Back a few months ago, Lloyd Eighme, president of the Northwest Washington Woodturners, challenged the membership to make a puzzle for which he furnished a drawing. This puzzle is pretty simple, fun to turn and fun to figure out. The only critical dimensions are that the square pieces will pass through the slot, the ring will pass through the slot but will not go over the large end of the shaft. The beads must not pass through the slot. Other than that, the dimensions are simply to make it look good. You want to cut the slot while the piece is still in the square. I started with 1-1/2" x 1-1/2" x 9" piece of wood. I cut a slot 5/8" wide by about 3-1/2" long. The squares are 1-1/2" x 1-1/2" by 1/2". The beads are 3/4" in diameter. The ring has an inside diameter of 1-3/8" and the cross section of the ring is 1/2". The object of the puzzle is to remove the ring without undoing anything. I made several in different sizes. Have fun.
Here's the puzzle as it is assembled.
Here's the puzzle after its solved.