Building Robots With Lego Mindstorms

22 Chapter 2 • Playing with Gears

Geartrains give you incredible power, because you can trade as much velocity

as you want for the same amount of torque.Two 1:5 stages result in a ratio of

1:25, while three of them result in 1:125 system! All this strength must be used

with care, however, because your LEGO parts may get damaged if for any reason

your robot is unable to convert it into some kind of work. In other words, if

something gets jammed, the strength of a LEGO motor multiplied by 125 is

enough to deform your beams, wring your axles, or break the teeth of your

gears.We’ll return to this topic later.

NOTE

Remember that in adding multiple reduction ...