Hopper - Building Instructions
This is a project I've been working on lately. As its name says, it is a hopping robot moving around a room while avoiding objects.
It walks by rotating a frame, like a walker. Then, using its one foot it can turn around.
It is made from a single NXT kit. Building instructions are found here. (click)
Below is a video of the robot in action. I've also included some 3D animations of the robot.