Rebirth of Business Domination of the Two Worlds

Chapter 47 Compound Bows

"Uncle Wu, if there is a bow that shoots farther, is more destructive, and is easier to draw, what do you think?" Mo Mo asked to see how he would answer.

In China, he can’t buy bullets, the space is too small, and he can’t transport them to another world if he buys them. If he buys a pocket pistol like the M1906, he can transport it, but the killing range is only more than ten meters, the accuracy is not good, and the bullets are only a few. The weight in grams, not to mention hunting wild animals, would be difficult to kill powerful aliens, unless it was shot at close range and hit the head of a human.

If it is an ordinary caliber gun, it may not be able to kill the prey. It is difficult to kill a wild boar with a machine gun on the earth, and it is not as practical as a compound bow with strong penetrating power.

Of course, if you have a powerful anti-material weapon, you can directly shoot the pig's head, and Mo Mo doesn't have to bother to make a bow.

On the other hand, the bullets needed for training, his little space, is not cost-effective to transport the bullets.

After all, the most important thing is that the logistics supply of bullets cannot be guaranteed unless there is a manufacturing industry base in another world.

Shi Wu said in surprise, "Is there really such a bow?"

"Uncle Wu, what do you think of this structure?" Mo Mo drew the shape of the composite bow on the slate according to the system's prompts, and analyzed the characteristics of this bow and the difficulties in making it.

The three major factors of bow and arrow are accuracy, range and penetration.

The biggest feature of the compound bow is the use of pulleys to achieve labor-saving effects, with higher precision. From the structure of the bow body, the energy storage is greater, and the shot can be farther.

However, compound bows also have disadvantages. The rate of fire is slow, which is not conducive to combat, and the requirements for arrow shaft materials are higher.However, it is more suitable for hunting animals and individual combat.

If it is used for hunting in other worlds, the bow body of the compound bow must be thickened and enlarged, and the shooting accuracy will be worse.

It doesn't matter if the accuracy is poor. The beasts are not always in a static state, and there are environmental interferences. Only people with superb archery skills can shoot at the weak spots of beasts.The average person's hunting and archery is similar to wild shooting, not to mention that they can't see objects tens of meters away.

Therefore, hunting does not need to be too strict on shooting accuracy, and it is more important to strive for the penetration of bows and arrows.After all, no matter how good the aim is, it is extremely difficult to hit the animal's eye. Under the requirement of ensuring the basic accuracy, the penetrating power of the bow and arrow should be strengthened as much as possible, so as to be lethal to the beast.

What Mo Mo was worried about was that it was not easy to make compound bows in another world.

"Uncle Wu, can this look be done?"

"There is no problem with wood and carpentry. You can find bow wood anywhere. The bow string can also be made from animal tendons, and then mixed with hemp rope. It's just that this steel part is difficult to make, and it may not be strong enough to make it." Shi Wu thought for a while, and explained bit by bit, the structure of the compound bow, he still couldn't figure out the principle, even though Mo Mo explained it in detail.

"Well, I will provide the bowstring and steel parts. I will give you the blueprint of the composite bow in a while, and then Uncle Wu, you can ask the carpenter to make a model first, and we will pay the carpenter's wages." Mo Mo knew that the scale of the foreign world The unit is too large, and there is no standard of measurement.

If you want to mass-produce, you must consider interchangeability (that is, universality, standards, such as standard bolts must match the corresponding nuts), and you must provide measurement standards.

According to folklore, steel from other worlds can be roughly divided into two types.

One is high carbon steel, the carbon content is too high, so the plasticity is poor and it is easy to crack.

The other is block iron (wrought iron), which has low carbon content. Although it has good plasticity, its strength is not enough.

To sum up the above reasons, steel materials from other worlds are not suitable for making components of compound bows.

In addition, the components of the compound bow are complex in structure, cannot be made manually, and are difficult to cast.Mo Mo directly gave up the idea of ​​building steel parts for compound bows in another world.

There are many forests in Tianling Continent, rich in wood, and the materials are better than those on the earth. Many houses in Qingyuan Village are wooden houses made by carpenters. Most of the villagers are good at carpentry and make some furniture.These are the advantages of Qingyuan Village.

Mo Mo just wanted to take advantage of the advantages of other worlds to reduce the workload of making compound bows.

