Technology and life: starting with solar cars

Chapter 99 Mech Material and Center of Gravity
In order to make the 1.0 version of the mech stand on the ground more stably, Liu Yun intends to install a bearing between the two legs of the 1.0 version of the mech to better maintain the balance of the mech.

If difficulties are encountered in the actual design later, it is even possible to put small wheels on the two feet of the mecha.

After all, it is the 1.0 version of the mecha, and the purpose is to realize the manufacture of the 2.0 version of the mecha, so it is naturally designed as simple as possible.

However, at present, it is only in the preliminary stage. If the real design, what kind of design should be based on the actual situation.

For example, the materials of the 1.0 version of the mech and the connection methods between the various parts need to be designed according to the actual situation. It's a bit unscientific.

In addition to the materials used to make the 1.0 mecha, factors that may affect the stability of the mecha, such as the center of gravity, need to be considered. There is no doubt that since the mecha is standing, the center of gravity of the mecha must be much higher than that of a car lying on its stomach.

Too high a center of gravity means that once running at high speed, it is likely to fall to the ground due to the high center of gravity, and a mecha with a too high center of gravity may also cause the mecha to fall forward due to the problem of the center of gravity when braking. .

Mecha version 1.0 seems simple, but in fact there are still many problems to be solved, and it cannot be completed with a few words or a wild imagination.

The more useful a technological product is, the more helpful a technological product is to human beings, the more time and energy it consumes, and the more problems it encounters.

If you only do things with passion, then it is very likely that nothing can be done. You must proceed from reality, so that you can slowly approach the final product.

To design a mecha, the first thing to solve is the material problem. Whether to use ordinary pig iron or wrought iron, or aluminum products, or 304 stainless steel or copper, there is no certain conclusion, and the choice must be made according to the actual situation.

If it is a high-end customization, it must be how good the performance is and how to use the material. If you only consider performance, you must use 304 steel for the whole body. 304 steel is very wear-resistant, the surface is beautiful, clean and bright, it is durable, scratch-free, never rusts, and never breaks. In addition, it has the characteristics of corrosion resistance, anti-oxidation, lead-free, no rust, no oil, easy to clean, and easy to maintain. The ability to resist corrosion in the outdoor environment is much higher than that of iron, which can be greatly improved. Added 1.0 mech's lifespan issue.

Why can't it be used for 10 years, or the people who don't buy mechas will spend their money in vain.

Just like those people who come to Yunfan Technology Company to buy a car, a family has worked hard to save money for two or three years before they can afford a car. problems, such as body corrosion and the like.

Let me ask which family is willing to buy such a car. The quality is so poor that others have worked so hard to save money for a few years, which is equivalent to wasted money.

Liu Yun’s Yunfan Technology Co., Ltd. has been in the car sales business for a while. Naturally, it has some understanding of premature rusting of cars. Generally, cars that rust after two or three years must be due to the technology used when the car shell is electroplated. But the pass, or the technical pass but the technician's operation error caused an accident in the electroplating of the car shell.

The unqualified electroplated shells produced in the end enter the market and are loaded on cars. After being bought by consumers and driven back for two or three years, the car is rusty and rotten with a big hole.

It is uncomfortable to put such a quality problem on anyone's body.

The electroplating technology of the car shell is similar to the color steel tile technology, which is to spray the material iron to slow down the oxidation rate of oxygen to the metal.

The difference is that the color steel tile is simply painted and sprayed on the surface of the iron material. This process causes the adsorption of the spray paint and the iron material to be weak, and corrosion and rust will appear after two or three years of use.

In fact, those car shells that have corroded and rusted in two or three years are similar to color steel tiles. They are all caused by the failure of electroplating, which eventually causes quality problems.

This kind of quality problem is not only related to the electroplating technology of car companies, but also to the quality inspection system of car companies. Some car companies have a lot of quality inspection in terms of electroplating shells, which is almost equal to none.

The real electroplated iron material is very durable. It can be said that it will not be a problem to use it for ten years. It is basically the same as 304, but the electroplated iron material is not as strong as the 304 material in resisting external blows.

