After calming down and thinking about it, Chen Zhe found that building a water truck was not a simple matter. If you want to replicate this crystallization of wisdom of the ancient working people, you must understand its structure.

"I only know that the water wheel is a large operating machine, a tool for agricultural irrigation using the inertia of water potential... As for the structure of the water wheel, I only know its rough shape..."

Chen Zhe said depressed, and an idea came to his mind.

If you first create a specious counterfeit water truck like you did before, and then use the item upgrade system to upgrade it, then everything will be fine?

But as soon as this idea came to my mind, Chen Zhe shook his head and dispelled it.

This was done when I was building a hand-crank spinning wheel before, because the hand-crank spinning wheel was small and the production process was relatively simple. It could be operated secretly with Yan'er, Da Qiao and the others, and upgraded without knowing it, giving the girls a surprise.

But the water truck is a very large project now, and it is bound to be impossible for Chen Zhe to complete it alone. At that time, Da Qiao, Xiao Qiao, Yan'er and Meixi will definitely come together to help.

In this case, if Chen Zhe did not know the structure of the water truck, he would not be able to guide the construction of the four girls at all. He might have been in trouble just now.

Of course this is not possible, Chen Zhe cannot take this risk.

So when it comes to building a water truck, he has to think of other ways.

"Structural structure...the structure of the waterwheel..."

Sitting next to the sailboat, Chen Zhe kept thinking in his mind. At this time, he saw a flat stone slab not far away, so he took the stone slab over.

Then pick up a sharp animal bone and use it to carve and draw it directly on the stone slab.

According to the outline in his memory, Chen Zhe slowly tried to restore the water wheel to the stone slab.

Because he was not sure about the complete structure of the water truck, he could only draw some general structures and then use some imagination to mark the water truck logo, regardless of whether these marks were correct or not.

After twenty minutes, a waterwheel design drawing that was carved on a stone slab, half outlined by memory and half by imagination, was presented to Chen Zhe.

Chen Zhe spread the design picture on his knees and then glanced over.

The system gives a prompt:

[Item detected: Design drawing of a waterwheel with a donkey lips not in place.]

Seeing this, Chen Zhe was so angry that he smoked.

"Damn it! I have worked hard for a long time to draw. How dare you say that my donkey lips are wrong?"

But after he thought about it, he laughed.

Since the system can identify the design drawing with this donkey lips not in line with the horse's mouth, there is no doubt that the system can completely repair this design drawing!

The current water truck design drawings are indeed wrong, because Chen Zhe can't design water trucks at all. He doesn't even understand the structure of the water truck. How could he design a correct water truck?

But Chen Zhe doesn’t understand, the system understands it!

As long as the system is upgraded, won’t Chen Zhe get a correct and complete design drawing?

Thinking of this, he quickly used the system to upgrade the design drawings without hesitation.

"upgrade!"

As the popularity value of the background was consumed, the stone slab in front of him suddenly changed.

The stone slab itself is still placed on Chen Zhe's knees without moving, but the patterns on it are beginning to be rearranged. The waterwheel structure drawn by Chen Zhe using memory and imagination is completely overturned, and then it becomes a real hardcore waterwheel!

Then the system gives a prompt:

[Item detected: a well-designed waterwheel design drawing.]

"Well... it's pretty."

Chen Zhe was very satisfied with this description and looked down at the stone slab on his knees.

This time, the design drawings of the waterwheel on the stone slab have become richer and more reasonable, and many details are depicted in detail and clear.

Holding the stone slab, Chen Zhe looked carefully, and felt that he, the water wheel layman, could fully understand this design drawing, and every detail and step was orderly and easy to understand.

This is enough to show that this design drawing is very successful and can be used as a blueprint for building a water truck.

"That's great." Chen Zhe smiled and nodded. He knew that as long as this design drawing was there, he could lead the girls to build a waterwheel.

Once the water wheel is built, the ancient method of pressing lamp oil can be completely carried out with the water wheel, so that he can free his hands and no longer act as a hard laborer.

Holding the stone slab in his hand, Chen Zhe quickly turned around and walked towards the camp.

Another big project is about to begin.

...

Back at the camp, the girls were basking in the sun leisurely under the banyan tree.

Sunny days in the rainy season are not often seen, and every inch of sunshine is a rare gift from nature.

Seeing Chen Zhe coming back from the river and bringing back a strange stone slab, Meixi asked curiously: "Chen Zhe, what have you brought back?"

Da Qiao glanced at the stone slab and asked with a big brain: "Can it be a fossil?"

"Fossil?" Chen Zhe couldn't help but smile and shook his head, "Of course not. This is a tool containing the infinite wisdom of our ancestors."

"The tools that contain...the infinite wisdom of our ancestors?" Da Qiao was stunned when she heard this, and Meixi was also surprised.

After being aroused by Chen Zhe's words, the girls gathered together.

Yan'er narrowed her eyes and glanced at the stone slab, and then saw the detailed design drawings outlined on the stone slab.

