i am not even done building my reprap and i am already trying to up grade my hardware. my old board i could only get 3 stepper motor drivers on it, but not i can fit all 4 on it and with a little better spacing.
i have more work to do on it still, i might have it done tonight if i have the time.
my next order should have another arduino and another stepper motor. i am still trying to figure out how to attach my threaded rod for my z axis to the base plate, but that will come sooner than later i hope