With some new ideas from the Japanese woodworking traditions, I tested out a locking wood joint principle. As the wedge gets hammered into the slot, it breaks the thin walls loose. The result is a sort of click joint that locks very well with the help of a lasercut 6mm wedge. After the initial hammering, you can insert and remove the wedge with your hands, yet the joint is impossible to pull apart. I had planned to apply this joint to Hiros nice CNC chair design, but unfortunately time did not permit. Will revisit in in the future though.