In the past history, movable type printing was invented by Bi Sheng in the Northern Song Dynasty (Bi Sheng and Bi Sheng were not the same person), but it was not promoted in the end.

　　 The reasons are divided into two aspects: software and hardware.

　　The software aspect is because of the Chinese font, the number of commonly used characters is about 7000. It is inconvenient to set up an ordinal character library when arranging in letterpress type. For Latin and English, there are only 26 letters (excluding special fonts), which is relatively more convenient.

　　 In terms of hardware, Bi Sheng’s mortar movable type printing technology has a short service life of the block materials, and requires high pressure control.

　　In comparison, the type printing technique invented in 1445 not only improved the printing machine, but also adjusted the ink and block formulas. As the inventor, the German craftsman Johannes Gutenberg was the first person to truly promote movable type printing to the world.

　　 In the 2015 "Time" supplement, in the "10th to 20th century AD ranking of the top ten inventions", type printing was ranked first, even higher than Edison's electric light and Einstein's theory of relativity. (Don’t spray this ranking, just look at it.)

On the other hand, Todd's major is life engineering. In the terms of Warcraft: his microbiology and biochemistry are close to the master level, applied chemistry and chemical engineering are close to the master level, and the knowledge of other disciplines may not be the same as ordinary people. the difference.

　　 The lead type printing is mainly divided into four basic elements: printing materials, ink, word modules, and printing machines.

　　 So, for Todd:

　　The printing materials are mainly linen paper or parchment paper, which are readily available and easy to solve.

　　 Ink is not difficult to obtain, it only involves some simple chemical reactions and refining. Specifically, the linseed oil is boiled and cooled, then a small amount of turpentine distilled from pine resin is added, and then mixed with carbon black and copper, lead, and sulfur are added. After a period of time, the ink is ready for use. This kind of ink can be applied to the surface of the metal mold without water, and will not cause penetration. It is one of the most critical elements of lead type printing.

　　 As for the word module, it is not too difficult to make. Todd intends to use antimony-containing lead-tin alloy (the addition of antimony can increase the hardness of the movable type) as the material of the block, and tries to determine the proportion of the three metals. The casting method uses a convex-concave groove method, that is, fine sand or clay is used for the concave shape, and the convex shape is made of wood. The wood type was first carved out and imprinted in clay, then the wood block was taken out, and the molten pewter water was poured into the clay mold, and finally it was taken out and trimmed, and the type was obtained.

　　 The most troublesome thing is the printing press, because Todd would never make this stuff...

　　 He just vaguely remembers that there is a paper feeding slot, something like a big seal, a platform slot for a block, and a stick that can be pushed...

　　 Relying on these vague impressions, he drew a design sketch that he wanted to slap himself once after seeing it, and gave it to Aiden Kom.

　　 Todd understands that it is almost impossible to reproduce the 15th-century lead type printing machine perfectly by relying on his own power.

　　 Therefore, he asked Old Aiden to bring the drawings to bring the most familiar and reliable craftsmen. At the same time, he also found Rachel, who was more familiar with alien abilities, and hoped that she would help him in making the printing press.

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　　 Soon, in the side hall of the church that night, a group of people who seemed to be out of reach sat together.

　　 On the left side of the side hall sits Aiden Kerm and the two craftsmen whose lives were saved by Todd, while on the right sits Rachel and Harkins. Todd stood on the stage with an upright wooden board behind him and a charcoal pen in his hand.

　　 Todd tapped the wooden board behind him with a charcoal pencil and said, "Everyone, we are gathered here today to make something, and we will have a brainstorm."

　　 "Brainstorming?" The people in the audience were puzzled and started talking in a low voice.

　　 Todd patted his forehead with his hand, and said in his heart that he had committed the same problem as a teacher in his previous life. He changed his words and said, "Brainstorming means to brainstorm ideas. We work together to find a way and come up with ideas."

Todd pointed his finger to the ceiling, and the expression on his face suddenly became very serious: "What we are discussing tonight is a treasure of God. Never tell others what you hear or see, otherwise you will Punished by the Holy Spirit!"

Seeing everyone’s expressions suddenly became solemn, he nodded in satisfaction, and then began to write and draw on wooden boards with charcoal, from the basic principles of printing to machine functions, and focused on the arrangement of the blocks and the imprinting ink. Process.

　　 After finishing all this, Todd turned around and found that a group of people in the audience was silent, and he couldn't help but muttered in his heart: Is it too complicated?

　　 Fortunately, a word from Old Aiden dispelled his worries.

　　 "My lord, it is a genius idea to use lead type to print paper! People are copying by hand, and they have never thought that typefaces can be printed like this."

