Chief Delphi - Robot lose power when reverse directions?

Quote:

Originally Posted by Intel i7 (Post 1131266)

we are in fact geared at 20:1 and are looking at te possibility of going to 30:1

vehicle top speed in feet/sec = pi*N*d/(G*720),

where

N = motor free speed in RPM

d = wheel diameter in inches

G = geardown ratio from motor RPM to wheel RPM

so...

for 20:1 gear ratio:

pi*5310*12/(20*720) = 13.9 feet/sec

for 30:1 gear ratio:

(5310*12/20)*(3.1416/720) = 9.3 feet/sec

Because the center barrier divides the field in half and rules out any full-court sprints, the 9.3 feet/sec is probably fine, plus you'll have a whole lot more pushing torque and fine control of low speeds.