When Xu Yi walked into the magic machine tool production and research workshop, there were 100 dwarves in the workshop, all of whom were working hard.

The 100 dwarves were now in charge of different tasks, some of them were responsible for continuing to produce the five magic machines necessary for the production of magic fans, such as the Magic Tooth Rubbing Machine, and the other part was responsible for researching the new magic machines that Xu had given them.

For now, the focus of research is on the Magic Harvester.

After talking with Viscount Leslie last time, Xu Yi was convinced that the prospect of farmland machinery was very vast on the Sainz continent, so he began to study it after returning.

And because he was about to enter the autumn harvest stage, the first target Xu Yi aimed at was a small agricultural harvester.

This research was divided into two aspects at the same time, one was the magic array that Xu Yi and Steele jointly researched to represent the power drive of the harvester, and the other was the mechanical structure of the harvester that these dwarves were responsible for.

Among them, Xu Yi is in charge of the most important work, he must perfectly combine the power of the magic array with the harvester as a whole, and in order to do this, he needs a lot of practical support, so he has been running back and forth between the production workshop outside the city and the research institute in Bangta City almost every day.

Of course, the hard work is rewarded, after this period of research, the small magic harvester has begun to take shape, and now in this workshop, the dwarves in charge of researching the new magic machinery have made a magic harvester that only looks like a harvester on the earth, and is constantly debugging.

Seeing Xu Yi coming in, Camby, a dwarf who had been appointed by Xu Yi as the director of the workshop, walked over.

"Hey, Xu...... Oh no, President, you're coming to see the Mana Reaper again?" Canby raised his stubby arm and greeted Xu Yi.

"Alright, Camby, just call me by name. Xu Yi smiled and nodded. "That's right. Don't you see that in the Viscount's farmland outside, all the wheat is starting to turn yellow? It looks like the harvest will begin in less than a month. If we don't hurry up and get the magic harvester out before the wheat is ripe, we'll have to wait at least half a year. ”

"Don't worry, my brothers are working overtime these days. You see, this thing has actually been made, but there will always be some small problems, otherwise you can go straight to the ground. ”

"It's better to find a problem now than to have a problem when you use it later. ”

Xu Yi and Camby walked up to the dwarves who were debugging the magic harvester, and inquired carefully, and found that the problem they were encountering now was that after the machine ran at high speed for a period of time, it would obviously not run smoothly.

There was no need to inspect it at all, and Xu Yi knew that it must be because of a fault in the bearing.

Sure enough, when I opened it, the power shaft of the magic harvester was obviously worn, and the surface of the guide shaft was uneven, which naturally affected the operation.

Xu Yi is actually very helpless about this, because this is completely a material problem of the bearing.

Due to the limitations of iron smelting technology on the Sainz continent, there is currently no alloy steel suitable for making bearings that can have both wear resistance and tensile resistance.

However, whether it is white iron or gray iron, it is not enough to create such bearings that require constant high-speed rotational friction.

Although the previous magic fan also needed high-speed bearings, because the power output of the magic fan was not large, the pressure caused was not large, and it could cope with simple iron bearings, but it was easy to have problems on a machine that needed strong power such as a magic harvester.

The material problem could not be solved for the time being, he thought carefully for a while, and could only adopt a compromise plan, let the dwarves add an iron ball roller in the middle of the bearing, which can effectively reduce friction and prolong the life of the bearing.

Of course, this will also make the output power relatively weak, so Xu Yi had to reconsider the modification plan of the magic array to ensure that the magic array can output enough power.

"Alas, to put it mildly, the industrial system on this continent is too thin. If there are more than a dozen alloy steel materials to choose from just like on Earth, where is there such a trouble?" Seeing that the dwarves were busy again because of a small change of their own, Xu Yi couldn't help but shake his head and sigh in his heart.

Thinking of this, Xu Yi naturally thought of the material research room he set up in the dwarf tribe.

Although most of the research expenses of the five hundred gold coins a month he promised at that time were to obtain these hundred dwarven forging masters, he still had a trace of hope in his heart.

If those dwarves of the dwarven tribe can really make a breakthrough in material research, then the investment of five hundred gold coins per month is too worthwhile.