At present, Liu Yun's plan for the 1.0 mecha is to use it for transportation, and the 2.0 version is used for vegetative people. If there is no accident, the 2.0 version may also be used in the battle against aliens, because the 2.0 version of the mech In a real sense, the armor has met the minimum requirements of the mecha, and it can completely control the mecha to carry out various battles.

It only needs to slightly modify the 2.0 version of the mecha, and add a little place for placing weapons to realize the weaponization of the 2.0 vegetative mecha.

At present, there is no contradiction on the planet Moss, and Liu Yun is too lazy to make any combat mechs, but many aliens on the planet Moss are not very peaceful.If these aliens are not very law-abiding, Liu Yun will consider transforming the 2.0 version of the mech into a combat mech to fight the aliens.

Yes, there are aliens on the planet Moss, but all aliens on the surface are legally entering the planet Moss, and human beings will not take legal action against these aliens who enter the planet Moss legally. What about aliens with residence permits, so for these legal aliens who joined the planet Moss, most of them are very law-abiding and will not cause damage or anything.

Of course, there are mouse droppings in any group, and these aliens who legally entered the planet Muse must also have mouse droppings.

A very small number of aliens who legally live on the planet Reus destroy the planet Reus with different purposes.

In addition to those aliens who are legal but have ulterior motives, there are still many aliens who smuggle into the planet Moss.

Those aliens who lived legally did not dare to take actions to destroy the planet Reus at least on the surface, but those smugglers were different, they always tried their best to plunder all kinds of precious volunteers of the planet Reus.

Therefore, all the countries on the planet Reus have very strict management of foreign smugglers. Once they are found, they will be expelled from the planet Reus immediately. The lighter result is to sit in prison for 100 years.

Perhaps 100 years is very long for human beings, and the probability of a person living to be 100 years old is less than 1%, but many species of aliens live hundreds of years and are easy.

In terms of lifespan, human beings cannot compare with aliens at all.

For this reason, many human beings have arrested a large number of aliens to study how to make themselves live longer. Unfortunately, all the research on aliens has no effect. In the end, human beings still have not discovered how to live for hundreds of years.

I have to say that it is both good and bad for human beings not to be able to live for hundreds of years. Maybe it is not a good thing for human beings to be able to live for hundreds of years. The main reason is the location of the pyramids.

The emerging nobles will definitely impact the old nobles if they stay for a long time, which will inevitably cause turmoil in the human world.

Of course, it's a bit far away to say these things at the moment, Liu Yun's current goal is to manufacture the 1.0 version of the mecha.

In terms of foreign materials, since it is now in the experimental stage, the cost-effectiveness of the mecha is definitely not considered, and only how to make the mecha is considered.As for how to castrate foreign materials to save costs in the future, that is a matter for the future.

If there is no accident, the shell of the 1.0 version of the mecha will use an electroplated shell similar to that of a car. The cost of making this is much lower than the cost of the 304 steel shell, which is conducive to better promotion of the 1.0 version of the mecha.

The electroplating technology Liu Yun's Yunfan Technology Company does not have this technology, but this problem is not difficult at all. At present, all domestic car companies have more or less cooperation with Liu Yun. Those car companies can customize a batch of mecha shells somewhere.

If necessary, you can go to the car companies to buy an electroplating production line. I believe those car companies will still give Liu Yun this face.

After the material of the mecha version 1.0 is selected, the next step is the finalization of the material, that is, how to make the material into a model, what kind of model the material is made into, and how each part is connected. very important.

Liu Yun's consideration for how to make the material is to find a car company to customize parts of various sizes, or to go to the machine country to customize a machine that presses and folds 304 materials.

This is not difficult, just make 304 into the required shape, there is no technical difficulty, there are many ways to realize the bending of 304 metal steel, don't need to be too entangled.

And Liu Yun has already considered how to connect each part. Generally, the parts are connected between the upper arm and the forearm and between the thigh and the calf. Just like the human body, the elbow and knee need to be realized. Function.

