(The previous chapter may have involved some sensitive words, so it was blocked. It may take two days to be released...)
There are basically two key issues that need to be resolved now.
One is how to make a bigger wooden hole on the wood that can accommodate more things, and the other is to solve the problem that the wooden wedge cannot be pulled out after being nailed into the wooden hole.
Especially the latter question about the wooden wedges.
If this problem is not solved, the oil pressing work cannot be carried out.
Even though time and energy were not valuable in primitive times, it took so much time and effort to make a disposable product, and this disposable product could only produce about ten pounds of oil.
Even though Han Cheng has become accustomed to a slow-paced, inefficient life, he still cannot accept the disproportionate effort and hard work.
"Son of God, can you dig a hole along the trunk of the tree?"
After hearing Han Cheng say that in order to create pits that could hold more tung oil fruits, they might have to cut down thicker trees, Mao Er's childish face twitched a little.
Because it was already very difficult to fell the current tree intact. If we were to fell a tree thicker than this one, it would be even more troublesome. Not to mention anything else, the tribe’s bronze saw was not long enough and needed to be remade into a longer one.
Because he didn't want to cut down any bigger trees, Mao Er stared at the thick tree trunk lying flat on the ground and began to think about how to make a bigger tree pit without cutting down any bigger trees.
After thinking about it for a while, he actually came up with a solution.
After hearing what Mao Er said and looking at the thick tree trunk lying flat on the ground, Han Cheng was suddenly enlightened.
How could I have forgotten this method!
If you dig a wood pit perpendicular to the tree trunk, the thickness of the trunk will greatly limit the size of the pit. However, as long as you dig the wood pit from one end to the other along the direction of the trunk, the pit can become much deeper as the length increases, and the capacity will naturally increase.
"Good! Good! Cat Ear, your idea is really great!"
Han Cheng, with a smile on his face, patted Mao Er's shoulders vigorously, not sparing any praise.
Mao Er, who was a little nervous at first, now saw that the Son of God was not only not angry, but also praised him so much. The little bit of nervousness in his heart had long disappeared, and what remained was only deep joy and excitement.
I have solved a problem myself!
“But once it was erected, it was too high, and we had to stand on the wall and hammer wooden wedges in.”
The witch, who was standing aside and had figured out what to do, scratched his head and spoke out.
"You don't have to stand on the wall. You can build a scaffold and stand on it to smash it, just like when we were untying the wooden planks."
After receiving the praise, Mao Er's mind became active and he was quite excited. He immediately came up with another solution.
When the tribe used a large saw to saw tree trunks into planks, if they encountered tree trunks that were too high, they would need to set up a rack on both sides of the trunk, and two people would stand on the rack and pull the saw hard.
So it’s not surprising that Maoer came up with such a solution now.
Han Cheng smiled and waved his hand. There was no need to stand the tree trunk upright to pound the wooden wedges inside. The wedges could be driven in just as long as the trunk was lying flat.
After all, this is something that can be done by one person, unlike a saw that requires two people to pull it.
After Han Cheng proposed this idea, the eyes of Wu, Bo, Mao'er and other people who were surrounding Han Cheng for a hundred years suddenly lit up. This was indeed a good idea.
So Han Cheng began to arrange people to dig a wood pit along the intact end of the thick oak tree, and at the same time had people saw off the other end that was destroyed after a wood pit was dug out.
When we chose this tree, in addition to the right thickness, another reason was that the tree was handsome and tall enough.
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, Big Foot's body was no longer in danger. Because he discovered the tung oil fruit, Han Dashenzi freed him from his slave status and made him a second-class citizen of the tribe. Now he was full of energy and wanted to devote himself to the great construction of the Qingque tribe.
So as soon as he felt better, he came to find Han Cheng and said that he wanted to go back to repair the road.
Seeing that he was fine and still so enthusiastic, Han Cheng told him to get more rest and then agreed.
After the people who brought Big Foot back saw that Big Foot was not in danger, they left the tribe the next day and went back to repair the road.
Even so, Big Foot would not be alone on this trip, because in addition to some people from the trading team, he would also be accompanied by some women and minors from the tribe.
They went there to pick up as many tung oil fruits as possible and then bring them back.
A group of more than twenty people walked along the newly built road, heading west.
There were also four donkey carts traveling along the way.
