"Master Faen, you really succeeded in developing the lead screw?!"

Seeing the lead screw, Xia Lin's face suddenly showed an undisguised look of surprise.

He knew that these dwarven masters were all beginner high-level fitters, but it was too exaggerated to rely on a hand-controlled lathe to thread a hard steel rod so quickly, right? I don't know how accurate this very good-looking lead screw is.

"Didn't you say that this lathe is complete? We have experimented more than 100 times in the past half a month, and this lead screw should be the one hundred and twenty-eighth, you came just in time, see how we tested this time! ”

Master Faun was a little unimpressed by Xia Lin's surprise, this was not the first time they had driven out the lead screw, but the lead screw in front of them basically did not meet the required accuracy of the lathe.

"Okay, then I'll take a look at your results, it just so happens that I have another machine here that needs this kind of lathe to process!"

Xia Lin made a wait-and-see expression, and watched with great interest as Master Faun operated the upgraded version of the all-steel machine with the pure gold cutter head of the woodworking lathe.

According to the process of testing the new lathe that he figured out, Master Faun first let the lathe idle for a few minutes to confirm that the lathe was running very stably in the idling state.

Then he stopped the lathe, took a piece of pig iron, fixed it to the tailstock of the lathe, pressed the switch of the redesigned steel gearbox, and soon the pig iron began to rotate at high speed.

Drenched with soybean oil cutting fluid, Master Faun skillfully fed the turning tools, iron filings flew out, and the stainless steel axles made from the 100 steels produced by the blacksmith shop under the dwarven rune disks were fully enough to support the processing of pig iron by the pure gold cutter heads.

"The new steel shaft looks good this time, and it doesn't make the machine shake like the last one!"

"We have repeatedly polished and measured these parts three times, and the error is within one tenths of a bini, and I think this time it should be successful!"

After a month and a half of hard study, the dwarf masters have mastered the method of judging the performance of the lathe without a teacher, and seeing that the lathe is running quite stably, the dwarves on the side are full of excitement and talk to each other.

"Don't be happy yet, you haven't finished testing yet!"

Master Faun said as he stared intently at the iron, which had the effect of a lead screw, and the feed of the turning tool was very stable, and soon the turning tool had made a circle of threads on the pig iron that had become a cylinder.

After completing the threading, he stopped the lathe, and Master Faun took out the vernier caliper made by Xia Lin and measured it on the finished product according to the method taught by Xia Lin, and found that there was not much difference between the five optional thread pitches, large diameters and small diameters, and finally he was initially satisfied with the performance of the steel machine tool.

He took a sip of ale and shouted happily to a dwarven master beside him:

"Well, this steel lathe is really fucking great, I don't think there is any problem with processing pig iron! Haha, what a genius I'm in! Halle, hurry up and get another piece of steel! ”

In the dwarves' impatience, soon the steel was also fixed to the tailstock, and Master Faun began to operate again.

The dwarves watched with bated breath as Master Faun operated, steel was the real challenge they wanted to challenge compared to pig iron.

However, Xia Lin thinks that with the stiffness of the steel shaft, as long as the overall error of the lathe parts is not large, it will not cause vibration during processing, and there should be no problem with the hardness of the refined gold cutter head to process steel, and it depends on whether the machining accuracy can meet the requirements.

Sure enough, when the steel stopped rotating, he measured the data of the threads on the steel, and looked at the results, Master Faun suddenly grinned and looked very excited:

"Great! That's great! I think we've made it! Boss, what do you think of our little darling? ”

"Great machine tool, I think the next upgrade direction is only to change the power to increase the speed, and improve the precision in various ways!"

Xia Lin really didn't expect the dwarves to give themselves such a big surprise so quickly, took the record board and looked at the data recorded on it, and his face was also full of smiles.

Such a level of machine tool can already be called the most primitive industrial machine tool, with it, Xia Lin can do too much next.

