Low cost spin actuators

1. An actuator, comprising:

a stationary frame;

an output plate disposed within said stationary frame;

a top plate;

a stator disposed between said stationary frame and said top plate, said stator describing an annulus;

a rotor disposed within the annulus of said stator;

a principal bearing disposed between said stationary frame and said output plate;

a pinion gear; and

a first star gear which meshes with said pinion gear.

2. The actuator of claim 1 , further comprising a second star gear which meshes with said output plate.

3. The actuator of claim 2 , wherein said pinion gear also meshes with said second star gear.

4. The actuator of claim 1 , wherein said rotor includes a rotor disk disposed between said stator and said first star gear.

5. The actuator of claim 1 , wherein said output plate forms an external surface of said actuator.

6. The actuator of claim 1 , wherein said output plate and said top plate form first and second opposing external surfaces of said actuator.

7. The actuator of claim 1 , wherein said first star gear which meshes with said pinion gear at a reduction ratio of 4.

8. The actuator of claim 2 , wherein said second star gear which meshes with said pinion gear at a reduction ratio of 4.

9. The actuator of claim 2 , wherein said first star gear and said second star gear have an amplification factor of at least 2.4.

10. The actuator of claim 1 , further comprising:

a wire channel which extends along a rotational axis of said output plate.