--David
QUOTE: Originally posted by BR60103 Hi, Gordon Highlander! The easiest way to do it is to get a big board and put the roundhouse on it. Mark the track centerlines and project them to where they all meet, which will be the center of the turntable. They should all meet at the same point! If you can't get a centerline easily, mark the middles of the back walls and the front walls and join them up. I'm not sure, but you might be able to put a yardstick along both outside walls and work from that.