2011-10-15, 08:05 PM
use lego gears.
attach them like this
\/string
-----------OO
where the second O is the small gear on the axle, and the first O is the string turning the big gear so that the big gear turns the little gear.
depending on the ratio between the two gears you might be able to get sixteen turns of the little gear for every one turn of the big gear
attach them like this
\/string
-----------OO
where the second O is the small gear on the axle, and the first O is the string turning the big gear so that the big gear turns the little gear.
depending on the ratio between the two gears you might be able to get sixteen turns of the little gear for every one turn of the big gear