The Grandmother in the Siheyuan

Who was selected in Chapter 419?

Why was the stimulus so strong? Because just two days later, Liu Hua saw a calligraphy work pasted on the wall in the laboratory.

The teacher said.

Liu Hua wouldn't say he could recite the entire article perfectly, but he did know some of the classic lines. For example, "A teacher is not necessarily more virtuous than his student, nor is a student necessarily inferior to his teacher."

So Liu Hua pointed to the artwork and asked with a smile, "Who wrote this? Why is it posted here? Is it meant for me, or for yours?"

The second senior student in the lab laughed and said, "It was written by our senior student. I also asked him who he was referring to. He said that whoever was touched by it was the one he was referring to."

“This kid!” Liu Hua shook his head: “Alright, you guys try to grasp the spirit of it. Anyway, I’m not moved. I hope that each of you will become like a dragon and become academicians of our country in the future.”

After Liu Hua increased the frequency of his guidance, the children's skills improved rapidly. The design of the computer control part of the metal 3D printer was completely different from what it used to be. If it weren't for the limitations of computer hardware, it would probably be no different from what it is thirty years from now.

The physics professor has solved the problem of the laser nozzle, which means that the 3D printer is basically a success, or at least the prototype is successful.

They used a 3D printer to print a complex and tiny part, and after measurement, it was almost identical to the design drawings.

All the researchers involved in the study shouted excitedly.

Liu Hua picked up his mobile phone: "Hello, Comrade Ma Shan, I am honored to inform you that our metal 3D printer has been successfully developed."

In less than half an hour, Ma Shan arrived at their laboratory, accompanied by two aircraft design experts.

To verify the new metal 3D printer, they even brought a blueprint, which Liu Hua knew was not very confidential.

“This part used to be extremely difficult to process; it was basically hand-made bit by bit by a skilled worker,” Ma Shan said excitedly. “If your 3D printer can print it successfully, then it will be a true success.”

First, you need to write the drawings on the computer, which is quite tedious. What's worse is that you're using drawing software, specifically CAD.

Our own CAD software hasn't been delivered to Qiu Bojun yet.

As the blueprints were input, the 3D printer started operating, and soon the parts inside the printer began to take shape little by little.

"It's amazing, it's like casting a concrete."

The physics professor confidently said, "This thing is much more precise than casting, and it's no worse than a high-precision machine tool."

After the workpiece has completely cooled down, the engineer takes the part out for measurement.

"Great! There's practically no error." The engineer exclaimed excitedly, "With this amazing tool, we can start mass production of our equipment."

Ma Shan waved his hand: "Enlarge it! Enlarge it as much as you can, as big as you can."

While others remained clueless, Liu Hua understood his thoughts.

"You have to eat one bite at a time, and do things one step at a time." Liu Hua nodded: "Larger-scale production is definitely possible, but you can't rush it. This is, after all, a high-precision machine. We've finished the model, but it's not like we can just scale it up proportionally. This isn't like steaming buns; a slight difference can make a big difference."

Ma Shan pulled the phone aside and whispered, "The helicopter engine you provided last time has passed the verification. The processing is quite difficult. If we can't solve the problem of mass production of small parts, then we can only equip it with limited capacity."

"How much military funding can you squeeze out now to buy new equipment?" Liu Hua said with a smile, "It's just a limited amount of equipment." "Everywhere needs helicopters now." Ma Shan shook his head, "We need to equip ourselves with at least three hundred new helicopters."

"Take it easy," Liu Hua advised him. "I've looked at this thing; it's at most a transitional model. Equipping so many at once is a bit of a waste."

“There’s no way around it, we are really short of armed helicopters.” Ma Shan said worriedly, “The design department is now optimizing the engine you provided and preparing to make some modifications. To design a heavy transport helicopter, we need at least a hundred of them.”

Liu Hua thought for a moment: "Although the prototype has been completed, scaling it up is not an easy task. You need to give us at least six months to produce the blueprints. After six months, we will hand over the blueprints to you."

"please."

Liu Hua nodded: "There's another question: can metal 3D printers be used for civilian purposes?"

“I need to ask for instructions on this.” Ma Shan shook his head: “I reckon it’s unlikely to happen for at least the next few years. This thing has strategic value.”

It's probably not just a strategic issue; secrecy is also a factor.

After Ma Shan left, the general manager of the 3D printer company from Tsinghua University arrived.

"Professor Liu, I heard that the new metal 3D printer has been successfully developed."

Liu Hua nodded: "Without instructions from above, the products you produce will probably only be consumed internally."

"It's alright," the general manager said magnanimously. "It will be launched on the market sooner or later. We can accumulate experience first."

This mindset is much better than that of the other creator; it shows a very long-term perspective.

To celebrate the greatest victory, Liu Hua treated everyone to dinner at Sha Zhu's private kitchen, which had practically become Liu Hua's family's celebration restaurant.

Sha Zhu is a chef who gets better with age. When he was young, he thought he was good at cooking and didn't care about learning. But as he got older, he became tireless in his pursuit of knowledge.

Now, the old man He Daqing has returned. Although he is old and frail and can no longer stir-fry, he serves as an advisor to his son, and the two of them have come up with many new dishes.

Nowadays, Sha Zhu's private kitchen is quite famous in Beijing.

When we had dinner that evening, besides Liu Hua's order, there were two other orders. Each table only seated ten people, and each order was just for one table.

However, Liu Hua arrived with a large group of thirty or forty people, which greatly surprised the other two restaurant owners who came to eat.

One of the bosses asked Sha Zhu, "When we come to eat, there are a maximum of ten people at a time. How come he can bring so many?"

You should know that Sha Zhu has always had a sharp tongue since he was a child. Although his tongue is slightly less sharp now that he's older, it can still hit the nail on the head.

"You compare yourself to him? What's his status? And what's yours?"

The boss was indignant and slammed his fist on the table: "What? I can't afford it? Look at the people he hired, dressed in rags. I'll pay double to get them out of here. Don't ruin my meal."

(End of this chapter)