Originally posted by thielert
Additional points to note:
Servos reach their rated torque as they approach their max RPM.
Steppers have their rated torque while not moving. Their torque quickly dissipates with speed. |
This is not entirely correct: servos reach their rated
power as they approach their rated speed. Their torque is constant, until you go faster than the rated speed.
While steppers, as you say, quickly loose torque with speed. This can be counter-acted somewhat by using a PWM stepper drive (like the Gecko), but steppers will never have the speed or smoothness of a servo.
// Arvid