The table is also made of plywood, as is the major part of the curved sector that mounts to the platform at a 45 degree angle. Polyester and Fiberglass are used to strengthen the sector piece. To see how to build the platform and sector, click here.
By adjusting the two screw feet below the bearings, this can be made to work for latitudes from 35 to 55 degrees.
Now it's time for alignment with the North Celestial Pole.