DIY Traditional Japanese Wood Joinery-Tenon and Mortise Splices( Mechigai-Tsugi.Mechiire)

Tenon and mortise splices (Mechiire/Mechigai tsugi): (1) Cross-shaped tenon and mortise splice (Juji mechiire/Juji mechigai tsugi) (2) Right angle tenon and mortise splice (Kancori mechiire) (3) Housed tenon and mortise splice (Kakushi mechiire/Kaku