Assembly line operation, a very common manufacturing production method in later generations, has an excellent way to improve production speed, reduce the time of workers to get started, and can also keep the manufacturing process confidential.

In fact, in later generations, assembly line operations have not only been limited to factory production, but also integrated into the entire social system. In short, division of labor and cooperation.

But in this era, there is obviously no such concept, just like Professor An Gong and Professor Zhao Gong make rhubarb crossbows now, and what they teach is the manufacturing skills of the whole set of rhubarb crossbows. As long as you learn it, you can make a rhubarb crossbow on your own. But obviously, this is not what Li Yi needs.

So Li Yi unceremoniously moved the assembly line operation out, and at the same time once again enjoyed the shocked eyes of everyone.

"Lord, lord, I always feel that sometimes, your thoughts are really ......" Guo Jiaba smacked his mouth twice, and finally couldn't find any suitable adjectives.

"Hehe, in fact, these things are not complicated, but some inherent thinking restricts people. It's like the art of war proposed by Sun Wu in the past, isn't there anyone in the world who will? Apparently it is also impossible. Li Yi chuckled when he heard this.

In fact, even in later generations, people are still limited by various inherent thinking, but because of the development of the Internet and technology, the scope of this restriction is relatively large.

"It's just that if you follow this method of the prince, although you can speed up the production of the rhubarb crossbow, the manufacturing skills are ......," An Gong said with a frown.

"Hehe, it's not that you won't be allowed to pass on your skills, if there is a talented person, you can still teach him." Li Yi said with a smile when he heard this. Naturally, it is impossible for him to do the stupid thing of losing a watermelon and picking up sesame seeds, if this skill is really not completely learned by one person, then even if all the production skills are passed down separately, sooner or later they will disappear with the passage of time.

Hearing Li Yi's words, Duke An and Duke Zhao breathed a sigh of relief, they were really worried that Li Yi only wanted speed and ignored the inheritance. If this is the case, they will not have the strength to resist, but they will also be very unwilling, after all, no one with skills can bear to let what they have learned be completely lost.

"Then it's decided, Gong An and Gong Zhao, the two of you will divide the skills of making the big yellow crossbow, and the finer the divide, the better. In addition, Fengxiao, you send people to recruit some people, don't be able to endure hardships. Li Yi said with a chuckle.

Once the skill becomes an assembly line operation, many places actually no longer need any talent, which is the benefit of assembly line operation.

"No." Guo Jia responded when he heard this, and then looked at Li Yi and proposed, "Lord, my subordinates feel that other things such as weapons and armor also seem to be ......."

"Well, you can do it." Li Yi nodded, and at the same time thought comfortably in his heart, "Sure enough, it is easy to have a smart person as a deputy~" Li Yi is now more and more looking forward to the scene when Xu Shu, Shi Tao and others have grown up completely.

Just as Li Yi and Guo Jia were about to leave, Li Yi suddenly thought of something, "Duke An, Duke Zhao, do you two have any research on siege equipment?" ”

"Back to the prince, the two of us once participated in the manufacture of catapults and other equipment." An Gong and Zhao Gong responded when they heard this. In fact, they were originally craftsmen subordinate to the imperial court in Hedong County, whether it was a rhubarb crossbow or a catapult, almost all of them were made by them with a group of people.

"Oh? Can this thing be made? Li Yiyan's eyes lit up when he heard this, and he took a branch and drew it.

"This is ......" An Gong and Zhao Gong looked at the picture on the ground strangely, they vaguely saw what it was, but they didn't understand it.

"It's a building car, well, that's the name. The outside was wrapped in cowhide and other defensive arrows, and the inside was covered with several floors, from which the soldiers could climb from below. In addition, there are wheels underneath to push, and a platform above to allow the soldiers to stand on top. Li Yi pointed to the picture and explained. In addition, one side of the fence can be lowered so that the soldiers can rush directly to the wall......"

"This ......" Gong An and Gong Zhao looked at the pattern on the ground strangely, and only looked at Li Yi for a long time before saying, "Junhou, technically speaking, this device called Louche is not too difficult, it is nothing more than a multi-storey platform with wheels. But if you want to make it, it also takes a lot of work, especially on the battlefield......"

"I know, so I want this thing to be able to disassemble!" Li Yi looked at An Gong and Zhao Gongying, and then said some of his thoughts.

"Hmm...... Seem...... Prince, the two of us have to study it to determine if we can make it. An Gong and Zhao Gong replied respectfully.

"Well, there's no hurry." Li Yi chuckled, he naturally knew that this kind of thing couldn't be remembered, after all, this kind of large-scale siege equipment could be disassembled, and it must go through many tests before it could be manufactured.

As the days passed, Li Yi also temporarily relaxed, staying by Cai Yan and Cai Qing's side every day, waiting for the birth of his children. At the same time, he finally has time to accompany his eldest son Li Xin.

On the martial arts training field, Li Yi lazily leaned on Xiaobai's body, and his half-squinted eyes kept wandering around Li Xin and Lu Wen's bodies.

At this time, Li Xin, who was already five years old, was constantly practicing martial arts, which Li Yi had improved based on what he had learned and the training methods he had learned from Li Yan and Tong Yuan. After all, he is his eldest son, and Li Yi doesn't dare to be sloppy at all.

And the result also made Li Yi very satisfied, although he didn't have much time to accompany Li Xin, but what he showed at this time was enough to prove that he was not lazy because Li Yi did not supervise him.

However, Li Xin made Li Yi very satisfied, but Lu Wen on the side gave Li Yi a headache. Lu Wen, who is thirteen years old, is already more beautiful. But the heroic face and extremely sharp and firm eyes are enough to make most men ignore her beauty.

"Alas, this girl ......" Li Yi rubbed his forehead, and suddenly remembered Lu Bu's previous request to him, hoping to persuade Lu Wen to learn what those daughters' families should learn. Thinking about it, a girl of this age, especially a beautiful embryo like Lu Wen, it stands to reason that someone should have come forward to say that the matchmaker would have married, not to mention that Lu Bu is still the number one general under Li Yi.

But not half of the people do this, why? It's very simple, Lu Wen can't look down on it!

"The man I, Lu Wen, am going to marry, must not be weaker than me!" In a word, all those who have ideas are directly dispelled.