I have always liked the "Mame" puzzle boxes made by the Japanese. Mame means "bean", and I assume they are so named because that's about all that will fit inside them! When I decided to make my own, I knew I had to do more moves then anyone before. This led to a small innovation...I put steps on the edge of the top and bottom panels themselves, allowing me to make a 30 move box that is almost exactly the size of the 14 move box. It would actually be smaller if my planer would mill wood thinner then 1/8th of an inch :) Each step is 25 thousandths of an inch. The level of precision in these boxes is unprecedented for me, and I feel that this is some of my finest work. Although the boxes are small, an extraordinary amount of effort went into their design and construction. I think that 30 moves is a record likely to stand for quite some time in the mame box category, as this design is pushing the envelope. To have more moves would require smaller steps; steps any smaller then these are li