A Handheld Fan Powered by a Makita Tool Battery in Pursuit of Maximum Wind
Make: Japan | Maker Faire Tokyo 2026 ｜キックオフイベント — くるくる動く球体ロボット、東大発OSSマイコン言語、看板型のペンプロッタ、世界最強風ハンディファンなどなど。まだまだ進化する作品群の一部を早出し！ MFT2026開幕に向けた交流イベント開催
A handheld fan is usually supposed to be small and light. KOBAYASHI KAITO ELECTRO took the opposite route with a 'world's most powerful(?) handheld fan' driven by a Makita power-tool battery for Maker Faire Tokyo 2026. The device is assembled from five 3D-printed parts and accepts the chunky tool battery directly. It remains technically handheld, but its power system has clearly wandered into the world of workshop equipment.
The fan stayed handheld, but the power source suddenly became power-tool grade. Portability is now negotiating with ambition.