How the original inhabitants punched holes in stone or jade

Holes in jade.

It is generally divided into two categories.

One is to use a solid conical tool dipped in the jade sand for punching.

The other type is pipe drilling.

That is, a bone tube or bamboo tube is dipped in the jade sand for punching.

The upper holes of stone tools are similar.

The processing of jade in the Neolithic period was limited by technical conditions, and the artifacts were mainly plain (directly polished flat or curved surfaces), and the ornamentation was mainly single-line Yin carving (a concave line drawn directly on the plain surface), with rough lines, poor grinding work, and shallow engraving depth.

Most of the artifacts of this period will have holes, and there are two main ways to punch holes:

1. Single-sided drilling, commonly known as "horseshoe hole", that is, starting from one side of the hole, the smaller the hole diameter is, and the hole as a whole presents the appearance characteristics of one end and one end narrower (which can be used as the basis for identification).

2. Double-sided drilling, that is, starting to punch from one side, after hitting to the approximate middle position, and then starting to punch from the other side of the corresponding position, the completed hole has stepped traces, and the overall hole presents the appearance characteristics of large and narrow at both ends.

3. Pipe drilling, evenly drilled from top to bottom, and the hole shows spiral traces.

In the late period of the new era, the processing technology was improved, and it developed from plain noodles to simple crimping relief technology. There is a typical animal face pattern, the animal face pattern process is mainly a simple relief, the eyes and nose are slightly raised, and a relief technique is used, which is developed from the Yin line pressing process.

As mentioned above, first draw and press out two spaced black lines, and then grind down some height on the outside of the two yin lines to make the middle part slightly prominent, so that the outlined picture has a certain three-dimensional feeling. Good luck!

The simplest principle is to use bamboo sticks to drive some small sand harder than jade, constantly rotating and rubbing, over time, jade will be out of a small hole, in fact, this technology is still used by the Chinese until modern times, but later with the mass popularity of electric appliances and no one uses it anymore, but modern technology can not reach the delicate sense of ancient craftsmanship. The small sand used to rub jade is actually some quartz, that is, the particles of crystal, which are harder than jade, so they can grind through jade, but this takes a long time, and there were some simple mechanisms in ancient times to help achieve precise positioning and piercing.

The large hole is added with a bamboo tube to add water to the jade sand, and the small hole is chiseled first, and then the simple tool is used to add the jade sand and water.