Thanks. My dad makes wooden clocks as a hobby, he hand cuts every gear out of birch plywood, I can't imagine how tedious that is! The clocks work great during the winter (though he's constantly adjusting things and trouble shooting them) in the summer the wood swells and they stop working until the drier weather comes around. All of his clock gears are covered with little pencil marks where the clock stopped and he was trying to figure out which gear has a problem. He has patience, that's for sure.