The difference is that the mechanical connection cannot be designed as precisely as the human body, and can only be connected with various parts of the mecha using various simple methods.

The connection between the upper arm and the forearm, and the connection between the upper leg and the lower leg is quite simple. You only need to connect the rear part of the joint between the upper leg and the lower leg with a metal socket. Connect with metal sockets.

As long as the connection between the upper arm and the forearm, and the thigh and the lower leg is designed to only extend to 180°, the connection can be made safer, which means that it can be realized from 0° like the human upper arm and forearm, thigh and lower leg. Fitting to a level of 180 degrees, the upper arm and forearm, thigh and lower leg cannot form an angle of more than 180 degrees.

Once it exceeds 180°, it means a fracture for the human body, while exceeding 180° for the mecha is not conducive to the direction control of the mecha's arms and legs.

360-degree arbitrary rotation of arms and legs is prohibited, as it cannot imitate the movement of human joints and cannot make people adapt to mecha version 2.0. Not to mention, it may also make it very difficult to control the direction, and it is easy to lose control of the mechanical arms and legs. direction control.

Therefore, in the version 1.0 of the mecha, the joints of the human body are imitated to connect the upper arm and the forearm, and the thigh and the lower leg. Liu Yun has not yet thought about whether the 2.0 version of the mecha will continue to imitate the joints of the human body.

You have to eat food bite by bite. You can't imagine reaching the sky in one step. It's difficult to keep your feet on the ground and start from the simple.

I believe that as long as the mecha version 1.0 is manufactured, those who drive the mecha version 1.0 will be able to drive the mecha version 2.0 very easily. At that time, it can be said that the function of "rebirth" can be truly realized for vegetative people.

'Reincarnation' does not mean waking up, and being able to manipulate the mecha to express one's own ideas, and to simply communicate with other people.

This is what 'rebirth' means.

It is not ordinary difficult for Liu Yun, a person who does not know medicine, to really wake up the vegetative state.In fact, it is very difficult for those who study medicine to revive the vegetative people, or why there are so many vegetative people now.

The so-called "rebirth" is just the ability to use the mecha to complete some instructions, and let the mecha replace the paralyzed body.

That's it.

Because this is a scientific fantasy, not a fantasy fantasy.

Scientific fantasy pays attention to logic and possibility. Even the wildest scientific fantasy must have logic and design. You can’t just fly if you want to live forever.

Since it is science, it is natural to explain why it is possible to live forever and why it is possible to fly, even if it is to give a simple scientific explanation.

Liu Yun didn't intend to design the mecha at first, because the mecha seems to be of little use to the current Yunfan Technology Company, but after seeing the wider world, Liu Yun suddenly became a little unrestrained like a fairy idea.

That's why I wanted to design a mech.

The parts of the 1.0 mecha are still well designed. The height of the mecha is tentatively set at 3 meters, which is about the same height as the Bumblebee model that is often seen on the street.

The difference is that the appearance of the 1.0 mecha is not so gorgeous, it is mainly practical, and for the sake of practicality, various unreasonable designs of the bumblebee model on the street must be removed.

Keep only the simplest and most essential parts.

1.0机甲的高度也不一定非得三米吧，如果3米的高度重心不好调整也可能把机甲的告诉设计成2.5米甚至是2米也是可以的，4米也是可以的。

The specific height depends on the center of gravity of the formed mecha.

If the mecha wants to move forward quickly, if it wants to drive on the road as silky as a car, it must maintain a good center of gravity.This center of gravity can be a little higher, but things that must be at this center of gravity can ensure smooth operation.

Otherwise, if the mech fell while running, wouldn't that be a slap in the face?

In order to lower the center of gravity of the mecha as much as possible, Liu Yun considered putting the power supply part and even the driving part of the mecha into the thigh of the mecha.

There are a lot of loads in the thighs of the mecha, so naturally the center of gravity of the mecha can be kept very low.

This can ensure the high-speed operation of the mecha.

(End of this chapter)