how can i make a walking robot?

Answer 1

Stiquito is a walk robot made from a kit using Nitinol wire. It is a very cool inexpensive walking robot that you can build. I have enclosed a link.

Good Luck!

http://ourworld.compuserve.com/homepages/stiquito/whatisstiquito.htm

Answer 2

there are two main levels of compexity.
1) if the robot can stand on some number of legs while another moves, it's called statically stable. this is the case of a 6 legged insectoid that moves 3 at a time, or a four legged that moves 1 at a time. to make a statically stable 2 legged robot the foot print has to wrap around the center of gravity. this is done by making the foot 'C' shaped, and the front/ back of one foot is lifted above the other foot as it is moved forward.
this is the cheap, introductory system.

2) if the robot has to detect changes in it's stance, it is dynamically stable, statically unstable. this is the kind of robot that is built by corporations and universities. you can study, but don't expect to build one in your garage.

email me through my store and we can talk more.
brian

Answer 3

.... but if you mean a humanoid walking robot, then the answer is: "...with lots of money..."!
You can either buy one of those kits
http://robosavvy.com/site/
or spend a few million on R&D like Sony did for theirs:
http://www.youtube.com/watch?v=WPqkAYGlynI