Duet 3 Expansion Board 3HC

Size

In stock, ready to ship.

The Duet 3 Expansion board is a CAN-FD connected, high current, full featured expansion board for the Duet 3 Mainboard. The Duet 3 family provides control for a wide range of machines including 3D printers, CNCs, lasercutters and more, building on Duet3D's experience in developing the most flexible and expandable 3d printer control solutions. The overall aim with the Duet 3 series is to allow for maximum flexibility of machine design through highly capable main boards, expansion boards, smart tool boards and custom expansion modules. 

See the documentation links below for a full feature set.



Next Previous


Features:
  • Dedicated 32 Bit Processor (ARM Cortex M4F @120 Mhz)
  • CAN-FD bus connection to the Duet 3 Mainboard. This allows for many expansion boards to be connected. The initial target is support for up to 8 x 3 channel expansion boards (another 24 stepper channels).
  • 3 next generation Trinamic 5160 stepper drivers running at up to 4.45A RMS, 6.3A peak with firmware control of the full feature set including up to 256 microstepping, StallGuard 2 and StealthChop 2
  • 9 PWM outputs of varying current capacities support to support, for example, 3 extruders and 6 fans.
  • 6 IO ports for endstops, probes, filament monitors and other sensors.
  • 3 Thermistor/PT1000 inputs and support for 4 PT100/thermocouple inputs via the optional daughterboards.
  • Support for a wide range of Z probes including DC42’s IR Z probe and the Duet3D Smart Effector for delta printers.

Documentation:
The documentation for Duet 3 is under development: initial information is here:

This is the pre-order for the first production run of the Duet 3 Expansion 3HC. Delivery for this pre order wis expected to start in January 2020.

The Duet family of motion control electronics

Current production Duets

Note: the Duet 3 Mini 5+ is not yet in production, but is included for comparison

