Xu Yi almost choked to death with a mouthful of food.

"Ahem, ahem...... Cough...... Steele, what do you say?"

"Go to your house. Steele was a little inexplicable, but seeing the strange expression on Xu Yi's face, a thought turned in his mind, and he instantly understood what he meant, and his face was slightly red, and he couldn't help but smash it with a fist. "What do you want!"

Xu Yi hurriedly waved his hand and shouted: "Okay, okay, I understand what you mean, you want to go to my house to see that piano model, right? But I don't understand, what are you doing in such a hurry to see it?"

Steele stopped his movements, hesitated for a moment, and asked with some uncertainty: "Xu Yi, which one ...... Can you sell me that piano model?"

"Sold to you?" Xu Yi glanced at Steele in confusion. "What do you want that thing for?"

"I'm useful. Steele replied vaguely.

Xu Yi didn't think much about it, and shook his head: "I'm afraid not, that thing is very important to me, I'm afraid I can't sell it to you." ”

This is not Xu Yi's deliberate excuse, this piano model was made in his spare time when he was studying at Senkohel College, and it can be regarded as his first magical industrial product in this world, which is very commemorative, and he is not willing to give it to others casually.

"Well......" Steele asked after a moment of disappointment, "What about ...... Well, I actually wanted you to teach me how to make zuò, after all, making your own hands is much more valuable than buying something from someone else. ”

Xu Yi looked at Steele strangely: "Steele, let me ask more, do you want to give this thing to others?"

"yes, I need to give someone a birthday present right now, the last time I saw your piano model, it was very chic and novel, I thought it would be a great gift for a birthday. How about teaching me to do well? I promise that I won't treat you badly, as long as you help me this time, I will definitely let grandpa treat you well in the future. ”

Xu Yi touched his chin, thinking that even if he put aside this opportunity to further establish a good relationship with Camilla's great magician, just for the sake of Steele, a little beauty, he should help her with this.

"By the way, let me ask again, the person you want to give the gift to is a man, right?"

Steele's face was slightly red, and he said coquettishly: "I want you to take care of it!"

Xu Yi laughed, thinking that he really guessed correctly.

However, Steele is nineteen years old, which is the prime of life, and it is not surprising that he likes a little boy.

"Okay, it's no problem to teach you how to make zuò, but you don't have to go to my house, it's late now, I'm afraid it's inconvenient for a little girl like you to run to my house." Starting tomorrow, every day after work, you come to the lab to find me, and I will teach you there. ”

Steele looked Xu Yi up and down in surprise: "Xu Yi, I can't see that you are still such a decent person." ”

"Ahem...... Do I look like an undecent person?" Xu Yi glared at Steele angrily, and asked again angrily, "By the way, when do you need a gift?" ”

"There's still half a month, it should be fine, right?"

"Well, there's plenty of time. That piano model is actually not very technical, it just needs some delicate work. ”

After the two made an appointment, Xu Yi said goodbye and left, but did not go home directly as usual, but came to the hospital first.

The little slave, whose whole body was wrapped in gauze and wrapped in a mummy, had already woken up from a coma, lying on the hospital bed in the infirmary, staring at the ceiling, his face dazed and a little frightened.

Hearing the sound of Xu Yi talking to the doctor, he reacted, turned his head to stare at Xu Yi, and his eyes revealed a heavy curiosity.

"How do you feel?" Seeing that the little slave looked over, Xu Yi stopped talking to the doctor and asked him gently.

The little slave seemed uncomfortable with talking to outsiders, and hesitated for a while before nodding slowly.

Xu Yi smiled, did not rush to force him, and asked the doctor a few more words, and after making sure that his body was fine, he explained to the little slave: "It's okay, the injuries on your body are not completely healed, so you can rest assured that you will recuperate here for a few more days, and I will pick you up when it is completely healed." ”

Xu Yigang was about to turn around and leave, but suddenly felt the corners of his clothes tighten, and turned around in astonishment, only to find that the little slave didn't know when he stretched out his hand and grabbed the corners of his clothes tightly.

Xu Yi looked at the little slave with a nervous and frightened face, and immediately understood what he meant.

"Why? I need someone to accompany me, I'm afraid I can't do it, I'm very busy with work, I'm afraid I don't have time to spend more time here with you." Don't worry, since I have already bought you, I will not leave you. You stay here with peace of mind, and the doctor says you'll be discharged in a few days, and you'll be fine. ”

The doctor on the side glanced at Xu Yi with a strange face.

