(The previous chapter may have involved some sensitive words and was blocked. It may take two days to be released...)

Now there are generally two key issues that need to be resolved.

One is how to make a larger wooden pit on the wood that can accommodate more things, and the other is to solve the problem that the wooden wedge is nailed into the wooden pit and there is no way to pull it out.

Especially the later question about wooden wedges.

If this problem is not solved, the oil extraction business will not be carried out.

Even though time and effort were worthless in the primitive era, after working on it for so long and laboriously, only a disposable product was produced, and this disposable product could only squeeze out about ten kilograms of oil.

Even if Han Cheng is used to a slow-paced, low-efficiency life, he still can't accept it when faced with things like effort and labor that are not proportional.

"Son of God, can you dig a hole along the trunk of the tree?"

After hearing the news that Han Cheng said that in order to create a pit that could hold more tung oil fruits, it might be necessary to cut down thicker trees, Mao Er's childish face twitched a little.

Because it is already a lot of trouble to bring down the current tree completely. If we put down another tree that is thicker than this tree, it will be even more troublesome. Not to mention the rest, the tribal people

The big bronze saw is no longer long enough and needs to be rebuilt to be longer.

Because he didn't want to cut down a bigger tree, Mao Er stared at the thick tree trunk lying flat on the ground and began to think about how to make a bigger tree hole without cutting down bigger trees.

After thinking about it for a while, he actually asked him to come up with a solution.

After hearing Mao Er's words and looking at the thick tree trunk lying flat on the ground, Han Cheng was suddenly awakened.

How could I have forgotten this method!

Digging a wooden pit perpendicular to the tree trunk will be greatly limited by the thickness of the trunk itself. However, as long as you dig the wooden pit from one end to the other along the direction of the trunk, as the length increases,

The wooden pit can be made much deeper, and the capacity will naturally increase.

"Okay! Okay! Mao Er, your idea is really great!"

Han Cheng, who was smiling all over his face, patted Mao Er's shoulder vigorously and did not hesitate to praise him at all.

Mao Er, who was still a little worried at first, now saw that the Son of God was not only not angry, but also praised him so much. The little bit of worry in his heart had long since disappeared, leaving only deep joy and fullness.

of excitement.

I also solved a problem myself!

"After it was erected, it was too high. I had to stand on the wall and smash wooden wedges into it."

After Wu stood aside and figured out what to do, he scratched his head and said loudly.

"It doesn't matter if you don't stand on the wall. You can build a shelf and stand on the shelf to smash it, just like when we unwrap wooden boards."

After receiving the praise, Mao Er's thinking was very active and he was quite excited. He immediately came up with another solution.

When the tribe is sawing tree trunks into wooden boards with a big saw, if they encounter those trunks that are too high, they need to set up a frame on both sides of the trunk, and two people stand on the frame and pull the saw hard.

So it’s not surprising that Mao Er came up with such a solution now.

Han Cheng smiled and waved his hand. There was no need to stand the tree trunk up when he smashed the wooden wedges inside. You could just keep the tree trunk lying flat and smash it in.

After all, this is something that can be done by one person, unlike a saw pulled by two people.

After Han Cheng said such a method, the eyes of Wu, Lai, Maoer and other people who were not far away from Han Chengcheng suddenly lit up. This was indeed a good method.

So Han Chenggong began to arrange for people to dig out the wooden pit along the intact end of the thick oak wood, and at the same time, he also had people saw off the other end, which was destroyed after the wooden pit was dug out.

When I first chose this tree, in addition to the appropriate thickness, another reason was that the tree was handsome, tall and tall.

Now even if another section is cut off, the remaining part is still nearly six meters long, which is enough for use.

At this time, Bigfoot's body was no longer in trouble. He was directly released from his slave status by Han Da Shenzi because of the discovery of tung oil fruit and became a second-level citizen of the tribe. Now he is very motivated and can't wait to dedicate his whole body to the Qingque Tribe.

Under great construction.

So he felt fine just now and came to see Han Cheng, saying that he wanted to go back outside to build roads.

Seeing that he was healthy and still so positive, Han Cheng agreed after asking him to pay more attention to rest.

After seeing that Bigfoot's life was not in danger, the few people who sent Bigfoot back left the tribe the next day and went back to build roads again.

Even so, Bigfoot will not be lonely on this trip, because in addition to some members of the trade team, there are also some women and minors from the tribe who are going with him.

They went there to pick up some tung oil fruits and then brought them back.

A group of more than 20 people headed west along the newly built road.

There were four donkey carts traveling with him.

