Another NXT Design from Yoshihito Isogawa
This is a gearless steering mechanism found in Yoshihito's book, "Lego Mindstorms NXT".
The steering mechanism has its limitations; for example, it can only steer in one direction. (The steering direction can be changed by moving the "swivel" pin to another point on the chassis). Despite its limitations, it's a good model for students and persons new to the NXT.