How to make a cube with a secret





LRA old northern Russian puzzle. Within such a cube hiding place  composed of six plates in antiquity hid some valuable thing.

Look at the picture. The secret lies in the cube element 3, which acts as a latch. To open the cache, you need to click on the item up, and then move it into a cube. Workpiece elements - six plates measuring 65x40x6 mm. If these boards are not there or you want to make another cube size, you can easily calculate the new dimensions. The value of the cache is determined by the width of the plate. Let this width is b mm. Then the length of the slot in the blanks will be determined by the formula a = b + 3 mm. Other dimensions of leave such as in the figure.







To the construction of the puzzle must be taken seriously. Every detail has to be done very carefully and accurately. Wood should always be dry. After fabrication of each element of its sanded with sandpaper. Plate 3 do last. Before the groove cut in it, to fold the other five plates together, as shown the second stage of assembly, and to measure the slots between the elements 1 and 2, which should go into plate 3. zazisimosti the values of these grooves 3 define the dimensions of the plate and then customize it in place. It is important that onf included in the groove with a little effort, and then snaps for item 2.