Feature Duet 2 WiFi Duet 2 Ethernet Duet 2 Maestro Duet 3 6HC Duet 3 Mini 5+ WiFi (provisional) Duet 3 Mini 5+ Ethernet (provisional)
Processor ATSAM4E8E ATSAM4S8C ATSAME70Q20B ATSAMD51P20A ATSAME54P20A
Processor features 120MHz ARM Cortex M4F, 512Kb flash, 128Kb RAM, hardware floating point (single precision), DMA, 2Kb cache 120MHz ARM Cortex M4, 512Kb flash, 128Kb RAM, DMA 300MHz ARM Cortex M7, 1Mb flash, 384Kb RAM, hardware floating point (double precision), DMA, 32Kb cache 120MHz ARM Cortex M4F, 1Mb flash, 256Kb RAM, hardware floating point (single precision), DMA, 4Kb cache
Networking 2.4GHz WiFi 10BaseT/100BaseTX Ethernet 10BaseT/100BaseTX Ethernet 10BaseT/100BaseTX Ethernet, or via attached SBC 2.4GHz WiFi 10BaseT/100BaseTX Ethernet
Support for attached Raspberry Pi or other Single Board Computer (SBC) No No Yes Yes
Stepper drivers on-board 5 x TMC2660 5 x TMC2224 6 x TMC2160 or TMC5160 5 x TMC2209
Stepper driver features Up to 2.4A peak current, microstep interpolation from x16 to x256, stall detection Up to 1.4A peak current, microstep interpolation from any setting to x256, stealthChop2 Up to 6.3A peak current, microstep interpolation from any setting to x256, stall detection, stealthChop2 Up to 2.0A peak current (TBC), microstep interpolation from any setting to x256, stall detection, stealthChop2
Stepper driver expansion Up to 7 additional stepper drivers, of which up to 5 can be TMC2660 Up to 2 additional TMC2208 or TMC2224 stepper drivers Almost unlimited expansion using CAN-connected expansion boards 3 additional TMC2209 stepper drivers
External stepper driver support Up to 7 external stepper drivers when not using DueX expansion board. Signal levels are 3.3V. A 4-channel expansion breakout board is available to level shift them to 5V. Not supported Via CAN bus In principle, up to 3 external stepper drivers could be connected in place of the 3-driver expansion board. Signal levels are 3.3V.
Heater outputs Bed heater (up to 18A), 2 x extruder heater (up to 6A each) Bed heater (up to 18A TBC), 2 x extruder heater (up to 6A each) Bed heater (up to 18A TBC), 3 x extruder heater (up to 6A each) Bed heater (up to 18A TBC), 2 x extruder heater (up to 5A each)
Thermistor/PT1000 inputs 3, optimised for 100k thermistors, can support PT1000 sensors with reduced accuracy 4, optimised for 100K thermistors and PT1000 sensors 4, optimised for 100K thermistors and PT1000 sensors 3, optimised for 100K thermistors and PT1000 sensors
PT100 and thermocouple daughter board support 2 boards (4 channels) 2 boards (4 channels) - second board available only if I2C expansion pins are not used 2 boards (4 channels) 1 board (2 channels)
Heater/thermistor expansion 5 more extruder heater outputs and thermistor inputs, 2 more PT100/thermocouple daughter boards (4 channels) None Almost unlimited via CAN-connected expansion boards None
Endstop or filament monitor inputs 5 on-board (STP pins are 8V-tolerant on revision 1.04 and later), 7 expansion 5 on-board (STP pins are 30V-tolerant) 9 on-board I/O connectors for endstop, filament monitor, Z probe or PanelDue connection. Inputs are 30V-tolerant. Almost unlimited expansion via CAN-connected expansion boards. 6 on-board I/O connectors plus 2 input-only connectors for endstop, filament monitor, Z probe or PanelDue connection. Inputs are 30V-tolerant.
Endstop status LEDs Yes No No No
Z probe connector 4-pin with IN/GND/MOD/3V3 pins (IN pin is 30V-tolerant in revision 1.04 and later) 5-pin with IN/GND/MOD/3V3/5V pins (IN pin is 30V-tolerant) See under Endstop or filament monitor inputs See under Endstop or filament monitor inputs
Fan outputs 3 controlled fans, 2 always-on fan connectors, voltage selectable between VIN, 5V or external supply (all fans together); 6 more controlled fans on expansion board 3 controlled fans, 1 always-on fan connector, voltage selectable between VIN, 5V or external supply in 2 banks 6 controlled fans of which 3 support 4-wire fans with PWM and tacho wires, voltage selectable between VIN and 12V in 2 banks 4 controlled fans of which 2 support 4-wire fans with PWM and tacho wires, voltage selectable between VIN and 12V in 2 banks
Servo support Up to 5 via expansion connector (3.3V drive unless expansion board used) 1 servo output on board with 5V drive (shares the output with the Z probe MOD pin and the diagnostic LED) See under Endstop and filament monitor inputs. Also one output with 5V signal level for servo, laser or VFD converter (shared control signal with one of the 2-wire fan outputs). See under Endstop and filament monitor inputs. Also one output with 5V signal level for servo, laser or VFD converter (shared control signal with one of the 2-wire fan outputs).
Input power voltage 11V to 25V 11V to 28V 11V to 32V 11V to 25V
Power monitoring VIN voltage and input to on-board 5V regulator VIN voltage VIN voltage and 12V regulator output voltage VIN voltage
LCD support PanelDue colour touch screen PanelDue colour touch screen, 12864 mono graphics display (5V signal levels, ST7920 controller) Typically provided by HDMI touch screen attached to the SBC. PanelDue also supported. PanelDue colour touch screen, mini 12864 mono graphics display (3.3V signal levels, ST7567 controller)
LED strip support No No Neopixel (max. 50 LEDs) or DotStar Neopixel (max. 50 LEDs, external 5V power required; not available if Mini 12864 display uses Neopixel lighting)
Other expansion 4 GPIO pins on Duex 2/Duex 5 expansion board, 16 GPIO pins on third-party SX1509B-based I/O expansion board 2 pins usable as analog inputs, GPIO, or UART; 2 pins usable as I2C or GPIO Almost unlimited expansion via CAN-connected expansion boards Via I/O ports only Via I/O ports only. Possibility of expansion via CAN later using a daughter board.
SD card interface speed 20Mbytes/sec 15Mbytes/sec 25Mbytes/sec 15Mbytes/sec (may be increased)
RepRapFirmware versions available 2.0 series, 3.0 series 2.0 series, 3.0 series 3.0 series 3.0 series
Legacy Duets
Feature Duet 0.6 Duet 0.8.5
Processor ATSAM3X8E ATSAM3X8E
Processor features ARM Cortex M3, 512Kb flash, 96Kb RAM, DMA ARM Cortex M3, 512Kb flash, 96Kb RAM, DMA
Networking Ethernet Ethernet
Stepper drivers on-board 4 x A4982 5 x A4982
Stepper driver features Up to 2.0A peak current, x16 microstepping Up to 2.0A peak current, x16 microstepping
Stepper driver expansion Up to 4 additional stepper drivers Up to 4 additional stepper drivers
Heater outputs Bed heater (up to about 11A), extruder heater (up to 4A), up to 4 more extruder heaters on DueX4 expansion board Bed heater (up to about 13A), 2 x extruder heater (up to 4A), up to 4 more extruder heaters on DueX4 expansion board (last one shared with Fan 1)
Thermistor inputs 2 3
Heater/thermistor expansion 4 more extruder heater outputs and thermistor inputs on DueX4 4 more extruder heater outputs and thermistor inputs on DueX4
Endstop or filament monitor inputs 4 on-board, 4 expansion 5 on-board, 4 expansion
Endstop status LEDs Yes Yes
Z probe connector No, use expansion connector 4-pin with IN/GND/MOD/3V3 pins
Fans 1 controlled fan 2 controlled fans
Input power voltage 11V to 30V 11V to 28V
Power monitoring No No
LCD support PanelDue colour touch screen (via expansion connector) PanelDue colour touch screen (dedicated connector)
SD card interface speed 21Mbytes/sec 21Mbytes/sec
RepRapFirmware versions available 1.x series (latest is 1.26.1) 1.x series (latest is 1.26.1)

Related Items