¶ Introduction
This is an expansion module specifically designed to connect to the two external stepper headers on the Duet 2 Maestro. It has two TMC2224 drivers on board, bringing the total drivers on the Maestro to 7.
¶ Features
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 using M584 to another axis. For example this allows the Maestro to be used for a IDEX style printer or a 4 colour mixing hotend printer.
¶ Mounting
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.
¶ Wiring/ Pinout
One or two motors can be connected to the expansion module. They are numbered Drive 5 (E2) and Drive 6 (E3) within RepRapFirmware.
¶ Errata
A PCB layout error (this board was not designed by Duet3D) has been discovered that causes Drive 5 (E2) to function poorly at high speeds. See this thread on the forum for how to fix this.