I am a Primitive Man

After the first successful example, the subsequent ladders became easier to manufacture.

Considering the speed at which people in the tribe climbed the wall when the enemy attacked, Han Cheng felt that it was necessary to create more ladders.

So within two days, five ladders were placed separately behind the low wall on the west side of the tribe's newly added height.

The more traditional ladders of later generations, such as wooden ladders and bamboo ladders, are not made in this way. The main difference is the installation of the horizontal bars.

The wooden ladders and bamboo ladders of later generations were made by digging out mortises on two pillars, and then smashing the crossbar into the mortises. The ladders made in this way are far from what Han Cheng imagined in terms of beauty and firmness. The poorly made ladders are comparable.

Considering that the wooden ladder is easy to be damaged by the wind and the sun all the year round, especially the rope that binds the horizontal bars is easy to deteriorate. After making a simple wooden ladder, Han Cheng wanted to make a traditional wooden ladder.

If you want to make a traditional wooden ladder, there is a difficulty that must be overcome. This difficulty is to make holes in the wood.

It is easier to make mortises in later generations, because there are sharp chisels specially used for cutting mortises.

Now, without suitable tools, Han Cheng could only frown and think hard in the face of this technical problem.

Han Cheng thought of the hand pressure drill that he had made successfully before, and after trying many times, he had to shake his head and give up this method.

The hand pressure drill can be used to drill some small holes. Once the required hole is too big, the manual drill is also powerless.

This is not something that can be done with a bigger drill bit.

Stone is a good thing, especially for primitive people and Han Cheng who can't refine metals such as copper and iron.

After the manual drilling failed, Han Cheng turned his attention to the stone.

Since stone can be used to make stone knives and stone axes, there is no reason why stone chisels cannot be made.

As soon as he said it, Han Cheng asked the people in the tribe to use the hard stone for making stone knives to make stone chisels according to his requirements.

The shape of the stone chisel is also simple, it is a round or flat long stone pillar, one end is knocked off little by little, and after a rough cutting edge is knocked out, it is placed on a big stone while sprinkling water while grinding it.

Sprinkling water during grinding is also reasonable. Of course, the most important thing is not to prevent dust and cool down, but that water can wash away the stone foam that has been ground, so that the stone used as a whetstone maintains friction.

The production of stone tools is a time-consuming task. The stone chisel is still the hand of the tribe who is better at making stone tools. It took three days to complete the work.

This wood is not that wood, this wood is an adult man from the Qingque tribe.

He used to live in the Qingque tribe. Before the people from the pig tribe joined, his personal force could rank five to seven in the Qingque tribe.

The reason why he is called Mu Mu is actually very simple, because he doesn't like to talk very much, and he always looks like Mu Mu.

Although the wood is wood, when it comes to building stone tools, the technology of wood is definitely second to none in the Qingque Tribe, and the same is true of the Pig Tribe who joined in later.

This may be related to his relatively wooden personality, and the manufacture of stone tools requires patience and continuous polishing.

So, in fact, everyone has their own shining points. The reason why they feel inferior in everything is because they only see the dazzling places of others, and they have not found something that suits their strengths.

Things are not absolute and can be converted in specific situations.

It's like wood that can't beat a fart compared to the three sticks. Letting him do business is naturally taken advantage of, but when he meets Shi Qi, he does things that others can't match.

Beep beep!

While the others in the Qingque Tribe were busy raising the fence or harvesting the grass, Han Cheng, the Son of God, was also not idle.

He held a stone chisel made of wood in one hand, and struck the top of the stone chisel with a piece of wood in the other.

Following his knocking, saw chips were scooped up by the stone chisel on the big log on the ground.

The reason why the stone chisel is struck with wood instead of harder stone is that wood can protect the chisel from damage.

beep beep beep

Han Cheng put the stone chisel on the wooden pillar at an angle, and then struck it. It can be seen that a roughly square hole with a depth of two centimeters has appeared on the wooden pillar.

Oh~

Han Cheng tapped for a while, put down the stone chisel and the wooden stick in his hand, moved his tired hands, and sighed.

The stone chisel still didn't work, it wasn't sharp enough, and it was fine at first, but as the depth of the chisel increased, the efficiency began to plummet.

This matter made Han Cheng feel melancholy, he just wanted to make some holes in the wood, why is it so difficult!

Seeing Han Cheng throwing the chisel on the ground, Mu Mu frowned and looked sad. He thought it was Shenzi who disliked the things he polished, so he didn't speak. Grind on.

Han Cheng looked at the wood carefully grinding the stone chisel, and sighed secretly while feeling warm. Stone, even if it is polished to the top, is not worth steel.

Of course, except for a diamond that goes bankrupt.

Han Cheng stared at the wood and thought hard, he continued to chisel down with a stone chisel, and finally he was able to chisel out the rivet hole, but this was not what he wanted, because it took too long, it would be better to just make a simple ladder tied with a rope .

As twilight fell, the Qingque tribe, who had worked hard all day, quieted down. The night was quiet, there were snoring sounds in the cave, and the faint fire flickered.

The shadow of the old primitive man who looked after the flames was cast on the mountain wall, making him look extraordinarily tall.

Han Cheng turned over, lay on his side and looked towards the cave, looking at this vague and quiet cave, which was quite different from the daytime.

The movement of his turning over woke Fu Jiang who was lying on his feet. Fu Jiang raised his head and looked around vigilantly. Seeing that there was nothing unusual, he lowered his head, buried his nose under his tail, and continued his sweet dream.

Have!

A thought suddenly appeared in his mind, which made him happy, and all the irritability was broken at once, and the whole person became sober.

fire!

He looked at the dancing weak flame with burning eyes.

Water and fire have the most effects, how could I forget about it? !

He was thinking about opening his eyes with fire, and he didn't fall asleep until very late.

Han Cheng got up early the next morning, did some exercise after washing up, and then began to carry out his plan to open his eyes.

Han Cheng only wanted to see that the eye was made, and it wasn't all for the ladder, just like the hand-pressed drill that he made before, it was also for laying the foundation for the future.

When iron nails were not flooded in ancient times, carpenters, bamboo craftsmen, etc. made all kinds of utensils, and the method used when connecting them was jiu.

This seemingly inconspicuous hole actually has extraordinary significance in the manufacture of utensils.

(J has something to do today, the update is late, sorry sorry)