I’d like to point out tht it’s the other way around
Gear ratios are expressed as torque:speed
So it’s ideal to hav a higher gear ratio if the robot doesn’t have enough torque

no, gear ratios go like this: when you say a higher gear ratio, that means an increase in speed:decrease in torque. lower means a gear ratio that has a reduction, generating more torque, less speed.

oh yeah and one more thing…
i tried this a long time ago (about a year) and i had a 1:7 gear ratio(84 to 12) and drove it with 4 motors. i used the all purpose tires. it drove pretty fast, and for a good amount (about 10 minutes continuously) and the motors got very warm. i just don’t understand how my vex could do it and yours couldn’t. maybe i got lucky

ratios r just like fractions
a:b=a/b
which means tht it’ll be the increase in torque (since we’re only talking in positive terms)
the greater the a value (torque), the greater the ratio
the smaller the b value (speed), the greater the ratio
thus, greater the speed, the lower the ratio

try lookin at the vex manual
Section 3, Page 5 of the Vex Manual (Motion Section)

think of it as a bicycle. when you go up hills, they say to put it in a lower gear(so it is easier, which is like a reduction.) when you want speed, put it in a higher gear (more speed, is harder to turn pedals). so a higher gear is harder for the motors to turn the wheels, making it faster, and lower makes more torque, slower speed.

Sorry, I was thinking of the 36 tooth gear, which might work for what you are trying to do. As previously stated, the 24 tooth worm wheel would be useless for that…

EDIT: it’s technically 12:84, but that’s not important.

However, the bicycle gear shift’s numbers are based on the reciprocals of the gear ratios in order from 1~however many choices u hav
Thus a “lower” gear on a bicycle is technically higher gearing (gear and gearing r 2 different terms)

ok, so as soon as i can get a programming kit or Y-cables ill try the 4 motor configuration. thanks

and Royhdu,

all you’ve contributed to this thread is saying that we’re wrong about ratios. Please stop posting in this thread unless you have something useful to say.

Did you verify that what Royhdu was saying is incorrect?

Royhdu is trying to be helpful by providing Correct Terminology, so that we all can converse intelligently with other “engineers” about Gear Ratios. It is ALL about Education…