　　 Todd heard Aiden's words and then remembered that it seemed that in his previous life, it was not until the end of the 13th century that engraving and printing were introduced to Europe from Arabia. In other words, skipping the four generations of printing methods such as wood engraving, copper engraving, wood movable type, and mud movable type, lead type printing is indeed a product that has surpassed several centuries.

　　 Todd asked Aiden, "Then I asked for the machine, can you come up with a design plan?"

The old craftsman and two friends discussed in a low voice, and said: "We have carefully looked at the drawings of the adults. We plan to design such a machine. I don't know if it is correct? We plan to make a wooden seat at the bottom of the machine. The movable type plate is fixed on it, and an embossing plate is installed on the movable type plate. The embossing plate can be controlled by an iron or copper screw rod, which can be up or down..."

　　 Todd listened to the other party's speech, and he still didn't feel any intuitive impression. He interrupted Aiden's speech, beckoned, and handed the charcoal pencil to the old man in front of him, and said, "You said that, I still don't understand... You come up and draw the specific design plan, and then explain it. "

　　 The old craftsman was so frightened that he shook his hand and said quickly, "My lord, don't humiliate me. I am a humble craftsman. How can I make a mistake when you are there?!"

"As I said, the meeting tonight is a brainstorm... Well, I mean brainstorming. Here, there is no respect or position. Anyone who has an idea can come up to the stage to say it or draw it! "Todd shook the charcoal pencil in his hand again, and motioned to Old Aiden to come up quickly.

　　 The old man took the charcoal pencil and watched Todd sit in his place, and tremblingly drew on the board. During the period, because of nervousness, I drew the wrong pattern several times.

　　 And Todd looked at the design of the machine on the wooden board, his eyes getting brighter and brighter.

The old craftsman said with a trembling voice as he painted: "There is a pull rod beside the screw rod, which can be pushed by manpower, so that the pressure required for printing can be obtained. Then brush the ink on the movable type plate, and then spread the paper. , Shake the screw rod, and print out the handwriting through the pressure of the platen."

　　 Todd stood up at this time, clapped uncontrollably, and praised his mouth: "Awesome! In such a short period of time, you can actually think of such a perfect design!"

　　 Aiden is not greedy for merit, he pointed his hand to another craftsman: "This design was first proposed by him."

Seeing the priest turned his gaze to him, the latter quickly stood up, bent over and said, "My lord, I used to work in a winery. I found that the machine for pressing grapes is very similar to this design, which came to mind. "

　　 Todd was very happy and said loudly, "Everyone, this is what I mean by brainstorming! After all, one's wisdom and power are limited, and thinking together is the fastest way to solve problems..."

　　 "My lord..." Aiden looked hesitant.

　　 Todd motioned that he had something to say without any worries.

The old craftsman pointed to the loading table, bearing and weight bar of the machine with his finger: "If these parts are made by hand, the fit and level of the parts cannot be guaranteed. To make them requires high-temperature stamping and forging. And in the blacksmith's shop in the town, There is no such device."

　　 "Stamping forging?"

　　 Listening to the introduction of the old craftsman, Todd remembered the lathe in his previous life.

Old Aiden looked at the drawing on the wooden board and scratched his head: "One is that the temperature of the furnace body must be high enough~lightnovelpub.net~ to melt the iron; the second is to find a way to build a hammer that beats the iron. Tool; the third is to make a mold for shaping parts in advance."

　　The high temperature that can melt iron, heavy objects that can beat materials, and molds for shaping parts.

　　 Todd was thinking about these three things, and Hudgens behind him whispered a word.

　　『Regarding the high temperature that can melt iron, Alfonso’s retinue, Leslie, should be able to help. 』

　　 Todd nodded.

　　 Regarding the latter two things, he suddenly had an inspiration and turned his attention to Rachel.

　　 The nun rolled her eyes and sighed: "I can do the last two things. But can you guarantee that these craftsmen are credible people?"

　　 Todd was taken aback.

Aiden Kerm blushed after hearing what the nun said, and he retorted loudly, "What is this! Without Lord Son, I am just a poor person who can't even eat enough to eat. I should be kind to a man. Illustrated! Those two old friends of mine, let alone! They were even given their lives by adults!"

　　 Todd glanced at Huggins again, who nodded slightly.

　　 Then he thought for a moment, touched the bridge of his nose, and said to Aiden and the other two craftsmen, "Have you heard of alien species?"

　　 Aiden shrank his head, looked at the cross on his chest and said, "I heard people say that those people are "devil posthumous children"."

　　 "Old Aiden, can you trust me?"

　　 "Of course, you are the holy son protected by the holy father! You are also the alchemist blessed by God!"

　　 Todd winked, motioned Hudgens to close the doors and windows of the side hall, gathered the three craftsmen together, and whispered: "Some things you may not know, the alien species is not like the church said..."