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

Considering the speed at which the tribesmen climbed up the wall when the enemy attacked, Han Cheng felt it was necessary to make more ladders.

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

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

The wooden and bamboo ladders of later generations were made by boring mortise holes on two pillars and then hammering a crossbar into the mortise holes. The ladders made in this way were far superior to the simple ladder made by Han Cheng in terms of beauty and sturdiness.

Considering that wooden ladders are easily damaged by wind and sun all year round, especially the ropes binding the horizontal bars are prone to deterioration, 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 one difficulty that must be overcome, which is making mortise and tenon holes in the wood.

In later generations, it was easier to make mortise holes because there were sharp chisels specifically used for making mortise holes.

Now, without the right tools, facing this technical difficulty, Han Cheng could only frown and ponder.

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

A hand drill is fine for drilling small holes, but once the hole you need is too large, a hand drill is useless.

This isn't something you can just swap out for a bigger drill bit.

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

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 we cannot make stone chisels.

Han Cheng acted immediately and asked the people in the tribe to use the same hard stone used to make 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, after the rough cutting edge is knocked out, it is placed on a large stone and ground while sprinkling water.

It makes sense to sprinkle water while grinding. The most important thing is certainly not to prevent dust and temperature drop, but that water can wash away the stone foam produced by grinding, so that the stone used as a whetstone can maintain friction.

The production of stone tools is a time-consuming process. The stone chisel was made by a person in the tribe who is more skilled in making stone tools. It took three full days to complete it.

This piece of wood is not that piece of wood. This piece of wood is an adult man in the Qingque tribe.

He originally lived in the Green Bird Tribe. Before the people from the Pig Tribe joined, his personal fighting strength was ranked fifth to seventh in the Green Bird Tribe.

The reason why he is called Mu Tou is actually very simple. It is because he doesn’t like to talk much and always looks wooden.

However, although it is made of wood, when it comes to making stone tools, the Green Bird Tribe's technology is definitely second to none, and the same is true for the Pig Tribe that joined later.

This may be related to his rather dull character, and the fact that the manufacture of stone tools requires patience and constant polishing.

So, in fact, everyone has their own shining points. The reason why you feel inferior to others is that you only see the dazzling points of others and have not found something that suits you to show your strengths.

Things are not absolute and can be converted in certain circumstances.

Just like a piece of wood that can't make a fart when hit with three sticks, if asked to do business, he would naturally be a sucker. But when he meets the stone tool, he can do things that others can hardly achieve.

“Beep, beep, beep!”

While other people in the Qingque tribe were busy raising the walls or harvesting grass, Han Cheng, the Son of God, was also not idle. He held a wooden chisel in one hand and a piece of wood in the other, hitting the top of the chisel.

As he struck, wood chips were scooped up from the large log on the ground by the chisel.

The reason why wood is used to strike the stone chisel instead of harder stone is because wood can protect the stone chisel from damage.

"Beep, beep, beep"

Han Cheng placed the stone chisel at an angle on the wooden pillar and then struck it. He could see that a roughly square pit two centimeters deep had appeared on the pillar.

"Alas~"

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

The stone chisel still didn’t work because it wasn’t sharp enough. It worked fine at the beginning, but as the depth of the mortise increased, the efficiency began to drop sharply.

This matter made Han Cheng feel melancholy. He just wanted to make some holes in the wood, why was it so difficult?

Mu Tou saw Han Cheng throwing the stone chisel on the ground with a frown and a worried look on his face. He thought that the Son of God was dissatisfied with the things he had polished, so he went over to pick up the stone chisel that Han Cheng had placed on the ground without saying a word and continued to grind it on the stone.

Han Cheng looked at the wood being polished carefully by the stone chisel, and while he felt a little warmed, he also sighed secretly. Stone, even if polished to the highest degree, is still not as good as steel.

Of course, this does not include diamonds, which can make you bankrupt if you buy one.

Han Cheng looked at the wood and pondered, and kept chiseling with the stone chisel. Finally, he was able to chisel out a mortise and tenon, but this was not what he wanted because it took too long. It would be better to just make a simple ladder tied with ropes.

As dusk fell, the Qingque tribe, tired after a day's work, quieted down. In the peaceful night, snoring could be heard from the cave and a faint firelight flickered.

The shadow of the old primitive man watching over the fire was cast on the mountain wall, making him look particularly tall.

Han Cheng turned over and lay on his side, looking towards the cave. It was blurry and quiet, very different from the cave during the day.

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

Got it!

An idea suddenly appeared in his mind, which made him happy. All his annoyance disappeared at once and he became clear-headed.

fire!

He looked at the faint flickering flame with burning eyes.

Water and fire are the two most powerful things, how could I have forgotten about them?!

He was thinking about using fire to open the mortise and didn't fall asleep until very late.

Han Cheng got up early the next morning, washed up, did a little exercise, and then began his plan to open the mortise.

Han Cheng was only thinking about making the mortise and tenon, not just for the ladder. Just like the hand drill he had made before, it was also to lay the foundation for the future.

In ancient times when iron nails were not widely available, carpenters, bamboo craftsmen and others used mortise and tenon joints to connect various objects.

This seemingly insignificant hole actually has extraordinary significance in the manufacture of tools.

(I have something to do today, so the update is late, sorry)