Mechanics and Construction > Mechanics and Construction

Infinite Rotation Servo vs Stepper Motor

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beakie:
What is the difference between the 2 please?

They seem to be the same... except maybe for the extra torque offered by a servo.

How would an infinite rotation servo act when added to a servo controller (say Pololu)?


Thanks!

Soeren:
Hi,


--- Quote from: beakie on August 04, 2012, 02:30:25 AM ---What is the difference between the 2 please?

They seem to be the same... except maybe for the extra torque offered by a servo.

How would an infinite rotation servo act when added to a servo controller (say Pololu)?

--- End quote ---
They are very different animals. A stepper motor is a motor with a finite number of positions each revolution, while an R/C servo, whether infinite or limited rotation, is a combination of motor, gearbox and motor controller.

Steppers are drven by energizing the vindings sequentially (controller needed). The servo is controlled by a PDM signal (1..2ms pulse repeated each 20ms).

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