"Uncle Wu, why don't you call some skilled carpenters over, and I'll explain to them the making process of compound bows." Mo Mo looked at Shi Wu with his brows slightly furrowed, worried, probably not understanding what he meant.

In his previous life, as a mechanical engineer, he knew better that oral narration could easily lead to misleading.

When an engineer deals with a technical problem, he should issue the solution document to the worker, and finally let the worker sign it as a record, not just verbally report it. Otherwise, if there is a problem with the product, the worker will really shift the responsibility to the engineer. Just do what the technicians say", engineers can only take the blame.

If there is a signed document to prove it, the workers dare not be foolish.

Shi Wu thought for a while, and said: "That's fine, I'm also afraid of conveying your meaning, and there will be misunderstandings in the end." After speaking, he went out to find someone.

When Mo Mo came home, it happened to be late at night, and her sister was sound asleep.

Mo Mo downloaded several pictures of the parts of the composite hunting bow, then printed them in black and white, and marked the size himself.

In fact, the best drawing is the CAD floor plan, but it is a pity that people from other worlds cannot understand this kind of drawing.He also came up with a comparison table of numbers and characters from other worlds, otherwise the carpenter would not be able to understand the meaning of Arabic numbers.

Mo Mo looked for useful tools in the house, such as steel rulers, cloth rulers, set squares, compasses, rulers, etc. He brought everything he could bring to another world.

Mo Mo returned to the other world again, and Shi Wu went out to find someone but hadn't returned yet.

Mo Mo thought for a while, dug a few balls of clay not far from the door, and made a rough model according to the drawing of the compound bow.

Half an hour later, Shi Wu came back with several carpenters.

"Little Mo, this is Uncle Wang and Uncle Lin. They are the best carpenters in the village. They have decades of experience in carpentry." Shi Wu brought several middle-aged and elderly people to his house and introduced them to Mo Mo. , and also introduced to these carpenters what to do.

Momoke made some excuses, then took out the drawings and a bunch of tools, pointed to a clay part that had just been made, and asked, "Everyone, can these be done?"

Several carpenters were surprised when they saw the exquisite picture, and were even more shocked by the structure on the picture, and there were constant praises.

They love the tools on the table even more.

Mo Mo explained to carpenters how to use new tools and how to read pictures.

Mo Mo explained for a full two hours, his mouth was dry, but thanks to the clay model for comparison, these carpenters understood how to use these novel tools, and they were even more excited about the new size measurement standard.

In fact, if you can make a wooden model first, and then imitate it according to the 1:1 size, it will be fine.

But if you want to make a new product, if the size changes, you have to wait for the model. The efficiency is too slow, and the production error is also large. Mo Mo simply taught them to use new tools, so that they can learn to make pictures in the future.

"Little brother, you are so smart. With these precise measurement tools, the same picture, even if it is made by a few people, the error will not be too big." Wang Jianshu, who is in his fifties, praised.

Next, several old men discussed with Mo Mo how to make a simple compound bow.

Alien mainly makes bow body, bow handle, bow limbs, chord, balance bar, arrow rest and other components, all of which can be made of hardwood.The alien forest is full of hardwoods that are hundreds of years old, and the material has good elasticity. If it were the earth, it would be hard to find any suitable trees for compound bow parts.

Bow strings and D rings can be made of animal tendons, but Momo directly purchases them from the earth, like the bow strings on earth are made of composite material strings.

The most difficult part to make is the bow piece, which requires elasticity, but it is much simpler than the traditional bow. After all, the traditional bow requires the elasticity of the entire bow body. The wood needs to be placed in a ventilated and cool place for more than one year. Its humidity reaches about 1% to be qualified.As for the limbs of a compound bow, since it is one piece, the requirements are not so harsh, or it can be made of steel with good elasticity, which is more powerful.

The eccentric wheel, axle group, bow limb shock absorber (spring) and release device of the compound bow cannot be made by carpenters, so Mo Mo plans to purchase them on the earth.

In this way, the parts of the simple compound bow are complete.

Of course, saying it is one thing, but doing it may not be that simple.

After discussion, everyone decided to make a few sets of models first to familiarize themselves with the drawings, without considering the practicality, and only proceed with the actual production if there is no problem with the models.

After the discussion, the carpenters went back to prepare tools, and Mo Mo also prepared to go back to Earth and buy some more tools.

In the "workshop" for making compound bows, Shi Wu found an empty house in the village and asked someone to tidy it up for temporary use.

(End of this chapter)