We made a "留め型隠し蟻五枚組継 -Tomegata Kakushi Ari Gomai Kumi Tsugi-,'' said to be uniquely Japanese woodworking joint. In English, it is full blind dovetail (secret mitre dovetail). When assembled, the intricate dovetail joints are invisible.
This is one of the wooden joints for "First-class Furniture Manufacturing Technician," a national qualification in Japan that is equivalent to the Meister System.
The video also includes a description of the Japanese traditional tools used, processing techniques, and tips.