is there a way of having an option to use "spare" thermcouple SPIO pins on Duet2 or Duex5 or both... for step, dir, enable ? I know it is doable, since one member of my FB group has such thing configured with modified RRF v2..
Thing is, with rapid popularization of IDEX machines, the inevitable progress leads to IQEX. I have such a machine, but simple i3 style. 11 stepper drivers is all i need with it. Going further, evoluting to box design, 2 extra steppers are needed (dual Y and tripple Z opposed to one Y and dual Z in i3 design) while stacking dual markforged kinematics... Having two or even four extra ports for steppers would enable heaps of progress and tinkering.
Currently my workaround is demultiplexing steppers as there is always need for more... but honestly, demultiplexing isn't the most ideal; relying on additional modules, wiring, demultiplexer itself, much more complicated and slow toolchanging, addtionaly required simple "closed loop" addons like s42b with custom firmware to have a factored steps for each module and forcing enable while module is not selected with mux... just overcomplicated.
While we could just use those pins and have extra external stepper pins available on board(s). Or at least Duex5 since we are all drooling for accelerometers...
Also, it would position duet even further ahead of alternatives...
Thank you for your consideration.