I'm two thirds of the way through building the most basic of basic robots and it's really hard lol. I have this huge new respect for the people that do this and compete, even with a basic robot as there's loads and loads to learn. I'm a computer/server engineer by trade so I'm not clueless, but 'making stuff' from scratch is ace, and your robot has the whole ethos I have, ie 'what do I have lying around I can use to make this'.