five screw puzzles by george hart —

Founded five screw puzzles by george hart models & stl files for printing
Ice Puzzle  Brain Teaser
Creative MinerX
3DBrainPuzzle
Jorre S.
Yin and yang Puzzle
MaximumMaxx
Puzzle Pig
Tersh
Puzzle Pig
Tersh
Dirty Dozen Puzzle
SleepSlon
3 Cube Puzzle
mtairymd