The crew making waves! For the rocking ship, crew members lay on the floor and rock the octagon using 2x3 levers. Additional crew hold up the mast & sails. During scenes when the octagon is to be stationary, coded wedges are inserted. We were able to have 3 different angles. The huge hinge is created by using an 1 1/2" pipe between 2x10 tapered brackets. Just one of the scenes using the octagon at a fixed angle. The octagon was built in several pieces. The top is a stressed skin platform. The rolling base is a standard 4x8 platform with six castors. These wedges are hinged to the lower platform and controlled from the back via 1x3 lumber. Three sets have different angles attached.