The north wall is attached to the the east and west walls by these easy to remove wood boots. The east wall is in the forefront in this image.
The east and west panels have been removed, and the north and south canvas panels have been dropped. You can see the south canvas panel in its laid down position in this image. The horizontal plywood sections on both sides of the telescope give the east and west walls their structural strength. Without them they would flop in the breeze because of the loose joint connecting the two west walls together. Likewise for the two east walls. One of the loose joints, the one joining the two west walls is seen in the forefront of this image. The joints were purposely made loose in this fashion. Because the walls, each measuring 53" wide and 69" high, have such a high surface area to be caught by the wind during setup and takedown, I felt the frame would not be able to structurally withstand, and still be light weight, a more conventional hinge. The loose hinge design has worked very well in very windy conditions.
