Hi, i am a student of bachelors of mechanical engg. (2nd year). I want to build a go cart. But i don't know the basics. I don't know a thing about automobiles. I am learning the catia software for designing. But i don't know what kind of "calculations for go cart" must be required to design the cart in catia. I have to start from zero level. I want to know how to do calculations for the cart and design the chassis frame and decide the dimensions and all the other stuff (eg. steering, brakes, suspension etc.). Please suggest me where to start from.