"Xiaoxuan, can you lend me this scooter to my brother for a look?"
The few people had just sat on the stone benches in the west courtyard and had not even exchanged greetings for a while when Yan Shaoning couldn't help but said anxiously.
This Yan Shaoning seemed to be impatient, and Li Zexuan felt a little funny, so he said, "No problem, brother Shaoning, you can take a look if you want."
Upon hearing this, Yan Shaoning quickly lifted the scooter directly onto the stone table, and then came over to observe it carefully. I saw him turning the scooter over and over from time to time, and sighs kept coming from his mouth. In less than a quarter of an hour, Yan Shaoning had thoroughly studied all the structures of the scooter. He put down the scooter and looked towards Li Zexuan said:
"Xiao Xuan, although the structure of this scooter is simple, the creativity is really surprising. Why haven't I thought of such a simple and convenient thing before? Brother Wei really can't figure it out."
After Yan Shaoning said this, he hammered his head in frustration.
Li Zexuan smiled and said: "Brother Shaoning, don't be upset. In fact, if you think about it carefully, the structures of many things we use in our lives are generally not complicated. For example, the structure of a carriage is also very simple, but why didn't it exist hundreds of years ago? Anyone want to make a carriage
In the final analysis, it is still a matter of one's creative thinking. My master once told me that nothing is impossible unless it is imaginable. Because sometimes creativity is far more valuable than technology. If your thinking is not broad, you will never be able to create valuable new things. "
Yan Shaoning felt as if he was enlightened, clasped his hands and laughed and said: "Yes, yes, that's what I mean. Brother Wei has encountered many similar problems before. It's obviously a very simple thing, but he couldn't think of it. Xiaoxuan, what you said is what you said Got the idea.”
Li Chengqian nodded thoughtfully from the side.
Li Zexuan said modestly: "Brother Shaoning is just a fan of the authorities. Many times, if you step out of the outside world and change your thinking, you can often get unexpected results."
Yan Shaoning nodded in agreement, looked at the scooter, and said: "But Xiaoxuan, your scooter does have many imperfections. For example, the wheels will probably be very jerky when turning, and there is also the handle on the front end of your scooter. , it can only be used as an armrest and cannot control the steering of the scooter.”
Li Zexuan nodded and secretly thought that this guy came from a family of engineers. He really understood the mechanical structure. He could see the flaws of this simple scooter at a glance.
"Well, what Brother Shaoning said is absolutely true. When I first made this scooter, it was just a random move to coax my little sister. This scooter can indeed continue to be improved."
"Oh? So Xiaoxuan, you already have an improvement plan?" Yan Shaoning was very curious when he heard this. He can see the problems with the scooter, but it doesn't mean that he has a solution to the problem now.
"I have some ideas. Xiao Xi, go to the kitchen and bring me an unburnt firewood stick." Li Zexuan ordered Xiao Xi.
He could barely write with a brush, but drawing pictures was really difficult for him. The lines in engineering drawings need to be horizontal and vertical, which is difficult to do with the soft tip of the brush, at least he can't do it.
Xiao Xi took the order and left. Li Zexuan saw that Yan Shaoning and Li Chengqian both looked confused, so he smiled and explained: "I am more accustomed to using charcoal to draw pictures. I want to draw a drawing for Brother Shaoning, so that it can be explained more clearly."
The two nodded.
After a while, Xiao Xi came over carrying a burning firewood stick. After Li Zexuan took it, he pulled out the long sword and struck a few times. Everyone's eyes were blurred when they saw a slender wooden stick in Li Zexuan's hand, with a sharp point at the bottom.
It was also the first time for Li Zexuan to "sharpen a pencil" with the Wind Chasing Sword. When he saw that the result was not bad, he couldn't help but secretly sigh that he had become more proficient in controlling power.
"Good swordsmanship, I didn't expect Xiaoxuan to be good at swordsmanship." Yan Shaoning praised.
