After Becoming a Little Sister

But this is nonsense - just like using a low-precision machine tool to manufacture high-precision parts, as long as the success rate is not considered, you can always get a few suitable ones.

In fact, many of the current mechanical finishing processes are done in this way. It is nothing more than selecting usable parts from a bunch of parts, and then performing a wave of optimization. If there is no ultra-high-precision processing equipment, then each mass-produced precision Behind the processing machines, there are the remains of their companions.

When the engines of Hongqi concierge cars were hand-crafted, two engines were selected out of [-] cars.

In the same way, if the students of Dongdu Engineering don't care about the success rate, they can always try and make multi-color sintered rings of the same quality.

It's just that you need to compare your personal skills and wealth with someone else...

Moreover, the girl passed the level with ease, her expression was so confident that people doubted her life—could she think this was normal?

Does anyone think that construction machinery processing is the kind of neat and handsome one-time molding in advertisements, 100% success, and then complex multi-metal sintering is easy?No way?

The engineering students doubted life, and the instructors looked ugly, but the school management could only hold their noses and applaud to express their appreciation.

"This classmate has solid handwork and good luck."

"Luck? Does this thing need luck?" The girl scratched her face: "It's okay—by the way, I'm here to give gifts to your school. Which school is this?"

As she spoke, she took off the key chain from her waist, and then removed a plain-looking screw from the key chain, and handed it to the boy next to him who was also holding a multi-colored metal sintered ring.

This boy is currently the best student in Dongdu's engineering department. He has done countless similar experiments in his tutor's laboratory, and he can be called a laboratory monster.

But he made it three times, and the best-quality multi-color sintered ring he took out still had obvious metal sections, and the structural strength was lower than the one made by the other party, which was a shame.

If it wasn't for worrying about the presence of customers, he would either bow to apologize or be injected with engineering spirit by his seniors.

"This is my gift to your school. You can make one of the same style. The ones I gave to other schools are the same. You just need to make a nut and it can be used universally. I hope to see yours within three days. school's answer."

The girl took out her small notebook, found the name of Dongdu Engineering in a row of schools, crossed it out, and then felt that she seemed a little impolite before, so she added: "I hope to see that everyone can make progress in communication. , I also benefited a lot from your school this time.”

As she said that, the girl put away the small book and bowed slightly to everyone, etiquette is still indispensable.

Well, this is the panacea method her mentor taught her, but I don't know if it's a good word or a disguised yin and yang...

Nuts for screws?

In the crowd, Aliya, who was wearing a peaked cap and pretending to be a little transparent, touched her chin, thinking that the plot looked familiar.

And just with a nut or something, aren't you afraid of being slapped in the face by the Dongdu Students' Federation?

How about getting a god-gold ruler for secondary smelting and let them engrave on it?

Aliya wandered into the sky, but she didn't notice the ugly face of the tutor of Dongdu Student Union after taking the screw.

This thing again! !

Their engineering university has received several of the same nuts during this period, and they were all sent by the other party. There is only one requirement, and that is to get a matching nut.

In theory, this is not a difficult thing to accomplish, and according to the usual cheating methods here, throwing it into the laboratory and making it can be regarded as the work of my school. After all, my school also has people in the laboratory, which is reasonable.

But the problem is that this is not a simple screw, this is a fucking puzzle disguised as a screw!

Puzzle is translated as a maze, but the puzzle toy is not so much a maze as it is a modern three-dimensional enhanced version of a maze-type Luban lock. This thing has a structure similar to a Luban lock.

It is easy to match a screw with a nut, but it is not so simple to match a puzzle screw with a suitable nut.

Especially for the screw given by the other party, the thread pitch is only 0.02 wires, and the thread depth is 0.3 wires. If you don’t shine a bright light on this screw or touch it with your hands, it even looks like a smooth horizontal surface, and the threads are difficult to see with the naked eye. Recognized, it seems that there are reflections from the metal mirror.

If you want to get a matching nut, you have to go through a three-dimensional maze. In the end, the two seem to be simply put together. Not to mention the processing accuracy, even the puzzles are the same.

what does that mean?It means that this thing is theoretically mass-produced...

The accuracy of the international mainstream five-axis machining centers is generally around 0.2. Where did a college student in the Republic of China build a machining center of this level?Is it reasonable to use such ultra-high-precision laboratory products to beat up academic exchanges in universities?

But the girl naturally doesn't care how ugly their faces are. Anyway, she has solved the problem, and if she can process it, it means that the other party has the technology and equipment she wants.

With this method of fishing, she can be regarded as worthy of her partner.

Just thinking this way, the girl who had just returned to her team didn't notice a figure dawdling beside her at some point.

The other party patted her on the shoulder: "Hey!"

The girl was startled suddenly, looked up at the other party, and almost cried out.

"……Are you sick?"

"No, wow, you are so timid. Didn't you say that your hand is as steady as if it was interrupted?"

"Who are you?" Hearing the mandarin spoken by the other party, the girl heaved a sigh of relief: "Good craftsmanship and courage are two different things. You look cute. Can you beat an African elephant? It's not the same elephant at all. Okay question!"

"It's not impossible..."

