I would like to put a 15 puzzle on top of my 4x4, for one side at first. i have a 15 puzzle with a slidng mechainsm differnt to the plastic 15 puzzles, this one is metal. it would fir perfectly on top. is there any way for me to put it on? (without plastic molding) using regular around the house tools? i can take the pieces out if i use a plyer to bend the metal sides down.

I imagine it would take more than simple hand tools to accomplish what you are asking. Consider that when you do even half a face turn on the puzzle, how would you expect the pieces to stay in place?

I'm afraid this is a case where constructing and molding is definitely in the works.

At least, in theory:

Patent # US4872682

http://www.delphion.com/details?&pn10=US04872682

The mechanism is somewhat more complicated than the overlapping groves found in the normal 15-puzzle toys.

i have a way for them to stay in place. i have done the math, and visual inspection. the way i am holding them in, they would not fall out on a half turn. the 15 puzzle i have is made by binary arts corp. later, i will post a pic of how it works

i have seen this before, but, mine is different.

also, the 15 i have, doesnt use overlapping grooves