The minors were sitting on the donkey cart, full of novelty and joy. Some people were lying on the donkey cart, looking through the gap in the cart board to see the retreating ground. (No nonsense, just looking through a small gap,

The things on the ground retreated really fast, and the ones we rode back then were still slow ox carts)

Some people were lying on the donkey cart and looking at the clouds that they couldn't get rid of and moving with them. Some minors were pointing at the unseen scenery on both sides of the road and were very excited.

The donkey cart moved forward, leaving behind laughter along the way...

Within the tribe, the work of digging holes has stopped again, and problems have once again been encountered at work.

The problem this time is still more difficult.

Drilling holes in the tree trunks went smoothly at the beginning. After all, Lame and the others have become old carpenters. It is not a problem to dig such holes. However, as the holes continue to deepen, the problem becomes bigger.

It slowly appeared.

As the cave deepens, it becomes more difficult to dig. When Lame and the others managed to make the pit nearly two meters deep, they could no longer dig deeper.

At this time, there were still nearly four meters behind the thick tree trunk that had not been dug.

Even if a section of the end needs to be left uncut, there are still three meters that have not been cut.

"Son of God, forge longer tools..."

Lame, who was inspiring to become like Lu Ban, was worried this time and made up his mind to dig the hole in the tree trunk.

After thinking for a while, Han Cheng shook his head. This was too much trouble.

And even if you can make a five-meter-long chisel, it is very difficult to use this five-meter-long chisel to dig a regular hole. This requires too much skill and physical strength of the carpenter.

"Let's saw this tree trunk open, from beginning to end, and cut it in half from the middle."

Han Cheng looked at Lai and said.

"this……"

Lame seemed hesitant. He was worried that after sawing the tree trunk from the middle with a saw, there would be no way to extract oil. After all, when he dug the wooden pit for oil extraction, Shenzi specifically told him not to break it.

And they themselves felt that if they got this thing open, they might not be able to use it to squeeze oil again, because when they nailed the wooden wedges inside, it would be very strong.

"It's okay, let's try sawing it open."

After understanding Lame's worries, Han Cheng smiled and waved his hands.

Han Cheng had never come into contact with this kind of artificial oil press before, but now he could try it out and learn while fighting.

We were encountering difficulties in digging the tree pit, and it reached the point where we could no longer dig deeper without breaking it open.

At this time, there is no other way to think of it but to get it open.

As for how to put the two pieces of wood back together after breaking them apart, that is what needs to be solved after breaking them apart.

Follow orders lamely.

So, it didn't take long for the battered tree trunk to 'stand' up again with the joint efforts of everyone. Then two people who often pulled big saws began to stand on the erected frame, pushing and pushing.

He started sawing from top to bottom...

After the tree trunk was broken in half, it became easier to start cutting again. Several carpenters started cutting there in batches according to the lines drawn by Lame. Compared with before, the progress was improved by four or five times.

However, although the progress has been improved so much, the people who are working at Lame do not feel much excitement, because they are all feeling vaguely worried about what will happen next. I am afraid that the tree trunk that has been sawed from the middle will not be ready for the next time.

After closing it again, it doesn't work.

After more than two days of polishing, the two halves of the trunk were completely dug out, with a semicircle on each. When put together, they turned into a hollow cylinder.

"How about trying some tung oil fruits."

Lame wanted to find a way to glue them together as much as possible, but Han Cheng thought for a while and did not give in. Instead, he asked people to directly put tung oil fruits inside to conduct experiments.

Because the tree is thick enough, even if part of it is removed, the rest is still very heavy.

Now one is pressed on top of the other, which is much heavier than the legendary coffin lid.

Han Cheng wanted to try to see if he could withstand this support with just his own weight. If he could, it would be great and save a lot of trouble.

The people who went to the road construction area to collect tung oil fruits have returned, pulling four donkey carts. The people who followed did not come back empty-handed, and they had more or less something with them.

If the 'oil press' can be set up properly, the oil extracted from the tung oil fruits brought back from the tribe can basically be used to brush the vine armor.

Under Han Cheng's instructions, after going through the procedures of stir-frying, shelling, pounding, and wrapping, a package filled with fried tung oil powder was filled and placed sideways. I don't know if it can be used.

Inside the oil press.

This time, two packages of tung oil powder were filled inside, weighing almost thirty kilograms.

After pushing them to the bottom with a stick, just like the unsuccessful experiment last time, a round wooden board with a thickness similar to the inside was filled inside.

After doing this, I started to put wooden sticks inside one by one. When a certain number of wooden sticks were stuffed and it was difficult to stuff them with my hands, I started to add the bronze hammer.
To be continued...