The minors were sitting on the donkey carts, full of curiosity and joy. Some of them lay on the donkey carts and looked through the gaps in the cart boards to see the ground moving backwards very quickly. (I am not kidding. Just looking through a small gap, the things on the ground were moving backwards very fast. Back then, we were sitting on slow ox carts.)
Some people lay on the donkey cart and looked at the cloud that they could not get rid of and was moving forward with them. Some minors pointed at the scenery they had never seen before on both sides of the road and were very excited.
The donkey cart moved forward, leaving laughter along the way...
Within the tribe, the work of digging holes was once again stopped, and problems arose again at the work.
The problem this time is still more difficult.
At the beginning, the drilling of holes in the tree trunk went smoothly. After all, Bo and the others had been tempered into experienced carpenters, and drilling such holes was not a problem for them. However, as the holes continued to deepen, problems gradually emerged.
As the cave deepened, it became more difficult to dig. When Bo and his team had managed to dig the pit to a depth of nearly two meters, there was no way to dig any deeper.
At this time, there was still nearly four meters behind the thick tree trunk that had not been chiseled.
Even if a section at the tail end needs to be left uncut, there are still three meters left to be chiseled.
"Son of God, forge a longer tool..."
Lame, who aspired to become a man like Lu Ban, became anxious this time and made up his mind to chisel the hole in the tree trunk.
Han Cheng thought about it and shook his head. It was too troublesome to do this.
Moreover, even if a five-meter-long chisel could be made, it would be very difficult to use it to chisel out neat holes. This requires too high a level of skill and physical strength from the carpenter.
"Saw the trunk in two, from end to end."
Han Cheng looked at Bo and said.
"this……"
Lame seemed hesitant. He was worried that after sawing the tree trunk in half, he would not be able to extract oil from it. After all, when he was digging the wooden pit for extracting oil, the Son of God had specifically instructed not to break it.
Moreover, they themselves felt that if this thing was opened, it would probably be impossible to use it to extract oil, because when nailing the wooden wedges into it, the force was very strong.
"It's okay, just try sawing it open."
After understanding Bo's concerns, Han Cheng smiled and waved his hand.
Han Cheng had never come across this kind of oil press before, but now he could try it out and learn while fighting.
We were facing difficulties in digging the tree pit, to the point where we couldn't dig deeper without breaking it.
At this point there is nothing else to do except get it open.
As for how to put the two pieces of wood together after breaking them apart, that is something that needs to be solved after breaking them apart.
He followed the order and walked.
So, before long, the battered tree trunk stood up again with everyone's efforts. Then two people who often pulled the big saw stood on the built frame and started sawing from top to bottom with one push and one pull...
After the tree trunk was broken into two halves, it became easier to start chiseling. Several carpenters worked in batches according to the lines drawn by Lame. The progress increased by four or five times compared to before.
However, although the progress has improved so much, the people who were working did not feel much excitement, because they were all worried about what would happen next. They were afraid that the tree trunk that had been sawed in half would not be easy to use after it was closed again.
After more than two days of polishing, the two halves of the trunk were completely hollowed out, each with a semicircle on top. When put together, they became a hollow cylinder inside.
"How about trying some tung oil fruit?"
Bo wanted to find a way to glue them together as much as possible, but Han Cheng thought about it and didn't let him do so. Instead, he asked people to put tung oil fruits in them and conduct experiments.
Because the tree was thick enough, even if part of it was taken away, the remaining part would still be very heavy.
Now one is pressing on the other, which is much heavier than the legendary coffin lid.
