Because of this you can easily browse hundreds of other robots in your weight class. One of the requirements of this site is each team/robot have a profile with a picture of their bots. this website is used by most competitions for registration. A good place to start with your research is the builders database. When I start the project I always take a look at what people have done already and draw from the knowledge learned by others over time. The first step to building a bot is to think about what kind you would want to build.