After spending money far away, Upper East Communications Construction Group really lived up to the trust, and in less than a month, it completed the construction task ahead of schedule, built the main building in the factory, and made the entire factory of Arrow Automobile look new.

Now Arrow Automobile Company, the number of factories has changed from the original three to six, and the space of a single factory is much larger than the original factory space, using the best seismic materials at present.

For example, the largest No. 6 factory is the size of a football field, which can be used as a stadium, but for future renovation, the No. 6 workshop the size of a football field is not equipped with a roof, but only a fence and a flat ground, but at present, in order to prevent rain and wind, it is covered with a thick plastic film.

In fact, this Upper East Construction Group, although it is the best qualified construction company in Upper East City, can only do ordinary factory buildings, level the ground, dig a few underground parking lots, and build a few garden ponds and other landscape buildings by the way. Surely you can't ask the general engineering team to do it.

In fact, after the construction of these main buildings, Cheng Yuan asked people to use their own super carbon fiber cloth and graphene film to reinforce these buildings, including the ground in the factory, which is also paved with a new type of graphene as the main body of ultra-hard and non-slip nanocomposite film, these materials alone, to sell it is absolutely staggering, but outsiders don't know the preciousness of these things, just think that they are ordinary reinforcement materials and floor leather.

The No. 1 factory has been transformed into a learning simulation workshop, which has a lot of simulation equipment, in which employees can learn how to indulge in various highly intelligent machines in the factory, as well as learn how to repair and maintain the different products produced in the factory in the later stage.

As for the No. 2 factory, it is the main production plant at present, and it is also the factory that can be announced to the public in the future and let people visit it casually, because the car production lines that Cheng Yuan asked Vivian to help him buy abroad are all placed in the No. 2 factory, so the equipment in this factory is innocent and can definitely stand the visit and test of others.

Of course, although Koenigsegg is a well-known supercar company in Europe, it is not so difficult to buy an advanced production line, but after all, it is someone else's production line that is being purchased, and it is certainly impossible for others to give you the most advanced technology.

The so-called advanced production line mostly refers to those production lines with a high degree of automation and advanced equipment. These production lines have a high production capacity and a high degree of automation, and there are few cases where human workers are required, which can greatly reduce the capital investment of hired personnel.

However, the advanced production line is not a universal production line, will not change things out of thin air, in today's era, the production line is simply an advanced assembly line, no matter how advanced it is, it is more delicate and more efficient, and other components of the car, such as engines, transmissions, tires, reversing radars, etc., you have to buy someone else's, and then the production line is responsible for assembling these things for you as soon as possible.

The uniqueness of the automobile production line is that it can produce some automobile chassis and general frame, which is also the most fundamental form of a car.

Therefore, how is a production line set when it leaves the factory, then this production line can only produce a few kinds of cars, mainly because of the limitations of automobile chassis, such as the production line of trucks generally cannot produce cars.

The three sets of production lines that Koenigsegg bought, each can produce three kinds of automobile chassis, namely the bus production line, the family car production line, and the small truck production line, which is already a relatively complete production line in automobile production, such as the production line of small trucks, in fact, it can produce small trucks, pickup trucks and SUVs, and the family car production line can also produce vans, RVs, sedans and so on.

Among them, this production line that was introduced into Arrow Automobile is a production line for the production of a large bus, the chassis has basically been finalized, and can only produce large cars, and because the automation is very high, the whole process is almost controlled by robots, so it is very difficult to change the production process, especially to change the process of producing automobile chassis, which is very difficult, which is equivalent to changing a whole production line.

Therefore, don't look at so many cars on the street, they look like they are constantly innovating and making new models, but many of them are small changes, such as changing the lights and changing the front face, the buttocks, etc., but the chassis is mostly the same, this is because their production line has not changed, and as long as the production line remains the same, they can only change the appearance and other small places, and the core chassis process inside cannot be changed, that is, the skeleton cannot be changed.

