We are a small group of engineering (electronics, computer science and mechanical eng) students who are trying to design a small robot (around the size of a 3 years old kid) that can navigate both on smooth indoor environment, on walking paths of a uni. campus and also climb steps. We want this robot as a personal companion which can go around with its owner. We are trying to build this not only for fun, but we beleive all of us will learn alot from the practical side of the project.
So we are asking all, if you can contribute with your ideas toward solution of a particular issue that you think it is important to solve for the success of the project. The idea of asking this question is to create some sort of brain storming session so that everyone who is interested in step climbing mini robots can learn from others.
Can some one suggest which sort of motion mechanism we should start with?