Shang Wen punched a cross on the two big words "wood". It seems that it is obviously not possible to use wood as a hydraulic press. Although it is possible to press the iron plate to a certain thickness to a certain extent. But this thickness still does not work out.

"Mr. Qin, do you think this is okay? I widen and enlarge the die which I poured of the iron. Weight reduction. It may be possible to press it into a certain shape. Chen Da said.

"This." Shang Wen pondered.

"Mr. Qin, I think this method will work. In this way, we are asking for less weight. It should work. One craftsman thought at once.

Shang Wen was calculating this formula at this time, and he saw that everyone was so positive. Then leave it to them to try it themselves, won't you?

"Well, you can try this method, but I have a suggestion. According to the current use of wood, it cannot meet our needs. So, my suggestion is that those hydraulic cylinders are still made of iron. Shang Wen made one of his own suggestions. The use of wood is obvious. Pressure, the pressure that is under is certainly not withstanding. Then there's the tightness. Although the carpenter is very skillful in making it. But after all, the sealing is poor, at best. This wood is kind of an experiment. It's not a machine.

"However, I see that people are so interested. You can do your own research. I'll write about the principle of the hydraulic press later. I'm going to go there and get some work on the air hammer and the adjustment of the drum machine. Come on, everyone. Shang Wen finally realized that what he said was too much, so he hurriedly ran away.

The craftsmen involved in making the hydraulic press simply ignored what Shang Wen said. Rather, it is to renegotiate the production of this hydraulic press. It was the first time they had seen such a machine. You can press an entire piece of iron to that extent. And the manpower and time used are also very small. This is rare. I think it's valuable. So, the craftsmen began to sit down and discuss in detail.

Shang Wenke didn't have that much effort. It's a big engineering system on my own. If you rely on just one person, you don't want to bring the Qin State into a huge industrial age in this life. Unless, by these people. These people are just busy with production and rarely have the opportunity to try. Now give them a chance yourself. Also, show them the schematic drawings. If you don't understand, explain it a little. Let them do the rest themselves. If you do everything yourself. I have to die of exhaustion.

Thinking of this, Shang Wen walked to the other side of the machine. Stand aside and explain to a craftsman, connecting the drive rod of the steam engine to that part. The drum relies on the continuous rotation of the drive rod. How to get the finished stuff and so on. The craftsman nodded as if he understood. Shang Wen didn't care about it. Hurry up and leave. Draw some of the designs into a brochure for the craftsmen to see.

"Mr. Qin, Mr. Qin." Chen walked over with a couple of sticks in his hand.

"Mr. Qin, this is the pencil you said, I made it for you." As he spoke, he took the wooden stick in his hand to Shang Wen.

Shang Wen took the wooden stick in Chen's hand and looked at it carefully. So thick. It's almost the same caliber as the bullet I made. Moreover, the refill is thick. It's also much longer than a regular pencil. But come to think of it, this guy probably hasn't seen it either. Never mind. Or don't be so strict. Being able to make this thing is much better than drawing with a brush every day. Besides, it's so thick that you can almost carry it around.

"Yes, it's not bad." Shang Wen praised.

"However, it's still a bit big, and you'll see if you can discuss it with the carpenters. Just make it as thin as a brush and so long. Shang Wen said as he held a crude pencil.

"This, no problem. From the beginning, I thought about it. But it's harder to make, so that's it. But then this thing, yes, pencil. It must be able to be made that fine. Chen Yong said.

"Okay, I'll use it first. You're going to get busy, and I'm going to draw some drawings too. Shang Wen shook the pencil in his hand and said.

"Well, then, take your leave. Mr. Qin. Chen Yong saluted.

"Farewell." Shang Wen also saluted. Then he hurriedly took the pencil and left.

A hydraulic press is a machine that uses liquid as the working medium and is made according to Pascal's principle to transfer energy to achieve various processes. The working principle of the hydraulic press. The schematic is as follows. The area of the large and small plunger is S2 and S1 respectively, and the force of the hydraulic press on the plunger is F2 and F1 respectively. According to Pascal's principle, the pressure of the confined liquid is equal everywhere, i.e., f2/s2=f1/s1=p; f2=f1(s2/s1)。 It means that the gain effect of the hydraulic pressure, like the mechanical gain, the force increases, but the work does not gain, so the movement distance of the large plunger is S1/S2 times that of the small plunger. Of course, Shangwen does not use the English letters that should be. Shangwen directly uses A and B to replace the English alphabet. Shang Wen was afraid that the craftsmen would not understand. I deliberately marked it below. Wrote a long annotation.

"Whew". This thing is finally done. Shang Wen threw away the pencil in his hand, and then stretched his arm. Not to mention, drawing with a pencil is much faster than drawing with a brush. And not afraid to make mistakes, even if they do. You can wipe it off vigorously, or find a sawdust to wipe it off. It's still best to use breadcrumbs. But to come into this world. Shang Wen hadn't eaten a meal made of wheat yet, and it was basically millet. Or it's meat. Shangwen has become a vegetarian, and if he continues like this, he must lose weight.

"Qin・・・・・ Qin ・・・・・" a devastating stammering sound came. Shang Wen hurriedly put aside his complaints and invited Han Fei, who was stammering, in.

"You don't have to speak, let's talk with a pen, so hurry up. Come in. Shang Wen completed the following actions in a row. Han Fei didn't mind Shang Wen's words, after all, it was very rude to say a person's flaws in front of a person.

"I'm here to ask Mr. Qin a few questions." Han Fei picked up a brush on the table and wrote quickly.

Shang Wen looked at it. I still barely recognize these words.

"You say." Shangwen wrote.

"The book you gave, whether there is any other content, I find that the book is a little incomplete." Han Fei wrote.

"Yes, yes. I'll copy it to you when I get back. "Shang Wen really doesn't want to write, it's too troublesome. Say it directly.

Han Fei nodded.

"Great, can you hurry up." Shang Wen saw these words written on the paper. Some crashes. This guy really doesn't think about other people's feelings. I'm dying of busyness. How can I have the time to copy a book for you?