Close-up of drive wheel with twelve spokes. One pair of uprights that go through the table holds the drive-wheel axle. A second pair of uprights, also set into the table, is connected to the first set by a threaded screw.
Close-up of drive wheel with twelve spokes. One pair of uprights that go through the table holds the drive-wheel axle. A second pair of uprights, also set into the table, is connected to the first set by a threaded screw.
