how do you build a robot out of legos?

i have to build a robot without buying something from a store. It has to be able to move with out me touching of any sort. Its extra credit if i have a remote control with it.

ejp10878 years ago
Does it have to be made out of legos?
Kiteman8 years ago
If you try this simple robot, you could tell your teacher that you do not need a remote control because it senses obstacles and gets around itself.

If you are up to the challenge, there are many other robot projects here - just use the search function at the top-right of every page.