How do i buld a multi speed k'nex gearbox? Can any one give me a page with instructions?

I am trying to buld a muulti speed k'nex gearbox with a shifter can someone help?

zmxninja5 years ago
check out mine; it would be hard to have many gears as there are only 3 good gears; it would have to have many rod levels, but check out mine none the less
Sorunome7 years ago
it's quite easy to invent at you'r own. To gain speed use bigger gears that grab into the smaller gears.
David97 (author)  Sorunome7 years ago
I know that i made a box with a ratio of 72 to 1.
The trobble is a shifter to canges to at least 4 gears.