five screw puzzles by george hart —

Founded five screw puzzles by george hart models & stl files for printing
Puzzle box 1
merakrom
Puzzle Block C
BentWeiss
Puzzle Block D
BentWeiss
Puzzle Block A
BentWeiss
Puzzle Cube
alex_3dprint
Screw Bushing
GerryPB
34 Screw
bjripp