So the little guy lying on the hospital bed must be a slave.

This Xu Yi is really a weird person, he is so good to a slave.

You must know that this clinic is the best clinic in Bonta City, and the treatment fee is not cheap at all.

The little slave still clung to the corner of Xu Yi's clothes, and the fear on his face became stronger and stronger, as if he was afraid that Xu Yi would leave him alone.

Seeing this situation, Xu Yi could only sigh helplessly, turned to the doctor and asked, "What if I take him home?"

"This ...... In fact, he only has some flesh wounds, which is not a big problem, and it is no problem to bring it back, as long as he takes the medicine regularly, and then comes here every three days to change the medicine for the injury. ”

"Alright, I'll take him back first. The bed here is still reserved for him, and I will pay for the hospitalization. ”

The doctor couldn't help but look at the little slave on the bed.

This treatment, not to mention slaves, is difficult to enjoy even for children from ordinary families.

It took Xu Yi a lot of effort to bring home the little slave who was tightly wrapped and could barely move, and after finally settling him down and serving him to take the medicine, Xu Yi was already sweating profusely.

Looking at the little slave who fell asleep after taking the medicine, Xu Yi let out a sigh: "Whew...... I also told the Brunei butler that I bought him back to serve me, but now it is me who serves him. ”

Even when he was asleep, the little slave's face still showed pain from time to time, which showed how difficult his usual life was.

Looking at the thin little face, Xu Yi sighed, shook his head, turned around and took a shower, and continued to study the magic array.

With Wella's assistance in researching the magic array, the research progress of the variable speed magic fan has been much faster, and what needs to be done now is to design the most suitable shape according to this magic array.

Xu Yi originally wanted to take the opportunity of launching the second version of the magic fan to greatly improve the performance of the magic fan, but after detailed research, he found that he encountered two decisive problems that could not be avoided.

The first problem is the material.

The industrial base on the continent of Sainz is almost zero, although there are some craft products, but most of them are only selected natural materials, and even if they are processed, they are only roughly processed, and the various properties of the materials are far from being comparable to those materials on the earth that have undergone various fine processing.

For example, for a fan, the core part is undoubtedly the electric motor, which is replaced by Xu Yi's cyclone array.

But for the core bearing, which is as important as the electric motor, Xu Yi can't find something better to replace it for the time being.

Those electric fans on the earth can be made of high-density, high-wear-resistant alloy materials to make bearings, but on the continent of Sainz, they can only be made of ordinary iron.

The iron-smelting process in this world is also not as developed as the earth, and the quality of the smelted iron itself is not high, and even if it is polished, the quality of the bearings made will not be high.

When Xu Yi made the first version of the magic fan, he was very worried about the quality.

The service life of electric fans on earth can reach 10,000 to 40,000 hours, but according to Xu Yi's calculations, the service life of the first version of the magic fan will never exceed 3,000 hours.

Based on the use of each fan for eight hours a day, and the hottest three months of the year, the first version of the magic fan would only last for four years at most.

And if it is replaced by Heinze's situation of using it almost all day and night, I am afraid that the two magic fans in his house will be scrapped next summer.

It can be said that the material problem is the most stringent problem that restricts the quality of the magic fan, but Xu Yi has no way at all now.

Material technology is the most basic but complex part of the industrial system, which involves all aspects of the industrial system, and it is extremely difficult to improve even on the earth, let alone on the continent of Sainz, where the industrial base is almost zero.

The second problem is the process of making zuò.

There were no standard machine tools on the continent of Sainz, and when Xu Yi made the first version of the magic fan, he could only find those blacksmiths in the blacksmith shop and let them forge according to the drawings he had drawn.

It should be said that the craftsmanship of these blacksmiths in Bangta City is still very good, but no matter how exquisite the craftsmanship of people is, it cannot be compared with those precision machines on the earth, and there are always subtle differences in the fan shells they create.

Although this is not a big problem now, Xu Yi is very clear that if you want to greatly increase the production of magic fans, it is necessary to embark on large-scale production, so every link in the production of magic fans must be perfect, at least there must be a completely unified standard.

"Cutting machines, sliding turrets, stamping machines, drilling machines, boring machines...... Ahhh

Thinking of the various problems that need to be faced to achieve mass production, Xu Yi couldn't help but let out a painful wail.