This video shows off just how tightly and precisely two pieces of wood can be joined together, using an ancient Japanese technique called a “sunrise dovetail” joint, which avoids the need for nails or other fasteners.
A dovetail joint or simply dovetail is a joinery technique most commonly used in woodworking joinery including furniture, cabinets, carcase construction, log buildings and traditional timber framing. Noted for its resistance to being pulled apart, the dovetail joint is commonly used to join the sides of a drawer to the front.
A series of pins cut to extend from the end of one board interlock with a series of tails cut into the end of another board. The pins and tails have a trapezoidal shape. Once glued, a wooden dovetail joint requires no mechanical fasteners.
The dovetail joint probably pre-dates written history. Some of the earliest known examples of the dovetail joint are in furniture entombed with mummies dating from First Dynasty of ancient Egypt, as well the tombs of Chinese emperors. The dovetail design is an important method of distinguishing various periods of furniture.