韩成想要试试，仅仅凭借其自身的重量，能不能扛住这种撑力，如果能够扛住的话，那就再好不过了，能够省下诸多的麻烦事。
前往修路的地方收集桐油果的人已经回来，足足拉了四驴车之多，跟随前去的人也没有空手回来，手里身上或多或少都有携带。
如果能够把‘榨油机’弄好，单单是部落里这一次弄回来的桐油果，榨出来的油基本上就能够用来刷藤甲了。
在韩成的交代下，经历翻炒、去壳、捣碎、包裹这些程序之后，有包裹着炒熟的桐油粉的包裹被填入了横着摆放在这里的、还不知道能不能用的榨油机里面。
这次往里面填入了两个桐油粉包裹，差不多有三十多斤。
用棍子把它们推到底之后，如同上次那个不成功的实验一样，往里面填入了一个和内部粗细差不多的圆形木板。
这些弄之后，开始一根根的往里面放木棍，等到木棍塞到一定数量之后，单纯的用手不好塞之后，就开始上青铜锤了。
“咚咚咚……”
锤子敲打木棍往里面钉的声音连续不断的响起，周围一片安静，众人全都看着这改装过后的榨油机，等待着奇迹发生。
跛、猫耳这些全程参与了制造的人，更是连大气都不敢出，眼睛一眨不眨的盯着，心都悬起了起来，生怕出现了差错。
然而差错还是出现了。
事实证明，棺材盖不用钉子紧紧的钉上是不成的。
一开始的时候，撑劲还不是特别大，依靠着自身沉重的份量，上面压着的那半块树干还能做到纹丝不动，但是随着这些树棍被不断的往里面钉，里面的撑力越来越大，上面的那半个树干终究还是被撑的起了缝隙。
“唉~”
跛等人齐齐的叹了口气，对这样的结果觉得很是失望。
韩成心里虽然也有些失望，但却是不大，毕竟这东西是从无到有摸索着来的，中间出现什么样的差错都有可能。
当即就让人一起将上面的那块板子给掀起，把棍子拿掉之后，重新装填。
这种本身是为了解决掏坑困难而想出来的、把树干锯成两半的法子，这会儿居然阴差阳错的把钉进去的木桩不好取出来的困难也给顺带着解决了。
不管这些木棍在里面撑的多么牢固，只需要将上面的那半块树干弄开，这种撑劲立刻就会消失，牢牢撑紧的树干也都会变得松散起来。
再一次把这些东西装填好之后，韩成让人找来一些坚韧的藤蔓，将之牢牢的捆绑了起来，足足捆绑了十来道之多。
把这些弄好了之后，继续开始填木桩，填紧之后用青铜锤不断的往里面钉。
“油！油！有油！”
这次有了这些藤蔓进行束缚，随着树桩的不断钉入，这上面的半个树干没有被撑开。
这样砸了一阵儿之后，有眼尖的人指着这简易榨油机的底部，惊喜的喊叫了起来。
韩成还有周围的其他人见此纷纷朝着那里看去。
这一看，顿时就把韩成给乐坏了，只见有一滴滴微黄的油，从简易榨油底部事先钻出来的孔洞里流淌出来，然后滴落在下面的陶盆里。
这样的情景并不怎么美妙，韩成却看的笑容满面，跛还有猫耳这些全程参与了这种简易或者可以称之为简陋的榨油机制造的人，更是看的连蹦带跳大声欢呼起来。
拎着青铜锤子一下下敲击着树桩的二师兄，低头看了看那一滴滴往下滴落的油，咧开嘴笑了笑之后，双手握着青铜锤加大了力道，一下又一下的敲击起来。
随着挤压力的加大，油脂出来的更多了，由一开始的一滴滴往下滴落，变成了一道细线，不断的滴落在下方的陶盆里面，由少集多。
周围一片的欢呼声，人人脸上都带着开心而又振奋的笑容。
这就是成功的滋味啊！
没有成功之前，往往需要付出许许多多的努力，经历诸多的痛苦，忍耐煎熬，可当这一切都过去，成功真的到来的时候，之前付出的所有一切，此时全都化成了由衷的喜悦。
而且是付出的越多的人、经历了越多煎熬的人，在这个时候得到的喜悦也就越发的强烈。
这点只要看看开心的比腿脚灵便的人跳的都高的跛就能深切的体会到。
因为这油脂的出现，整个部落一下子就变成了欢乐的海洋。
在二师兄一锤接着一锤的轰击下，这些桐油果粉被挤压的更加瓷实，里面所蕴含的油脂不断的流淌出来，在陶盆之中汇集出了一片的琥珀色。
“炒桐油果、剥桐油果、捣碎之后榨油了！”
韩成兴奋的嚎叫了一嗓子，周围围拢的人也都跟着兴奋的喊叫着：“榨油！榨油了！”
然后就是一片欢腾而又忙碌的景象，众人炒桐油果的炒桐油果、剥的剥、捣碎的捣碎，兴致很高。
而这边，在没有什么油从里面滴落下来之后，韩成开始将陶盆里面汇集的那些桐油往罐子里装。
然后用秤来称，刨去罐子本身的重量之后，这一次得到的油为五斤多一点。
这次往里面放入的桐油果粉大约有三十五斤左右，也就是说，通过这样的办法来榨桐油，出油率大概是七分之一左右。
这样的出油率算不得高，这两团子被倒在一旁的油渣里面肯定还有不少未曾挤出来的油，不过这对于现在的韩成来说，已经无所谓了。
只要能够将里面大多数的油给榨出来，就没有问题了，至于其它的，浪费一点就浪费一点吧，谁让自己弄出来的榨油机这样的粗糙，而那里的桐油果资源又是这样的充足呢？！
此时此刻，看着手中罐子里面的桐油显得格外豪气的韩大神子脸上出现了四个字，那就是有钱任性。
众人的一番忙碌之后，更多的桐油果被处理了出来，这次往里面放的多，足足有三百五十斤！
