The Duet 2 Maestro has two external stepper driver ports and this module is design to connect to them and provides:
- 2 x Super quiet TMC2224 stepper drivers: SPI controlled and capable of up to 256 microstepping with optional interpolation from any lower microstepping setting to x256
- Configuration of microstepping, power, stepping mode from the Duet 2 Maestro - the same as the on board drivers.
- These drivers can be used as two additional extruders or remapped (see Drive Mapping) to another axis. For example this allows the Maestro to be used for a IDEX style printer or a 4 colour mixing hotend printer.
The 2 sets of 8 pins mate with the matching headers on the Duet 2 Maestro:
Optionally a plastic stand off can be used to support the module through the matching hole in the Duet 2 Maestro.
One or two motors can be connected to the expansion module. They are numbered Drive 5 (E2) and Drive 6 (E3) within RepRapFirmware.