The Sword in the Stone is a steel and aluminum puzzle inspired
by the tale of how King Arthur earned the throne. To solve the puzzle, the puzzler must
get the "sword" out of the "stone" with no real force.
Puzzle after solved
For the project, I:
- Gained hands-on experience fabricating complex parts via CNC machining from
steel and aluminum on a Tormach mill
- Created Gcode with HSMworks CAM - CADed parts and system in Solidworks
- Designed puzzle mechanism utilizing a Roller Clutch
Puzzle parts before assembly
GCode and CAM Toolpaths from HSMworks
Warning: Puzzle Solution Hints Below The sword drops into the stone under it's own weight, but cannot be withdrawn
unless the puzzler manipulates the peices correctly. This is due to a one-way motion
mechanism utilizing a roller clutch.
The pins visible from the bottom are related to the puzzle mechanism.
Remember: the puzzle can be solved with no real force.
Still stumped? Check out the cross-sectional drawings below for more inspiration.