People in the Tang Dynasty favored martial arts, and the children of high-ranking officials and aristocrats loved to wear swords. Although Yan Shaoning was not very good at swordsmanship, he still had good eyesight. He did not expect that this new friend not only had unique ideas on weapons, but also seemed to be quite good at swordsmanship. Yan Shaoning is now I am becoming more and more interested in Li Zexuan.
Li Zexuan didn't answer, just spread out a piece of rice paper on the stone table and started drawing.
In his previous life, Li Zexuan was very proficient in mechanical drawing. Whether it was computer drawing or manual drawing, the drawings he drew basically did not need to be modified by the teacher and could be sent directly to the factory for processing.
When he was in college in his previous life, Li Zexuan's college organized an internship at the FAW headquarters. Their task was to go to the workshop, draw the key parts of the car they had seen in the workshop, and calibrate the dimensions.
At that time, the drawing conditions in the workshop were very limited, and even a ruler could not be used. As a result, many students drew as crookedly as a dog paw, but Li Zexuan's drawings looked like works of art.
It's not because he has attended art classes, but because Li Zexuan has been very good at copying since he was a child. When he was a child, he could look at the New Year paintings on the wall and completely draw the flying dragon on it, and the painting was wonderful and pretty.
Later, after going to college, Li Zexuan sometimes couldn't help but regret why he didn't go to an art school in the first place. It must be said that Li Zexuan is an engineering dog with artistic qualities.
At this moment, Li Zexuan was in front of the rice paper, closing his eyes and thinking about the structure of the ball bearing. Miraculously, Li Zexuan quickly formed a three-dimensional structural model of the ball bearing in his mind. This strange scene scared him so much that he almost screamed out.
Opening his eyes, he saw several people waiting for him to pick up the pen. Li Zexuan ignored the reason for the three-dimensional image in his mind and just started painting.
At this moment, he was really flowing smoothly and writing with spirit. Li Zexuan felt very strange at this moment, as if his brain was a computer and his hand was a printer. The three-dimensional image in his brain was completely reproduced directly through his hand. On rice paper.
Soon, Li Zexuan drew the three views and isometric views of the ball bearing on rice paper. Of course, he did not mark the dimensions and tolerances. He was just explaining the principles of the ball bearing and did not need these. Li Zexuan put down his pen and breathed a sigh of relief.
Yan Shaoning couldn't wait to get closer, wanting to see what Li Zexuan was painting.
I saw four different pictures drawn on the rice paper. The lines were horizontal and vertical, with some real and some imaginary. This was the first time Yan Shaoning had seen this kind of painting, but why did he draw four pictures? Could it be four parts
Yan Shaoning looked at Li Zexuan with a confused expression.
Li Zexuan was puzzled by his look and wondered: "What's wrong, Brother Shaoning? Is there something wrong?"
Yan Shaoning pointed to the rice paper and asked sheepishly: "Xiaoxuan, why do you draw four pictures? What does this mean?"
Li Zexuan was stunned. Isn't this how ancient craftsmen drew drawings? Don't they know about three views
"Um, Brother Shaoning, this is my first time drawing a mechanical drawing. Maybe the drawing method is different from yours. I wonder how Brother Shaoning drew before?"
Yan Shaoning suddenly realized, "Oh, so that's it. I happen to have some drawings on my brother. Xiaoxuan will give you a look."
After saying that, he took out a roll of drawings from his sleeve.
Li Zexuan took the drawings and opened them. Sure enough, these ancient craftsmen had not yet started using the three-view drawing method. They only drew plan views, and directly marked the areas that could not be expressed in the plan views with text. Li Zexuan couldn't help but have a headache when he looked at the densely packed small characters on the drawing. This must be too inconvenient.
No, we have to popularize modern engineering drawing methods to Yan Shaoning, otherwise it will be too troublesome to communicate in the future, Li Zexuan thought to himself.
…
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(End of chapter)