## Video

## Structure

The katana has modules of a blade and a grip.

The blade module consists of blade shells, a shaft, and a LED tape. The shells are made with a 3D printer and glued. The shaft prevents the blade module from bending. The LED tape is a 4 mm wide NeoPixel tape and contributes on the thickness of the blade (12 mm).

A Seeed XIAO and a 18650 Li-ion battery are in the Nakago, the inner region in grip of original katana. The shaft is fixed on the Nakago with the shaft holder.