Never Mind the Ball Locks Here's The Gob Stopper Burr Puzzle The last few pictures show

The last few pictures show the size of these puzzles

which made it a fascinating design space to explore

barely legal complex move

These things have real heft

A 3D printed version is also available

Never Mind the Ball Locks Here's The Gob Stopper Burr Puzzle The last few pictures showWe particularly like this puzzle, it not only looks fantastic it is an engineering challenge in its own right. To make these unique turned puzzle balls : We take a Missionary puzzle from the Joy of Hex set. The next job is to assemble the hex puzzle. The puzzle is placed in a lathe, in the correct orientation. There's only one. Machine the puzzle into a ball and hope that the puzzle stays assembled (see point above). Carefully dismantle the ball