"what?"

"It's nothing, let the African elephants go, the Asian elephants were so scared that they ran away overnight - let's get to know each other, my name is Alia."

"...It's you?" The girl suddenly realized who the other party was: "The one from Dongshan University who leads the team?"

"Yes, I came here this time to discuss matters with you. I have received the letter you sent earlier, classmate Ye, let's find a place to talk?"

"Don't call me classmate, call me Geya, everyone calls me that."

"A mute? Isn't that a curse?"

"Song of song! Elegant Ya—you're the one who curses!"

"That is to say, this kind of name is easy to misunderstand. I'd better call you Mechanic Girl."

"Your nickname is not as good as mine. At least I call my cat Wangcai and my dog ​​Miaomiao. It's quite charming."

Having said that, it was obvious that the mechanical girl didn't care about these details, and called Alia "Dongshan big one" very familiarly, and everyone found a corner and sat down.

On the stage, the management of universities boasted to each other on the surface of the exchange, hello, hello, hello, everyone, and even a special reporter came to interview.

Even though everyone knows that no one will read these interviews.

"I heard that you are very good?" Aliya pushed the milk tea in front of the other party: "Thank you for your hard work this time."

"It's not bad." The short-haired mechanical girl smiled brightly: "The main reason is that you gave too much—have you got those technologies?"

"Not yet, what do you want to do with those things?"

"Assembling a new generation of optical ultra-precision lathes, we have thought about the parameters and so on, look——"

The girl took out her small notebook from her pocket like showing off, and turned to a page: "The resolution is 0.7nm, the positioning accuracy is 0.0025um, the shape error is 28nm, the roundness and flatness are 12.5nm, and the processed surface roughness is 4.2nm...you how do you feel?"

"Although I can't understand it, I was shocked." Aliya put down the glass: "Is this what you made?"

"No, I'm only responsible for part of it."

"Didn't you say that you can make an industrial mother machine by hand?"

"Who said that? Am I a Cybertronian? I'd like to—let me calibrate the machine tool to improve the accuracy, I'm fine, hand-crank the industrial machine from the beginning to the end, I may be able to be responsible for some of the parts... But I At present, the highest precision of scraping and grinding is only a quarter of a wire, which is not enough."

"What does that mean?"

"Well... It seems that you really don't understand these things. Let me think about how to tell you how to produce a machine tool from scratch. First, we can make a rough machine tool, and then use this machine tool to lay eggs. , make a batch of rough parts that are still usable, and then manually scrape and grind these parts to improve the accuracy of these parts, and then use these high-precision parts to further assemble a machine tool with higher precision, and then repeat this process-understand ?"

"I probably understand a little bit, so it means that this process stops at your manual precision, which is a quarter of a wire?"

"Theoretically, it is possible to produce higher-precision parts through trial and error, but that's probably what it means. In terms of current mechanical processing, it is actually difficult for human beings to compare with the most sophisticated machining centers. But We can help machine tools improve machining accuracy and complement each other, such as manual adjustment of repeat positioning accuracy... Forget it, you don’t understand these things.”

The same machine tool parts have completely different precision in the hands of different people, because problems such as assembly, tool setting, and repeated positioning will affect the machining accuracy. The average represents the efficiency of processing, but it does not represent the peak of fineness.

One plus one is greater than two, that is the best result, but after talking for a while, looking at Alia's expression of "I got it", the mechanical girl suddenly felt dull.

What is there to show off in front of laymen?

She was lying on the table, her whole body limp and limp: "So, that big Dongshan, what are you looking for me for?"

"Take you to meet someone, but it seems that your majors seem to be closely related, but in fact they have nothing to do with each other." Alia scratched her chin: "Although that guy is also an engineering student, he is engaged in room temperature semiconductors, you Are you familiar with this?"

"...Normal temperature superconductor? What are you going to do? Who is that person?"

"Vichy, a German girl."

"is her?!"

"Do you know?"

"Have a grudge!"

"... Is there really a grudge?"

"Does it count if she snatched the girl I fell in love with at first sight?"

"???"

PS: I forgot to write that the sea otter that will continue tomorrow is crumbs.

PS2: Sea otter who continued to catch up tomorrow is Kam.

PS3: Continue tomorrow (referring to today

Chapter 1253 1176-The exam is over, but not yet

What is her mother's surprise?

The surprise was that the mechanical girl killed Vichy angrily three hours later—or was killed instead.

It's so weird, it's weird, Alia looks like a subway old man's mobile phone.JPG

But it's not bad. Maybe I don't understand what you mean by machining or high-tech materials.

But as soon as you say this kind of love and hatred, you love me and I love you, then I will be motivated-more! GKD!

"Her teacher is at the National Academy of Sciences. I met her once before. That sister is so good!"

"……That's it?"

"Is that not enough?"

"Is this called love at first sight?" Aliya patted the table: "You translate for me, what is love at first sight!"

"Love at first sight - just seeing me and liking it! I want it! Isn't it?"

"Are you love? You are a greedy person! You are cheap!"

"I'm honest!"

The two of them are getting louder and louder here, so that they forget that this is not an empty classroom, but full of people.