The more steps, the finer the smallest movement the machine can make. That said, a 200 step motor on 1/2-10 rod moves the axis .0005". That's a half of one thousands. I doubt you could see it in a circle, no matter which motor you use.
Still, since 200 step motors are cheap and plentiful, I would use them if you can.
Eric
__________________
I wish it wouldn't crash. |