"Huh? There are words on this stone slab and drawings... Brother Chen, what is this? Is it a design drawing?"

"Yes." Chen Zhe nodded, "This is a design drawing of a waterwheel that can help us build a waterwheel."

"Water wheel?" Xiao Qiao asked with his head tilted, "Water wheel is the kind commonly used by waterside in costume TV series, like a big windmill?"

"Yes." Chen Zhe nodded, "That is a smart tool that uses water potential energy to greatly improve our productivity."

Meixi knew Chen Zhe’s ideas very well. After listening to Chen Zhe’s narrative, she understood his intentions.

"I understand, Chen Zhe, you came up with this solution because we were almost running out of fuel?

The water wheel was originally used to irrigate farmland, but there was no farmland on our island. It was full of rain in the rainy season and did not require irrigation, so the water wheel was used to provide the energy source of ancient oil pressing.”

"Smart." Chen Zhe couldn't help but nod and praised, "With a waterwheel, we don't have to do a lot of physical work by ourselves, especially pressing lamp oil. This work consumes a lot of physical strength. As long as the waterwheel is there, we can free our hands."

There is no doubt that oil pressing plays a crucial role in Chen Zhe and his production activities.

Whether it is lighting at night or driving a car, all of them need oil pressing to complete, and everyone has a very large demand for oil.

The construction of the water truck determines the oil production in Chen Zhe's camp. As long as the water truck is built, the oil volume in the future will be fully guaranteed.

"Since that's the case, let's build the water truck while the weather is still sunny, right?" Da Qiao suggested.

Next, Chen Zhe first passed the drawings to the girls, and everyone should at least understand the structure of the water truck. Even if everyone divides the work and cooperates in the final work, it is very important to have a general understanding of the water truck in their minds.

The girls were amazed when they saw this easy-to-understand drawing on the stone slab.

Meixi took the lead and blew the rainbow fart: "Chen Zhe, I didn't expect that your drawings were so powerful. If you can draw such standard handmade drawings, you must have some architectural skills, right?"

Da Qiao nodded and said, "This is for sure. Chen Zhe must have studied architecture, otherwise he would not have built such a beautiful tree house."

"That's right." Meixi agreed.

Yan'er looked at Chen Zhe curiously, tilted her head and asked, "Brother Chen, why don't I know when did you learn architecture?"

As a childhood sweetheart neighbor, Yan'er did not remember Chen Zhexue's past architecture.

In order not to arouse suspicion, Chen Zhe could only smile and say, "Oh, I'm just interested in this aspect. I usually work behind closed doors at home and study it myself... This is not worth mentioning."

"Not worth mentioning?" Da Qiao pointed to the drawings on the stone slab and shook his head and said, "Don't be modest. How can a person who can draw such drawings not be worth mentioning in his architectural skills?"

Meixi also nodded and said, "Yes, in my opinion, this can be called the master's work."

After being praised by the girls for a while, Chen Zhe felt a little embarrassed, so he simply started to assign work and let everyone take charge of a task.

Considering the force required to press tung tree fruits, Chen Zhe locked the diameter of the last water truck to five meters, which means they had to erect a huge wooden wheel up to five meters, and the project volume was comparable to Chen Zhe's creation of a handmade solid wood car.

The wood of the waterwheel is still made of the black gold wood that Chen Zhe had cut down before. In order to build a car, Chen Zhe directly cut down a whole bean tree, and the height of a bean tree is about 40 meters. After making the parts of the car, there is still a lot of wood left.

In addition, because the water truck has to come into contact with river water for a long time, the wood used to make the water truck must not be deformed in water. In this way, some softer wood will be eliminated, and only the solid and reliable black gold wood meets this requirement.

After allocating the work, Chen Zhe and the girls were engaged in the busy production. They waved their rich hand tools and were busy at their own positions.

In addition to processing his own parts, Chen Zhe is also responsible for supervising the quality of parts created by others. If the quality of parts produced by others does not meet the standards, Chen Zhe will rework it.

The process of rework is also very simple -

Take the parts and walk to a place where there is no one, and then use the item upgrade system to upgrade.

——This is done.

With the help of Chen Zhe's item upgrade system, the parts created by every girl are the top-finished products.

A day passed, Chen Zhe and the girls were quite active. Although the production of the waterwheel was just beginning, at least one of the eight characters had already appeared.

At night, it started drizzling on the island again, and work had to be suspended. Chen Zhe and the girls returned to the tree house to rest, waiting for the rain to clear before carrying out the next round of processing and production.

This is how to do it, and it takes more than a week to make a water truck.

It was not until another week passed that this large tool that could convert water conservancy potential energy into labor was officially completed.

After completion, the water truck is about five meters high and needs a bracket to stand on the nearby river. Because the water truck is too large, it must be assembled to be mounted.

Chen Zhe had the only one with good arm strength in the camp.
To be continued...