: Dovetail-shaped notches allow panels to slide back and forth in a specific sequence without falling off the box.

: Companies like Ugears offer laser-cut plywood kits that use mechanical transmission designs to create "treasure boxes" with working lids and sides.

: Small magnets or hidden pins that drop into place based on how the box is tilted or shaken.

Mechanical-puzzle-box May 2026

: Dovetail-shaped notches allow panels to slide back and forth in a specific sequence without falling off the box.

: Companies like Ugears offer laser-cut plywood kits that use mechanical transmission designs to create "treasure boxes" with working lids and sides.

: Small magnets or hidden pins that drop into place based on how the box is tilted or shaken.