为了往里面装进去更多的桐油粉，这次这些桐油包裹没有再如同之前那样松散着装进去，而是被人用脚踩实，踩成了饼子状。
只是这样一来，又有新的问题出现。
这个问题就是，这些被人用脚踩踏出来的饼子大小不一，一个贴着一个放好之后，大的大，小的小，中间会留下不少的空隙，在这样的情况下，不少地方在接下来的榨油当中，都挤压不住，将会大大的影响出油率。
韩成站在这里搔了一阵儿的头皮之后，想出了解决法子。
他将跛叫过来，然后让跛用竹篾编织出一个个大小一样圆圈。
这些竹篾编织的晕圈直径四十五厘米，厚度为四厘米。
有了这些规格一样的圆圈，饼子大小厚薄不一的情况一下子就被解决了。
做油饼的时候只需要先将细麻布铺在地上，再把圆圈放在细麻布上，而后不断的往里面填充桐油果粉，差不多之后，再把多余的麻布对折上来，用脚踩实，并把细麻布的边角相互绑一下就好了。
而且因为外面有了一圈比较坚硬的竹圈缘故，所以将这饼子立起来之后，这些饼子并不会如同之前那样容易变形。
有了上一次的经验，这一次往里面装饼子的时候也没有如同之前那样，先把‘盖子’盖上，捆死之后再往里面装，而是先把一个个饼子一个挨着一个的在下面的那一边里面排列整齐，并将那个圆形木板靠在最后，把这一切都给弄好之后，才把上面的那个半个树干给盖上，并用坚韧的藤蔓紧紧的捆扎好。
“开始榨油！”
韩成吆喝了一嗓子，几个人开始将一根根木桩往里面填充。
因为这次往里面装的桐油果粉比之前多出来了许多，所以这一次这些木桩余在外面了很长。
“砰！砰！……”
填充紧之后，二师兄抖擞精神手握青铜锤开始砸木桩。
最开始的时候，木桩往里面进的很快，但是随着砸的次数增多，速度开始变慢，但与之相对的是有桐油从榨油机的底部滴落。
这一次桐油果粉放的非常充足，足足是第一次的十倍，所以二师兄持续的挥动了一阵儿锤子之后，那原本往下滴落的桐油，直接就变成了涓涓细流，往下方的陶盆里面淌的哗哗的。
这样的一幕，看的韩成等人喜笑颜开。
二师兄也抖擞精神，一锤子接着一锤子的往下砸，不断的挤压着这些桐油粉。
人的力量终究是有限的，二师兄砸了一阵儿之后，累的气喘吁吁，挥出的锤子力道也比不上之前，于是大师兄上前接替……
看着这满满一陶盆的桐油，韩成等人都是格外的高兴。
有了这些桐油，神子终有能够开始刷藤甲了，自己部落藤甲的品质也终于能够更进一步了！
韩成心中的喜悦在将这次榨出来的桐油分批称重，在进行加总之后变得淡了一些。
这些桐油放在盆子里看着不少，但是称重之后却只有三十五斤。
According to the oil yield recorded in the last experiment, we should get 50 kilograms of oil this time.
Even if the fruits in this batch are not as plump as the previous batch used for experiments, the difference cannot be so huge. It's simply fifteen kilograms less!
Where did these fifteen kilograms of oil go?
"Try smashing it again."
After thinking for a while, Han Cheng said to his second senior brother who had recovered a lot, and the second senior brother picked up the hammer and continued to hit the wooden stake.
However, due to his constant hammering, the wooden stake basically stopped moving inside, with only a few drops of oil dripping from it.
"Son of God, there's no more oil in there."
Wu was talking, but Yuan did not follow suit. Instead, he looked thoughtful.
After nearly a year of shocking enlightenment in the Qingque tribe, Yuan has now been initially introduced to the world of mathematics by Han Cheng.
She also figured out some tricks from Han Cheng's weighing just now.