Cold Fusion is a six-piece burr, but not a
classic one. The pieces are helical and the puzzle is taken apart and put together by pushing the pieces in a helical motion.
This version is made of metal.
Watch the
YouTube video of the metal version.
Watch the
YouTube video of the nylon version.
Read at the Shapeways Forum
here and
here.
Read more at the Non-Twisty Puzzles Forum
here and
here.
Read also at the
Puzzle-Place Forum.
Buy a fully colored and assembled sample (limited edition) from
PuzzleMaster.