How to put six small parts of Luban lock into a cube?

In order to make it easier to see, this disassembled part of Kongmingsuo is numbered, as shown in the figure.

Take it away. No. 1 and 5, and arranged according to the following pattern.

The key to this Kongmingsuo is the assembly of No.3, as long as it is installed, the subsequent assembly will follow.

When 1, 5 and 3 are all assembled, install No.2 in the position shown in the figure.

At this point, I believe everyone knows how to install the remaining No.4 and No.6.

After installing No.4, there is no suspense in installing No.6, just insert the last hole and it will be OK. The assembly is completed here. As long as the first few pieces are installed correctly, the back is simple.

Kongmingsuo, also known as Bagua Lock and Luban Lock, is a traditional fixed connector for civil buildings in ancient China.

Luban Lock originated from the tenon-mortise structure of ancient buildings in China. The concave-convex part (tenon-mortise structure) in this three-dimensional splicing instrument is very clever. Originally a wooden structure, it looks like a perfect cross cube. There are many Kongmingsuo toys with different shapes and internal structures, which are generally easy to disassemble and difficult to install. Observe carefully, think carefully and analyze its internal structure when assembling.

There are various types of Luban locks. Among them, the most common six (the first generation, the second generation or Grade A and Grade B) and nine Luban locks (the third generation or Grade C) are the most famous. Among them, six Luban locks have different structures according to different regions and design concepts.

According to the tenon shape, six-disc locks are mainly divided into two categories: A and B. Of course, the tenon shape of six-disc locks is far from limited to these two categories. Nine Luban locks, some of which can be selected to complete "Liuhe tenon", "Seven-star knot", "Eight-point buckle" and "Luban lock". It is not easy to realize the four-meshing structure by satisfying different numbers of nine tenons at the same time.