The Duet 3 Tool board is a CAN-FD connected expansion board for the Duet 3 Mainboard that is designed to provide complete control for a direct drive extruder, associated fans, filament sensor and probe. The mounting holes and connector locations match an e3d Hemera (v1.2) or Hemera XS(v1.3) , however it can be used with other direct drive extruders with suitable brackets. The stepper motor, heater, temperature sensor, fans and optionally Z probe and filament monitor all connect to the Duet 3 Tool board, leaving only CAN-FD and power wires to run back to the Duet 3 Mainboard or Tool Distribution Board.
There are two current versions.
V1.2 – Hole spacing for the E3D Hemera
V1.3 – Hole spacing for the E3D Hemera XS (11mm closer together)
The overall board dimensions are unchanged.
The connector pack includes the following:
JST PH housings + crimps for the Driver 0, OUT1, 2, IO 0,1,2 and Temp connectors
4-way JST ZH tail 100mm+ with plug (CAN in)
2-way JST VH housing & crimps
White single ferrules for heater screw terminals
FEATURES:
Processor:
ARM Cortex M0+ processor running at 48MHz
Connectivity
CAN-FD:
interconnect to main controller board and other Toolboards or expansion boards
Stepper Driver:
One TMC2209 stepper driver with stall detection and stealthChop. Maximum output current 1.6A peak, 1.1A RMS
High current outputs:
1 x 5A rated output for the hot-end heater (60W at 12V VIN, 120W at 24V VIN, 24V recommended)
Medium current outputs:
One 3-wire fan output (also accepts 2-wire fan); one 4-wire fan output (also accepts 2-wire fan)
IO:
Two thermistor or PT1000 inputs. One uses a 16-bit ADC for high resolution reading of PT1000 sensors; one 3-pin filament monitor connector; one Z-probe connector; one footprint to mount a ultra subminiture switch; two push buttons and indication LEDs; 12 to 32V power input; On-board 12V, 5V and 3.3V regulators
Firmware:
RepRapFirmware 3.x (3.4 or later recommended for using the accelerometer with input shaping)
