"Bang Bang Bang..."
The sound of carpenters working could be heard.
In the open space of the Qingque tribe, Yang Cheng held the wheel hub, and Lulu kept tapping on the wheel hub with a small copper hammer and a bamboo stick.
The sound of banging has been heard in the Qingque tribe all morning.
This is also thanks to the fact that the members of the Qingque tribe work during the day and are not night owls, so no one can catch up on their sleep.
If this were to happen on earth, it would be nothing more than a morning of banging, not even a bloodshed, or at least a verbal dispute.
"Wu, the last hole is drilled."
Lulu straightened up, took a long breath, and said to Yang Cheng excitedly.
Yang Cheng looked at the holes in the wheel hub. Yes, Lulu's handiwork was really outstanding.
The holes made by hand with a copper hammer and a hammer are actually not much different from the holes machined.
Each hole is almost the same size and depth, no more, no less.
Seeing this, Yang Cheng withdrew his gaze and couldn't help but look at Lulu's hands.
Lulu's hands were soft and fair, without any roughness. Daily handwork did not leave any traces on her little hands.
"I don't know how your hands are so long and dexterous, Lulu."
Yang Cheng smiled and praised Lulu.
Lulu's face turned red and she quickly said: "Wu, what should we do next?"
“Next step make the spokes.”
"Spokes?"
"Yes, it's the stick that connects the inside and outside of the wheel, like this."
Yang Cheng drew another simple sketch on the ground.
The sketch is of a rectangular stick, which should be thicker in the middle and thinner at the two ends, because the two ends are to be inserted between the rim and the hub.
The spokes looked very simple, and Lulu knew what Yang Cheng drew on the ground at a glance.
However, Lulu frowned.
"Wu, this is a bit troublesome." Lulu said.
"Well, it is indeed a bit troublesome. Every spoke of the wheel must be consistent, and there must be no difference at all." Yang Cheng nodded.
Spoke making is indeed the most difficult for primitive people.
Because primitive people need to make each spoke basically the same, this is to keep the force on the wheel even and the wheel will not fall apart after a few steps.
For the Qingque tribe who do not have the assistance of mechanical machine tools, making wheel spokes is very difficult.
Mechanical processing is okay, it's nothing more than mass production, but purely handmade production depends entirely on the technical level of the workers.
Although drilling holes in the wheel hub is very simple and is done one by one, the holes in the wheel hub are actually marked on the wheel hub. You just need to drill holes directly according to the drawn lines.
Yang Cheng looked at the troubled Lulu and suddenly smiled: "But you don't have to do each one yourself and finish them all."
Lulu raised her head and looked at Yang Cheng doubtfully.
Yang Chengdao: "You can first teach Yan Lin and Xing the work of extracting wood, let them come up with the rough shape, and then you can polish it."
"Is this okay... Yan Lin, Xing and the others..."
Lulu hesitated upon hearing this.
Obviously, Yang Cheng was not the only one who felt that Yan Lin and Xing, the beast-eared ladies, were unreliable.
"It's okay. I just want the two of them to deal with the outside of the wood. There shouldn't be any problems."
There are not many people in the Qingque tribe who are idle anymore.
The construction of walls and houses occupied all the labor force of the Qingque tribe. Except for some old people and children, everyone in the tribe was working.
Making wood is a laborious job. The elderly and children can do it, but it is not enough to last for a long time. It is better to let Yan Lin and Xing, two energetic beast-eared girls, do it.
Yan Lin and Xing were a little unhappy when they were called to help Lulu. The two of them were having fun playing chess, going back and forth.
However, Yang Cheng took a closer look and found that these two guys were not even good at playing chess. In backgammon, if the five pieces were in a line, they would win.
But these two guys were going back and forth. It was clear that four stones had already been placed in one place, and the next one would win. However, they didn't see it. On the contrary, there were places with more than six stones, and two of them were already considered winners. The beast-eared girl was still unaware.
After just a few glances, Yang Cheng couldn't stand it anymore.
"Yan Lin, place your chess pieces here."
Yang Cheng pointed to an empty space on the chessboard and said to Yan Lin, who was grabbing her hair and looking troubled.
"Get off here?"
Yan Lin subconsciously followed Yang Cheng's words and placed the chess piece in her hand on the position of Yang Cheng's fingers.
"Hey! Wu, we are connected in a line!"
Yan Lin seemed to have discovered some new continent, her eyes were bright and she shouted in surprise.
Then she puffed out her slightly developed chest and proudly said to Xing opposite her: "Xing, I'm awesome, I won!"
Xing frowned and twisted his face, looking back and forth at the place where Yan Lin had just placed the chess piece, and finally had to become frustrated and admit Yan Lin's victory.
Then Xing thought of something again, raised his head, puffed up his cheeks, and hummed: "Huh, Wu, just help Yan Lin. If you don't help me, I will kill you!"
Saying that, Xing lowered her head slightly and gently pushed Yang Cheng with her rhino horn.
Yang Cheng grabbed her rhino horn with one hand and scratched her ribs with the other.
"Hehehe... Wu... don't scratch there... it's itchy there..."
Xing was tickled and twisted in Yang Cheng's arms.
Now it was Yan Lin's turn to be unhappy, pouting and crossing her arms.
After a rough fight, Yang Cheng told them about asking them to help Lulu. The two guys were a little reluctant at first and wanted to continue playing backgammon.
However, when Yang Cheng threatened them not to eat barbecue and drink broth at night, the two beast-eared girls immediately promised to complete their tasks well.
Yang Cheng led them to Lulu: "Lulu, I'll leave them to you."
Lulu still distrusted Yan Lin and Xing, with a look of helplessness on her face, but she couldn't help it, Yan Lin and Xing were the only ones in the tribe who were still free.
"First chop those trees into logs of this size..."
Lulu directed Yanlin and Xing to start making wheel spokes.
With the efforts of several people.
In one afternoon, more than thirty spokes were successfully made. However, Yan Lin and Xing couldn't control their strength and either shortened or narrowed the spokes.
After making the spokes, it’s time to install them.
Installation of the spokes is relatively simple.
Just insert short wooden strips into the holes reserved in the wheel hub.
The holes punched in the wheel hub in advance are not side by side, but one above the other, just like the teeth of a gear are side by side.
After making the spokes, all that's left is the rim.
Making the rim is also relatively difficult, because once the rim is not done well, the entire wheel will be uneven when it rotates, rising and falling.