In short, the production line in the No. 2 factory can only produce the chassis of large buses, and can produce large buses, and it is only an assembly line, and spare parts have to be purchased separately, but this is not bad, at least it can hide people's eyes and ears, and let people come to visit.

Factory No. 4 is a material factory, mainly producing nanomaterials such as carbon fiber and graphene, but these products are more reserved, only for their own use, not for export, such as the materials used to reinforce the factory and pave the floor, are all produced in this No. 4 factory, which is a confidential factory.

As for factories No. 5 and No. 6, they are all reserved factories for the purpose of increasing production capacity and increasing product varieties in the future, so they do not have any production equipment.

Therefore, the current focus of Arrow Automobile is the No. 3 factory, because here, there is something that can be produced that does not belong to the current level of technology on the earth, that is, the Louis VI 3D printer.

Louis VI 3D printer, as the name suggests, is the sixth 3D printer produced by Louis, and it is also a printer that makes Cheng Yuan more satisfied for the time being.

The working principle of this 3D printer is to heat the input materials into a liquid state with ultra-high temperature, and then print out the prototype of the object in a vacuum environment according to a certain program by spraying and other means, and then after a series of cooling processes, a complete finished product is formed.

At present, the main input material of this Lewis VI 3D printer is graphite powder, and then it will produce liquid fullerene or graphene through a series of reactions, and then directly put liquid or semi-liquid fullerene or graphene through 3D printing technology to make the finished product you want, just like kneading plasticine, or making jelly.

The reason why we can only print things with fullerene and graphene is because Louis is familiar with the technology of producing fullerene and graphene, so he will make familiar things first, and when this 3D printing technology is mature, he can also experiment with printing other nanomaterials.

For example, now, Cheng Yuan asked Xiaolan to connect with the No. 6 3D printer to print the main frame of a car, and the main frame of this car is the shape of a concept car specially designed by Cheng Yuan by a French car designer, but no prototype has been produced so far.

Let Xiaolan produce, just to verify Xiaolan's compatibility and processing power with this 3D printer, and to see if Xiaolan, the intelligent program he created, is really as he wishes, with a powerful machine-sensitive surname.

Sure enough, after Xiaolan connected to the control system of the Louis 6 3D printer, she quickly became familiar with the way the 3D printer worked, and then, under Cheng Yuan's explanation and encouragement, she used the camera to watch a variety of car drawings rolled out by Cheng Yuan, and retouched them herself, and finally printed them perfectly.

Ten minutes later, Cheng Yuan finally smiled with relief when he looked at the translucent, seemingly transparent plastic, streamlined appearance, slightly different from the design drawings and the car being printed.

You must know that this car printed by 3D printing equipment was not Cheng Yuan who input the production program to Xiaolan, but let Xiaolan observe the car design drawings in his hand with a camera, and listened to his own explanation, and then pondered and made it by himself, just like a child learning to draw, she already has her own thoughts in it, not born with it, nor is it a complete copy like photography.

To put it simply, this car is the first handmade product made by Xiaolan according to her own understanding after her birth, and it is also of special significance, and the entire manufacturing process is also her first handicraft class.

After the car was made, Xiaolan seemed to be a little unconfident, so her voice was a little weak: "Dad? Is Xiaolan doing okay? Is there anything you can't do well? It seems to be slightly different from a drawing, but, however, I ...... I always thought it would be better, so I did it. ”

"No, you're doing a great job! In fact, the design I gave you is not a finished product, just a primary design, you can find the flaws so quickly and modify them, it shows that you are very good at thinking. Cheng Yuan smiled and shook his head at the camera, "Your learning and comprehension skills have exceeded my expectations, which is very good, and you will continue to work hard in the future!" ”

"Yay! Great, Daddy praised me, Daddy praised me! Hearing Cheng Yuan's words, the Q version of the little girl on the computer screen immediately began to jump in place, "Dad, Xiaolan will definitely continue to work hard in the future and be a good boy of Dad!" ”

"Hmm." Cheng Yuan smiled and nodded at the camera, "I believe that Xiaolan will definitely be a capable, obedient and smart boy in the future." ”