Stepping forward and stroking the cold machine tool with emotion on his face, Xia Lin nodded to the dwarven masters who had already begun to dance the celebratory dance with each other's arms and said:

"I think each of your masters is worth five gold lunt bonuses, Master Faun, as the director of the machine tool factory, the energy and time you have put in during this period is worth ten gold lunt bonuses!"

"Ten Kingents!"

Faun Molten shouted, that's ten golden! A tube of the best high-quality ale wine also costs only 21 copper pes, and with this money, he can drink it for more than half a year!

"Boss! You are truly a great and wise human being! ”

"I think we should go find a human tavern and have a good night's drink!"

"You're worth the prize money for your work, but before we celebrate, I think you'll have to build the machine I need, and with this new machine, don't you want to experience what it's like to operate it?"

Xia Lin took out a pen and paper and wrote down a few notes, handed them to Master Faun, who was still excitedly counting his fingers to calculate how long he could drink, and said to the excited dwarves.

Hearing Xia Lin say this, the dwarves didn't bother to drink and celebrate, and looked at the new machine with bright eyes, just like some anxious guests look at women engaged in special trades.

One by one, according to the ranking of their usual forging skills, they lined up to prepare to operate the new machine tools, and the scene looked similar to a group of interns who came to visit and experience the machine shop.

However, their level was not comparable to that of the interns, and after two days, the various parts of the two machines that Xia Lin needed were quickly processed one by one under the control of the seemingly clumsy, but in fact dexterous and stable big hands of the dwarven masters who worked in shifts.

The dwarves assembled the parts according to Charlin's command, and the final result was a Gutenberg printing press and a huge keyboard pickup designed by Charling.

After some trial, the Gutenberg printing machine with a simple structure performed very well, and the pressure provided by the screw turned out of the new lathe was able to press the upper and lower printing plates tightly together to achieve good printing results.

However, due to the complexity of the internal mechanism of the pickupter, the processing precision of this steel lathe is also insufficient, and the error of the parts manufactured is a little large, resulting in the situation that the pickup machine will always be stuck when the keyboard is pressed.

Anyway, there was no suitable ink for the printing machine at the moment, and there was no movable type in the pick-up machine, so Xia Lin simply put these two machines that were destined to change the world in the machine tool factory and let the dwarf masters slowly debug them.

After telling the dwarven masters to hurry up and use this new lathe to upgrade other machine tools, and then mass-produce the metal movable type needed by the printing machine, Xia Lin returned to the laboratory.

I didn't expect to solve the printing problem so easily, and Xia Lin was ready to compile the school textbook as soon as possible.

After checking the progress of the project after increasing the number of people in the laboratory, and finding that it was not bad, Xia Lin didn't care too much, sat at the desk in his room, lit up the Shimmer Rune Plate and began to think about the content of the textbook.

Compiling textbooks is a huge task and a very complex task, but as a master with a strong memory, Xia Lin has a complete education system from primary school to university built by hundreds of great educators in a country.

What he has to do is to select the parts he needs from this system and use this knowledge to build a framework system of textbooks for five years of primary school in the world.

After that, he will set up a textbook writing team, and contact some university scholars through the business alliance to complete the part of the framework that belongs to the language, which is a proposal passed at the alliance meeting, so Xia Lin does not need to worry too much about the language.

And the rest of the mathematics and nature parts are what need to be written by Xia Lin himself.

In Xia Lin's view, the content that first-year students in the business alliance school need to learn is very simple.

Chinese, Sassen 23 letters and pronunciation, then learn some phrases and words in the article, and at the same time instill some love for Xinglan Industrial Park, advocate technological development and progress, and yearn for a better new life.

Mathematics, Arabic numerals, four arithmetic, cognition of graphics.

Nature is divided into two aspects: physics and chemistry, mainly mechanical motion, mass and density, classification of matter, and periodic table.

These contents are easy to say, but they still need Xia Lin to repeatedly consider the receptivity of the students in this world and make a lot of deletions.