Theo Jansen. An articulate machine.

Author:
SMJepard
Look how this articulate mechanism works. Then if you want, you can show traces of points. To do this: 1. Stop animation. Look left down corner of the project. 2. Choose the point, you are interested in. 3. Click right button of your mouse and choose "Show trace". 4. Then run animation. Look left down corner of the project.