[CanadianEgg]

Spur gearboxes have straight teeth mounted on a parallel. The advantages are: low cost, high gear ratios, compact and high torque output. The disadvantages are: high noise level and prone to wear.

Planetary gearboxes include sungear in the center. Ring gear is the outer ring of planetary gearboxes and planetary gears rotate around the center. The advantages are: high power density, compact, efficient, stable and the is low distribution. The disadvantages are: high barring loads, complex design and inaccessibility.

Transmission/Shifters are designed for robots weighing 50-200 pounds. The top equals high gear, high torque equals low gear. Although low gear controllable and uses less current.

-Britton & Amy