Of course, as an expert in mechanical engineering, Xu Yi knows that material research is not a bit fancy, and can only be improved step by step, which is not in a hurry.

"Well, the so-called mechanical engineer is supposed to solve these problems. Completing tasks under limited conditions is what it means for a person like me to exist. Thinking of this, Xu Yi habitually cheered himself up in the bottom of his heart.

It immediately occurred to him that because of this small change, he had to make corresponding changes to the magic array. And when he thought of modifying the magic array, Xu Yi naturally thought of the two girls who were in the office at this time.

"Oh no, patronizing my work here, I almost forgot about the two of them. Xu Yi slapped his thigh, pulled Camby to explain a few words, and hurriedly left the workshop and returned to the office.

"I'm sorry, I have something to ......delay," Xu Yi pushed open the door of the office, and was about to apologize, but suddenly saw Akali and Evita both lying on the table, concentrating on the magic array drawings in front of them, thinking about changes, so he immediately stopped talking.

It wasn't until Xu Yi stood at the door for a while that Akali was probably a little tired, straightened up and stretched, and then found Xu Yi.

"Huh, Lord, when are you back?" asked Akali in surprise.

Hearing Akali say this, Evita was also shocked and turned to look at Xu Yi.

Xu Yi smiled slightly: "It's been a while, but seeing that the two of you are very attentive, I didn't bother you." ”

"What is there to bother with. Akali stretched out her little fist and knocked on her head, complaining, "Lord Grown, these drawings you gave us are really troublesome, Evita and I have been thinking about it for a long time, but we haven't even finished one. Do you think we're too stupid to solve these problems?"

"How could that be. Xu Yi laughed. "I'll tell you the truth, it took me several days to solve these problems, and if you can solve them all in such a short time, believe it or not, I'll keep you even if I pay you a hundred gold coins a month?"

Akali couldn't help but glance at Xu Yi: "You know that we can't do it, and you deliberately say that the high remuneration will whet our appetite." ”

Evita noticed something else: "Elder, do you mean that these drawings are actually problems that you have already solved......?" Can you show me the solution?"

Xu Yi shook his head: "I'm afraid this won't work, because the final solution can be regarded as a secret of our Chamber of Commerce at present, and it won't be shown to others." ”

Evita let out a disappointed sigh and hung her head.

"Of course, if you officially join our Chamber of Commerce, then these secrets will not be confidential to you. Xu Yi smiled again.

Akali said dejectedly: "Elder, these drawings you gave are so difficult, I'm afraid you won't want us if we want to join your Chamber of Commerce now, right?"

"Not necessarily. Xu Yi smiled and shook his head. "Can you show you your solution first?"

Taking the drawings handed over by the two, Xu Yi looked at them carefully for a while, and couldn't help but nod with satisfaction.

Although these two people did not give a complete solution, from some of the ideas they left on these drawings, Xu Yi can completely see that they are indeed worthy of graduating from the Lampari Royal Academy, and their understanding of the magic array is very good, and the ideas and solutions they put forward have also reached a very high level, and they are even very close to the solution that Xu Yi finally studied.

And from the thoughts of the two, it can also be seen that the personalities of the two are indeed different.

In contrast, Akali's ideas are more active and imaginative, and there are some extremely bold ideas in the plan, which can even be called whimsical.

Evita, on the other hand, is a little more decent, but it can be seen that her basic skills are extremely solid, and every step of the solution idea has a solid foreshadowing, and the overall idea is almost perfect.

If Evita is given enough time, I believe she will eventually come up with a realistic and feasible solution.

After reading these drawings, Xu Yi was extremely happy.

Although these two of Steele's classmates are not powerful magicians, as Steele said, the two of them are good enough to do the current work of the Institute.

If they join, plus Steele, Xu Yi will have three more reliable helpers, which will definitely greatly improve his efficiency in the research of the magic array.

Thinking of this, Xu Yi put down these drawings, met the expectant eyes of the two, and showed a hearty smile at them, and said, "I must say that both of them are very good, and they are completely in line with the work requirements of our Xinfei Chamber of Commerce Magic Research Institute. Now I would like to solemnly ask you a question. Would you like to join our Xinfei Chamber of Commerce?"