Hi, KenF, I love it, a work of art, you could sit and watch it weight all day.
It would be a great educational tool to teach these hi-teched kids these days, that a controller and programiing and some HeathRobinson (not sure of US equivalent, I know Art Goldberg, new knew the Mythbusters would eventually help my edjamacation) can do.
Rather than just poke a iphone at it and get google to come up with the answer.
Tom.... 