I'm often asked - "how do I build a walking robot?"
Walking robots are tough, as you need to keep balance in mind at all times. When the robot picks up a leg, how is the rest of the robot staying upright.
I put together this video as an example of one particular leg mechanism. Unfortunately you can build it from one kit (too many gears needed), but it does show you how the leg design operates.
Can you build a better version? Tell us about it in the comments.
If you want other examples of walking robots, check out Laurens Valk and Fay Rhodes excellent books.