"Uncle Wu, if there is a bow that shoots farther, has more destructive power, and is easier to pull, what do you think?" Mo Mo asked, seeing how he answered.

In China, he can't buy guns and bullets, the space is too small, and he can't transport them to the other world, if he buys a pocket pistol like the M1906, he can transport, but the killing range is only more than ten meters, the accuracy is still poor, and the bullet weighs only a few grams.

If it is a general-caliber gun, it is uncertain whether it can kill the prey, and 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 there is a powerful anti-materiel weapon, it can directly shoot the pig's head, and Mo Mo doesn't have to bother making a bow.

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

Speaking of which, the most important thing is that there is no way to guarantee the logistics supply of bullets, unless there is a manufacturing industrial base in the Atlas.

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

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

There are three major factors in the bow and arrow, namely accuracy, range, and penetration.

The biggest feature of the compound bow is that the pulley is used to achieve the effect of labor-saving, the accuracy is higher, and the structure of the bow body is larger, and the shooting is farther.

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

If it is used in hunting in the other world, you have to thicken the body of the compound bow, and the shooting accuracy will be poor.

It doesn't matter if the accuracy is poor, the beast is not always stationary, and there are environmental interferences, and only those who are skilled in archery can shoot the weak points of the beasts. Ordinary people hunt archery, which is similar to brute shooting, not to mention that they can't see objects tens of meters away.

Therefore, the caracal does not have to be too harsh on the accuracy of shooting, and it is more important to strive for the penetration of the bow and arrow. After all, no matter how good the head is, it is extremely difficult to shoot the beast's eye, and the penetration of the bow and arrow should be strengthened as much as possible under the requirements of basic accuracy, so as to have lethal power against the beast.

Mo Mo was worried that it was not easy to make a compound bow in the Otherworld.

"Uncle Wu, can you make this kind of appearance?"

"There is no problem with wood and carpentry, you can find the wood of the bow body at will, and the bowstring can also be taken from the tendon of the beast, and then mixed with hemp rope, but this steel part is difficult to build, and the strength is not enough to estimate. Shi Wu thought about it for a while, and explained little by little, he still couldn't figure out the principle of the structure of the compound bow, even if Mo Mo explained it in detail.

"In this case, I will provide the bowstring and steel parts, and I will give you the drawings of the composite bow in a while, and then Uncle Wu, you will ask the carpenter to make a model first, and we will pay the carpenter's salary. Mo Mo knew that the scale unit of the Otherworld was too large, and there was no measurement standard.

If you want to mass production, you need to consider interchangeability (i.e., universality, standards, such as standard bolts have to match the corresponding nuts), and you must provide a measurement standard.

Otherworldly steel, according to folk sayings, is roughly divided into two types.

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

The other is lump iron (wrought iron), which has low carbon content and is not strong enough although it has good plasticity.

For all these reasons, the steel of the Atlas is not suitable for making composite bow parts.

In addition, the parts of the composite bow have a complex structure, which cannot be created manually, and it is difficult to cast. Mo Mo directly gave up the idea of creating composite bow steel parts in the other world.

There are many forests in the Tianling Continent, the wood is abundant, and the material is better than that of the earth, and many houses in Qingyuan Village are wooden houses made of carpentry, and most of the villagers know how to carpenter and make some furniture. These are the advantages of Qingyuan Village.

Mo Mo just wanted to use the advantages of the other world to reduce the workload of making compound bows.

"Uncle Wu, why don't you call a few skilled carpenters over, and I will explain to them the process of making compound bows. Mo Mo looked at Shi Wu's brows slightly locked, worried, probably didn't understand what he meant.

In his previous life, as a mechanical engineer, he understood that oral narration could be misleading.

Engineers deal with technical problems, should be the solution of the document issued to the worker, and finally let the worker sign for the bottom, not just verbal relay, otherwise the product has a problem, the worker really put the responsibility on the engineer, the old denial said "I just do what the technician said", the engineer can only carry the black pot.

If there is a signed document to prove it, the workers will not dare to rely on it.

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

When Mo Mo returned home, it was late at night, and his sister was sleeping soundly.

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

In fact, the best drawing is a CAD floor plan, but unfortunately those people from other worlds can't understand this kind of drawing. He also drew a table of numbers and otherworldly scripts, otherwise the carpenter would not have understood what the Arabic numerals meant.

Mo Mo found tools in the house that he could use, such as steel rulers, cloth rulers, triangle plates, compasses, rulers, etc., and he brought them to the other world.

Mo Mo returned to the other world, and Shi Wu went out to find someone and didn't come back yet.

Mo Mo thought about it, dug a few clumps of clay not far from the door, and made a rough model according to the diagram of the composite bow.

Half an hour later, Shi Wu returned with several carpenters.

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

Mo Mo politely paused for a moment, then took out drawings and a bunch of tools, pointed to a clay part that had just been made, and asked, "Uncles, can you do this?"

A few carpenters were amazed when they saw the delicate picture, and they were even more shocked by the structure on the picture, and the praise continued.

They love the tools on the table.

Mo Mo explained to the carpenters how to use new tools and how to read drawings.

Mo Mo explained for two hours, his mouth was dry, but fortunately there was a clay model to compare, and the carpenters understood how to use these novel tools, and they were even more excited about the new dimensional measurement specification.

In fact, if you can make a wooden model first, and then imitate it in 1:1 size.

But if you make a new product, 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 teaches them to use the new tools, and they will be able to read and make pictures in the future.

"Little brother, you are so smart, with these accurate measurement tools, the same diagram, even if it is something made by several people, the error will not be too big. Fifty-year-old Wang Jianshu praised.

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

The Atlas mainly makes bows, bow handles, bow blades, chords, balance bars, arrow stands and other components, which can be made of hardwood. The Otherworldly Forest is full of hundred-year-old hardwoods, and the material is flexible, and if you change to Earth, you really can't find a tree suitable for making composite bow parts.

The bowstring and D-ring can be made of animal tendons, but Mo Mo purchases them directly from the earth, and the bowstring material of the earth is made of composite strings.

The most difficult part to make is the bow piece, which requires elasticity, but compared with the traditional bow, it is much simpler, after all, the traditional bow requires the elasticity of the entire bow body, and the wood needs to be placed in a ventilated and cool place for more than 1 year, and its humidity reaches about 10% to be qualified. The bow of the compound bow, because it is a section, the requirements are not so harsh, or it can be made of steel with good elasticity, which is more powerful.

The eccentric wheels, axle sets, bow shock absorbers (springs) and spreaders of the composite bow were not made by the carpenters, and Mo Mo planned to purchase them on Earth.

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

Of course, it's one thing to say, but it's not necessarily that simple to do.

After discussion, everyone decided to make a few sets of models to familiarize themselves with the drawings, and not consider the practicality first, if there is no problem with the model, then carry out the actual production.

After discussing, the carpenters went back to prepare the tools, and Mo Mo also prepared to return to Earth to purchase some more tools.

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