Impossible Dovetail Puzzlebox Improved

thingiverse

I took one of the solutions to the dovetail puzzlebox by jphnny4 and made some additions. This thing is quite small (less than 2 in square), so think about scaling it up if you want. * Center hole for hidden item * Matching holes to add a magnetic ball lock * Deleted the top and bottom decorations (I didn't really like them) These will easily print without support with the flat side of each piece on the bottom. Be sure to sand the sides and edges on the inside of the puzzle before fitting (It prints very snug and sharp). For the magnet ball lock, assuming you don't scale the puzzle, superglue or epoxy a 3 mm diameter magnet into the matching hole on the side that is shallower. I actually used two smaller magnets to create a better catch, but it doesn't matter too much. On the other side with the deeper hole, I used a 1/8 inch diameter steel ball bearing. Before locking, test fit and make sure the puzzle is smooth and the ball can easily move through the hole. Then, simply assemble and turn over, the ball should connect to the magnet and lock the puzzle. Now the solution is to tap the puzzle to dislodge the ball/magnet lock then pull the pieces apart. *Apologies for switching between metric and imperial units, that's just how they size magnets and ball bearings when you buy them on Amazon