Originally Posted by pminmo  They work the same way, same performance issues. Two phase full step, the tachus42 pcb has proven layout. The light bulb current limiting on the instructable circuit is less than desireable and motor dependent. |
If you don't want to use light bulbs: When you pick motors, you'll need to calculate
if and what value current limiting resistors you need using the voltage of your PSU and the coil resistance of the stepper.
Oh and BTW, I would probably use a pminmo board layout if I were doing it from scratch.