ビー球が部屋を一周する手作りピタゴラ装置に子供も大喜び
子供のためにお父さんが作ったというビー球が部屋を一周するピタゴラ装置(マーブルマシーン)の動画をご紹介。
- [YouTube] Perimeter Marble Run RBS
Here is a perimeter marble run around my sons room. The track runs around the entire room near the ceiling. The supports are walnut and a majority of the tracks and other parts are birch. Gear motors are run by “AA” battery packs. The marbles are 1 inch diameter.
こちらもあわせてどうぞ