Pang Ansheng and the three of them turned their eyes to Gu Fei.

Cough......

Gu Fei coughed lightly, but he didn't shirk it, and said, "Actually, now our two design plans are correct, and they are both feasible. ”

The three of them were stunned, and they all breathed a sigh of relief.

If you design for so long, and finally find that even the design direction is wrong, it will be too big.

Gu Fei smiled, and after easing the atmosphere in the laboratory, he organized his language a little.

"I've seen a lot of CNC milling or machining centers. When the merchant manufactures, he adopts both my design and Amon's design. In fact, there are more manufacturers using Amon's design scheme. ”

The three of them were even more stunned, and one of them couldn't help but widen their eyes, and they all asked, "Really?"

Gu Fei laughed and said, "I don't need to lie to you." ”

"Both options have their advantages and disadvantages," he explains. The biggest difference between them is that in my solution, the spindle (Z-axis) can not only be lifted but also moved left and right, while in Amun's plan, the spindle can only be lifted, and the rest is completely processed by moving the flat table back and forth, left and right. ”

"As we all know, the greater the degree of freedom of an object, the smaller the constraints, and the relative stability is not enough. In layman's terms, a child with ADHD is usually not safe enough.

Obviously, compared to Amon's spindle scheme, the spindle of my scheme is too "active" and not stable enough. Therefore, in industry, my design scheme is more suitable for small and medium-sized CNC milling, which is used to process those things with little resistance or small and agile. For example, a carving machine or a high-gloss machine. Amon's solution is more suitable for large machining centers for those hard and large products.

Do you understand what I say?"

The three of them suddenly realized and nodded one after another.

An Jingba blinked and asked, "So which way should we design it now?"

This question was a little troublesome, and Gu Fei couldn't help but be silent.

After a long while, he smiled and said: "We are all parties, and it is up to us to decide whose plan to choose, which is not quite appropriate and difficult to convince the public. Why don't we hand over this 'problem' to Mr. Cai Tianming, an outsider, and let him help us choose?"

The three of them were stunned and nodded in unison.

Gu Fei breathed a sigh of relief, he looked at Lin Chunhui curiously, and asked, "Ameng, why hasn't Teacher Cai been here today?"

The three of them invariably gave Gu Fei a roll of their eyes.

Pang Ansheng didn't wait for Lin Chunhui to speak, and hurriedly explained: "Old Gu, we are already in our fourth year, and we don't have any classes to attend. But Mr. Cai, he is a teacher. All kinds of mechanical experiments from junior college to graduate students need to be deployed by him, which is still very troublesome. He may be a busy day, but he hasn't been here yet. ”

Gu Fei suddenly realized, and laughed, "I see, I almost forgot that he still has to work." ”

Lin Chunhui shook his head, picked up his mobile phone and called out. After a while, Cai Tianming hurried over.

Everyone's faces couldn't help but be embarrassed.

This should be Cai Tianming's busy day after work and dinner, but he didn't expect Lin Chunhui to call, and he didn't know where he came from.

Several people looked at Cai Tianming's face, didn't care about the cold noise, and hurriedly asked Lin Chunhui to explain the situation in detail. After Cai Tianming figured out what was going on, a strange look quickly appeared on his face.

He looked at Lin Chunhui and then at Gu Fei, shaking his head and sighing.

"You need to remember that you're designing a teaching model, not a real machine. Chunhui: You always emphasize the word 'stability' in your plan, and I can understand it. But for a teaching instrument, its processing capacity is stable and unstable, so what's the point?"

Lin Chunhui's mind immediately rumbled, and before he could react, he heard Cai Tianming's faint voice again.

"There is one principle that you should follow when designing. That is, on the premise of realizing and demonstrating the working principle of the machine, the more simple and clear the mechanical structure of the whole design, the better. It's best to be able to see at a glance how each axis works.

Think about it, if a teaching aid is so complex that it takes the teacher or the student to look at it for most of the day to figure out how it works, then do you need to go to class?"

Several people were stunned for a moment, and they couldn't help but think about it.

Before they could figure it out, Cai Tianming continued.

"In addition, it is also a problem of teaching aids, which of course should not occupy too much space as teaching aids, and the structure should be relatively small.

I looked at the design of the two of you.

Gu Fei's spindle movement includes X and Z directions. The bottom of the entire model seat only moves in the Y direction. The structure is undoubtedly relatively compact. In Chunhui's plan, the spindle stays still, and the workbench needs to move back and forth, left and right, which obviously occupies more than half of the area. ”

Cai Tianming sighed, he looked at Lin Chunhui and concluded: "So among your two plans, whether in terms of structural complexity or the size of the model, Gu Fei's plan is slightly better. ”

Lin Chunhui was immediately a little confused.

Cai Tianming patted him with a tangled face, and comforted: "Your various abilities are very good. However, in terms of design this time, Gu Fei thinks in more detail than you. I suggest you go with his design. ”

Lin Chunhui is not a person who can't afford to lose. After half a ring, he came back to his senses, nodded and thanked Cai Tianming, and threw his hand directly into the trash can with a flick of his hand, which he had worked so hard to write for more than a dozen pages.

Facing the surprised eyes of the other people, he smiled and said, "Why are you all looking at me, start working!

Cai Tianming originally wanted to comfort a few words. As a result, he turned his head and found that these guys had laid down their burdens one by one and started to work seriously again.

Sooner or later, these guys will have a chance.

Cai Tianming immediately nodded with emotion and quietly slipped out the door.

Gu Fei simply sat with the other three this time, chatting with the other three in detail about his own plan.

It's just that after saying a few words, Gu Fei was a little distressed. He found it quite difficult to communicate and understand what he had in his head, based on ethereal dictation.

After thinking about it, he simply opened his notebook, called a few software, and said, "Everyone come and have a look." I'm going to put together the general structure of the whole machine. Maybe you can design and calculate based on this model. ”

When the three of them heard this, they immediately stared at Gu Fei speechlessly, feeling that their teeth were itching.

Nepal Media, your models are all drawn on the computer, what do you want us to count?

As a result, they came over to take a look, and suddenly they were shocked.

On Gu Fei's computer screen, it is not a complete machine. It's like he's making a fif, pulling some of the components together in a mess.

Although the top and bottom of the various components do not match, for example, the two gears are completely incompatible, or the transmission chain is not realistic at all but hangs in the air. The drive screw is even larger than the guide rail that carries the table......

But in the eyes of a few people, it really makes a reasonable and orderly machine. And with their knowledge, they can also distinguish the general structure of the machine at a glance, which is Gu Fei's design plan.

"Do you want me to explain?" Gu Fei asked hehehe.

The three of them were silent, but they all looked at him with disdain.

Gu Fei had already "put together" the machine to this extent, if he still needed to explain what was going on. Pang Ansheng and the three of them can directly consider changing their majors, and they don't have to waste their precious lives in the machinery industry.