I liked the idea of modifing the servo motor. what i am thinking of, is that after modifing the servo, it can operate as a stepper motor. That could be done by gving one pulse to the servo control signal. one pulse will give one step only. the pulse width will control the resolution which is degrees per step.
Am I thinking correctly about this issue? i serached a lot to find more details that could help be but i did not. so what do you think??