Yang Wenli and the teenagers exercise a lot every day, and they are all big stomachs, and they can eat three bowls of rice alone, which is almost a catty.

The family kills chickens and ducks almost every day, and kills a fat pig every ten years, no wonder the old lady is heartbroken, you must know that before this, she even ate an egg and a piece of tofu It was a good dish.

Not to mention anything else, just because every teenager has to eat rice soup and soak eggs every morning, it is enough to lose, and there are two per person. Because there was no milk, Yang Wenli replaced it with early eggs, and he just hollowed out his thoughts to supplement the nutrition of the teenagers. Otherwise, why are they all big men at such a young age?

……

"Look, the bamboo pieces should be cut into the same shape as the bowed belly. First of all, brush a little thin fish gelatin, let it air dry, and brush the inside of the bow belly and bamboo chips, which is to enhance the adhesion performance.

It doesn't take too long, the surface is slightly air-dried. Then we use thick fish gelatin to dip the bamboo slices tightly, and the fish glue should be evenly coated, not too thick, as long as the bamboo slices are firmly attached.

All right! We are ready to dip the beef tendon on the other side, and it is the same step, brush the glue twice, first thin and then dry,...... "One afternoon, after the exercise, Yang Wenli personally demonstrated and taught the teenagers how to make bows.

Fish glue is a good thing, and in terms of adhesion performance, the most advanced chemical glue can't compare to it. Once it is stabilized, it can remain glued for 100 years.

The practice of fish gelatin, Yang Wenli did not learn the methods of the ancients. He uses the fish scales of herring fish soak, and mashes it into a pulp while it is fresh, the adhesion of this fish gelatin is the most domineering, as long as it is dry, it is like being born, and no matter how you think of it, you can't separate it.

The beef tendon was secretly slaughtered by Yang Wenli from his own buffalo, and he also bought some beef tendon from other places at a high price, and it was finally prepared.

The best tendons for making bows and arrows are cow tendons and deer tendons, and Yang Wenli is a perfectionist, so he can get them all for even adventures. To do it is to do the best, this is his motto.

This bow, two per person, one is a short bow, about 1.2 meters, also known as a riding bow, five bucket bows, the strength is relatively weak, can only shoot light arrows, suitable for riding archery, but also suitable for ordinary people.

The other bow is about 1.8 meters long, it is a hard bow, also known as a two-stone bow, with a long range, suitable for firing heavy arrows, a special bow for armor piercing, which can not be pulled by ordinary people, and is dedicated to famous generals in ancient times.

Of course, Yang Wenli and the family can pull it away, but they can't pull it much, the two stone forces are not a joke, they have basically broken away from the scope of ordinary people, and the two stone bows will only be used to shoot important enemy people in the future, when the ancient version of the smash gun is used.

At this time, you can wrap the silk thread, the silk thread should be selected from the best silk, and several layers should be tied on the main stressed part of the bow body, especially the bow arm part that has just been dipped in bamboo and beef tendons, as well as the ears of the bow and arrow.

Winding silk thread takes time, and it takes considerable patience, so small silk should be tightly wound, and a layer of fish glue should be brushed, which is not much more than embroidery.

After three days, the thread is wrapped and the final step of painting can be carried out. The purpose of painting is not to look good, but to protect the bow from moisture so that it does not lose its elasticity. Therefore, Yang Wenli also brushed several layers of tung oil before painting, and the tung oil can be brushed even on the ship board to prevent the ship board from getting wet, which shows that its waterproof performance is very good, so Yang Wenli added this process.

Brushing paint is generally ten days and one layer, and it takes three to five layers to brush, and this brush is two months of work, so it is time-consuming to make a bow, and there are still ready-made materials, otherwise it really takes three years to make a bow.

When the paint is dry, a qualified bow is basically finished, and it is ready to use as soon as it is wound.

The bowstring was already made during the bow-making period. Most people think that the bowstring should use cow tendon to enhance the elasticity, but in fact, it is a big mistake, on the contrary, the bowstring is the most taboo elastic.

The power of the bow comes from the bow arm, and if the bowstring is elastic, it will cancel out some of the tension of the bow arm, which is harmful.

Therefore, the material used by Yang Wenli to make the bowstring is 60% silk and 40% twine, which is very strong. Everyone knows that silk is very tough, and it is a few chips stronger than steel, and it is the best material for making bowstrings. Twine is used to prevent silk from becoming elastic, not to enhance toughness, so a ratio of 6 to 4 is most suitable.

Bow and arrow, bow and arrow, there must be a bow and arrows, here Yang Wenli used another trick.

The ancients made arrows completely by cutting, and cut them one by one by hand, which can be seen to be very time-consuming and labor-intensive. Yang Wenli's trick was inspired by seeing someone make wooden poles with an electric drill in a previous life.

There is no electric drill here, but there is animal power, and through animal power, a large gear can be used to drive a small pinion, and the speed of the small gear can reach a comparable speed.

With this semi-automatic method, the shaft is cut with the same mold, and the shaft is guaranteed to be exactly the same. In addition, the bow body of the standardized process can ensure that the same pulling force and the same elevation angle are basically the same range, which is the benefit of standardization.

There are two kinds of arrows, one is a light arrow, a five-bucket bow is used, and a heavy arrow is used for two stone bows. The difference between a light arrow and a heavy arrow is that there is a difference between an arrow and an arrow shaft.

Let's not talk about arrows, the difference between the arrow shaft is wooden, light arrows use lighter wood, such as paulownia wood, and heavy arrows use larger miscellaneous books, such as iron wood, sandalwood. Among them, sandalwood, which is found everywhere in the mountains of southern China, is easily obtainable.

The Arrow Yang Wenli chose the Mitsubishi Iron Arrowhead, a short light arrowhead, and a large heavy arrowhead, all of which use the same Mitsubishi shape.

Everyone knows that the stab wounds of the Mitsubishi Army are difficult to stop bleeding, and they are basically stabbed one by one on the battlefield. Mitsubishi arrows are also based on the same principle, and they are very lethal.

It is very easy to make Mitsubishi arrowheads, first of all, the shape of two arrowheads is cut from miscellaneous wood, and since no one else has ever seen the real thing, Yang Wenli himself cut it with a knife.

The wooden fan is made, after careful polishing, you can use the clay to make the fan, and after the pottery fan is dry, it will be put on the fire to burn, so that a simple mold will be successfully made.

The next step is to melt the iron into steel for casting. Yes, arrows are reusable parts and must be steel, iron is brittle and not suitable for arrows.

There were only eleven people in total, and the amount of arrows used was not large, with an average of sixty arrows per person, only about six or seven hundred.

Among them, fifty light arrows, ten heavy arrows, the light arrows weigh about one tael, and the heavy arrows weigh about three taels, and a total of about 100 catties of iron are needed, because there is also a loss of molten iron for steel.

Iron was a controlled product in ancient times, and it was difficult to buy, but fortunately, Yang Wenli did not use much of it, so you could buy some farm tools to make do with it.

Most people think that steelmaking must use an open hearth, but in fact, there is a method of frying steel in ancient times, and it is also possible to obtain steel with relatively high purity.

…… To be continued