The upper and lower caps can be cut to length on assembly or left long at the front of the rib and trimmed later. The upper cap is now located over the drawing. This one is curved in shape but is still secured in the same manner. The vertical and diagonal members are now cut, fitted and glued in position over the drawing. Staples are driven in appropriate positions to hold the gusset until the glue cures.
Gussets come in various shapes and sizes throughout the aircraft structure.
The light plywood from which they are formed is very easily cut with tin snips. We have seen welds broken at the weld in welded aircraft, and rivets popped out of aluminum aircraft, but never. Back to our rib. When all the gussets are stapled in place, the rib may be immediately removed from the fixture and set aside to cure. Ribs can be built one behind the other in this fashion, as quickly as you want to work.