I can't really be bothered to make some technical drawings at the moment (although I'll most likely make some up later) but my idea for a robot would be to create a small 'SolderBot' for aiding in the creation of microelectronics (ICs etc). It will be able to move freely using either infrared or sonic sensors and directional jets. Its main function will be to heat and dispense solder onto critical point, but it can also perform QA and fault-finding actions also.

I'm currently working on the jets for the bot, which I'll post soon.