4 x 4 with differentials (Bottom View)

You can see from this image the underside of the 4 x 4 with differentials. It gives you a good look at the geartrain, especially the gearing from the middle differential to the front and back differentials. The gearing through this train is 3:1, then 3:1 again, for a total of 9:1, which compounds with the 3:1 ratio between the motor and the middle differential to give a total ratio of 27:1.

Notice the 1x2 bricks (with holes) which allow for the wheels to extend away from the main structure. This prevents the tires from rubbing against the frame structure and causing power loss.

Send

E-Mail to the Greek!!
( Craig.Lampe@UTSouthwestern.edu )