Kumiko
Jigs

Beech angle jigs for cutting kumiko panels.

They were made for the sake of repetitive precision. Kumiko requires hundreds of pieces at the same length and the same angle. Without a jig the work sits on the edge of concentration — a small deviation accumulates and the whole panel stops fitting together.

Each jig sets a precise stop for a given piece length and allows the same cut to be repeated without measuring. Four angles: 15° / 75°, 22.5° / 67.5°, 30° / 60°, 45° / 90°.

Most of the work happened at the table saw. Precision mattered more than hand tools here. The jigs are not a product. They are part of the process — workshop aids that get used, worn down and replaced.

The value was not in inventing something new. Similar jigs exist everywhere. The value was in making them carefully — because then they work quietly and stay out of the way.