Spining Tunnel

    The spinning tunnel we built in the summer of 2003, and it took us a few weeks of working on it off and on to finish it. This how to, is more of a guide and documentaion of how we procded to make ours rather than full instructions. Im not shure about the cost but it would probably be in the range of a few hundred dollars to make. Our tunnel consists of two wooden rings made from three layers of 1/4" plywood connected to each other by 6, ten foot steel pipes. The entire cylinder is held up four bycile wheels