For the past month I've been designing this sequential discovery puzzle box - 36 moves to open the main chamber and an additional 49 to reach the secret compartment : r/3Dprinting
Puzzling in wonderlands: The 10 best sequencial discovery puzzles
PuzzleMad: Not a box! A sequential discovery puzzle with a cavity!
Dragos - The ultimate sequential discovery puzzle box on the planet!! Real diamonds, and silver among other semi-prec… | Puzzle box, Leather bound journal, Puzzle