This is The Glass puzzle box. This box takes around 120 steps to open! To do so you have to navigate a marble through a complex maze, and solve the challenging sequences of the two sets of interlocking sliders. While doing this you can see exactly how all the mechanisms work!
This box is bigger than you think. It’s 90 x 136 x 208 mm.
When I was designing the maze and the mechanism of the sliders for this puzzle box I used a program called burr tools to find the optimal configuration for the sliders. Because of this I only knew the path through the maze that the marble should take when opening the puzzle box. I didn’t know how to find my way through all the sliders. The first time opening this box took me almost two whole hours. When I opened the box for the third time while making a youtube video, it still took me 45 minutes to do so.
Because the box is made out of acrylic, you can see everything that’s going on. This gives you a deeper understanding about the mechanism, and the way puzzle boxes work. This box is perfect for people who want to understand the underlying principles for a puzzle box.
One of the biggest challenges for designing this puzzle box was making a box which can be held together with only six bolts. All the parts have to be assembled in a very specific order which still confuses and delights me at the same time. It feels like solving a puzzle.
Be warned… Although you can see everything, this box is very difficult.