Otaku Engineer in Great Tang Dynasty

Li Residence, West Courtyard.

Li Zexuan rolled up the drawings and handed them to Yan Shaoning, saying: "Shaoning brother, I understand your drawing method, but I still think that my method is more concise and clear."

"Oh? That Little Xuan, let me tell Elder Brother, you have a sect for this drawing method."

Yan Shaoning See Li Zexuan is very confident in his drawing method and can't help but wonder how amazing this method is.

"The younger brother draws a three-view of the component and an isometric Axonometric Drawing. The so-called three-view is to draw the outline of the object from the front, side and top of the object, such as this stone, Shaoning brother, you Look at the front..."

Li Zexuan took a stone for reference and explained the three-view drawing method to Yan Shaoning. After a while, he packaged the part that the professional Teacher said to himself to Yan Shaoning.

"...Shaoning brother, you see, with these three views, the craftsman can form a model of the part to be made in his mind at a glance, and it is easier to dimension the three views."

After listening to Li Zexuan's explanation, Yan Shaoning stood up, squatting, meditating for a moment, suddenly yelled: "Miao, wonderful, this drawing method is really wonderful, Little Xuan, you are a genius, you draw like this It does seem clearer and there are fewer unnecessary annotations."

Yan Shaoning sat down again, rubbed his hand and stared at Li Zexuan. "I must tell this drawing method to me, let him promote this method. Little Xuan, would you like to go to prison?" If I know your talents, I would definitely like to ask you for an official position in front of Your Majesty."

Li Zexuan shook his head and said: "many thanks Shaoning, brother, kindly, the younger brother had been away from home for many years, just came back a few days ago, and now he does not want to be an official."

It will be almost equivalent to the Chinese Academy of Sciences in the past, so that Li Zexuan is there to study hard every day, and he is not willing. Moreover, he has had quite a lot of things in his own life recently. The Court of Wonders is about to open, and it will take two days to start.

When he heard Li Zexuan refuse, Yan Shaoning sighed: "Hey, that's a pity."

Turning his eyes to the drawing, Yan Shaoning wondered: "Little Xuan, then this isometric Axonometric Drawing is doing and so on?"

"This view is mainly to help the craftsman to form a three-dimensional model of the object in the mind, because some structures with particularly complicated structures, it is difficult to imagine its three-dimensional model with only three views."

Yan Shaoning thoughtfully nodded.

At this time, Li Zexuan is meaningful with a smile: "Shaoning brother, you just noticed this drawing method, but you ignored the picture itself."

"Oh? Is there any foundation principle in it? Don't say it, let me see."

Yan Shaoning re-examined the drawing in accordance with the three-view Theory that Li Zexuan had just explained to him. After reading it, Yan Shaoning stood up, closed his eyes, and fantasized about the things in his mind.

After a while, Yan Shaoning eyes opened, excited: "I understand what this is, Little Xuan, what are you going to do with this thing?" Although he can imagine the three-dimensional model of this thing, but still think about it. Out of use.

Li Zexuan said with a smile : "I named this thing Ball Bearing, Brother Shaoning, what do you think if you use this on the drive connection between the wheel and the wheel axle?"

Yan Shaoning himself studied mechanical design. Listening to Li Zexuan, he immediately understood that he was more excited than before.

"Too amazing, this is a genius design. With this Ball Bearing, all the cars in the future will be minimally resistant to Carriage or trucks. Little Xuan How did you come up with this? Invention is really great."

Li Chengqian didn't understand the mechanics. He hadn't heard anything before. Seeing that Yan Shaoning was blowing this thing to the sky, he couldn't help but wonder: "Shaoning, is this really so good?"

Yan Shaoning was very excited at the moment, heard Crown Prince ask questions, and did not want to affirmed:

"Of course, this thing is called the most useful invention of my Great Tang. It's not too much for Crown Prince. If all of my Great Tang cars are driven by this Ball Bearing, then the same horse can At least one more car with more than 50% load.

At that time, the merchant can transport more goods at a time. When the snoring, a grain truck can load more grain, and in addition to the car, other machinery that needs to be driven, and some can also use this Ball Bearing, Your Highness It is not important to say that this invention is important. ”

Hearing Yan Shaoning's analysis, Li Chengqian was also shocked. He couldn't care if the merchant could transport more cargo. But this can improve the efficiency of the battle grain. It is really too important. In this era, the decisive factor of war victory and defeat. One is still the problem of food and grass.

Li Chengqian realized that Yan Shaoning's previous praise was not excessive, and he was a little excited now.

"Brother Zexuan, this matter is of great importance. I wonder if I can let the lonely belt go back to the palace?"

Li Chengqian also knows that Li Tai is currently competing with him, but he has no other good way. He can't be like Li Tai in front of Li Er Zhangsun. If he dares to do this, he will definitely be accused by Li Er from saying that he does not have the prestige of a country.

There are things that Li Tai can do, but he can't do it because he is Crown Prince. Seeing that Li Er is more and more fond of Li Tai, Li Chengqian is also anxious, but he can only be anxious.

At this time, see Li Zexuan invention, this thing is so useful, and even used for military purposes. Li Chengqian first thought that perhaps he could rely on this thing to let Li Er appreciate him, and by the way, he could also ask for Li Zexuan. benefit.

Li Zexuan is helpless at the moment. Although the use of Ball Bearing is indeed very extensive, these two people are not so excited? Listening to Li Chengqian means to present this drawing to Li Er immediately, Li Zexuan quickly said:

"His Highness, this Ball Bearing is really useful, but I don't know if I can make it. Now I will present the drawings to Your Majesty, I am afraid I am too hasty."

Li Chengqian heard it, and it makes sense. Secretly thought is still too rash.

“Brother Zexuan is very speaking, then wait for you and Shaoning to make this thing and install it in the car, then report it to Father Emperor, and then ask for the second person.”

When Yan Shaoning just heard Li Zexuan's words, he began to frown and meditation. Just now he was a little too excited. He never thought about whether this thing could be made. He thought for a while and hesitated:

"Little Xuan, this Ball Bearing is afraid that it is very difficult to make it out."

When Li Zexuan proposed this Ball Bearing before, he didn't know whether it could be made with the craft of the Tang Dynasty. Although he was psychologically prepared, but now he heard the negative answer from Yan Shaoning, there is still a little disappointment in his heart, but he Also want to know where the technical difficulties are, ask:

"Shaoning brother, I don't know where there will be difficulties?"

……