robotics projects, custom manufacturing systems, and large-format 3D printers.
| Feature | Description |
|---|---|
| Processor | 32-bit Atmel ATSAME70 (ARM Cortex-M7) running up to 300 MHz |
| Expansion | CAN-FD bus for multiple expansion boards and tools |
| Connectivity | Dedicated SPI bus to SBC, Ethernet connection; USB-C for initial setup |
| External Driver Support | 6 ports with step/dir/enable outputs and fault inputs; 5 V single-ended |
| High Current Outputs | 3 high-current outputs up to 6 A each |
| Medium Current Outputs | 6 medium-current outputs; 3 support 4-wire fans (PWM + tach); two fused voltage-selectable banks (VIN/12 V) |
| Temperature Measurement | 4 thermistor/PT1000 inputs; supports two daughterboards for PT100 or thermocouples (up to 4 sensors) |
| I/O Ports | 9 I/O ports with 3.3 V output level, 30 V-tolerant inputs; 4 with optional opto-isolation |
| Power Monitoring | VIN voltage monitoring enables state save on power loss |





