Hi,
ideally you would have a bridge which would be four switching tranisors/MOSFETs/IGBTs per stepper.
Those ULN2003 ICs are just DIP cases with no heatsink.....I suspect you'll cook them long before you get to 2A
That is possible, not particularly practical, just possible.The motors that rotate at the same time will have the same steps. So my question is can I use a single driver ic to drive control two motors at the same time?
If space is that tight use SMD MOSFETS, less board real-estate and vastly more current capable.
Craig