Recently finished a self-balancing skateboard contraption, and thought you folks might be interested. Its more intro micro-controller and heavier on the machining side, but, it was an interesting experience on iterative design.
Super nice project, congrats. This sentence is missing a 'controller': "so i opted to tap the fans into the motor housing.", and further down it has ', for affed effect, I '
I'm really really jealous about all the nice toys you get to work with and what a great place where 'scrap' of this quality is available. Tinkerers paradise :)