Chen Chao got up early in the morning, because the pit for yesterday's nitrate lynx skin had not been dug yet, and another batch of pottery had to be burned today, so the people of the hunting team did not go out.

He who should dig the pit then digs the pit, and he who should pick up the timber collects the timber.

Seeing that the hunting team had only picked up half of the wood with great difficulty, Chen Chao sighed, there was no way, the fuel needed by the tribe had risen in a straight line recently, and it was difficult to meet the demand just by picking up the wood on the ground near the tribe.

I still have to get a stone axe!

After searching the database, Chen Chao found four ways to make stone axes.

The first is to make a hole in the stone and insert the handle of the axe inside. (No, it can't be done yet, Chen Chao shook his head.) ）

The second is to tie a stone axe directly to a wooden stick. This practice is the easiest, but at the same time the least durable. (No, it's not durable, Chen Chao shook his head.) ）

The third method is to polish the middle of the suitable stone slightly so that the middle of the stone is slightly narrower than the sides.

Then split one end of the handle of the axe from the middle, clamp the narrow middle of the stone with wood, and finally wrap it tightly with a straw rope to prevent it from falling off.

To be precise, there is a groove in the middle of the wood, and the stone axe can be inserted directly into it. (Yes, you can split wood with stones, but it is more difficult, you need to find something to fix, after all, wood will roll.) And depending on the strength of use, the wood may crack directly. Chen Chao considered)

The fourth is to find a suitable stone first, and then use other stones to hammer out the desired shape as an axe, which is equivalent to a blade.

The axe handle is burned through the wooden handle with coals, and the holes and grooves of the handle are finely polished with coals according to the shape of the stone chosen. (Yes, it seems to be feasible, but it is more troublesome to polish the handle holes, but you can directly put the stone axe on the top of the wood, and then use a pottery shard to mark the shape on the wood, so there is no technical difficulty.) Chen Chao considered)

In the end, Chen Chao decided to try the third and fourth methods, and each made a sample to come out.

Just do it, and then go back to the process after knowing the result, in fact, it is relatively easy, and the rest is water grinding kung fu.

At present, it is still in the production stage of stone axes, and there is no difference between the axes of the two methods, mainly in the production of axe handles.

When making an axe, you keep hitting one stone against another to create the desired shape of the axe.

The first axe handle was problematic, because the choice was to split the middle of the axe handle directly with a stone, and I also found something to fix it, and finally it was successfully split.

But it was too open, and the crack went straight from the knock to the top of the wood... Chen Chao (⊙_⊙) who sat on the side and thought about life~~

If the third method will cause the wood to crack directly, it is not excluded that the axe handle made by the fourth method will also encounter this problem after multiple uses.

He observed, could it be because of the texture of the wood? Because it's a straight texture?

After re-selecting a piece of wood that was not straight-grained, Chen Chao tapped the handle of the axe again. Sure enough, this time it didn't crack directly.

Snap the finished axe directly into the axe handle, and before the axe handle can react, quickly wrap it around the vines.

And this time, the handle of the axe is finally very powerful, and it has not cracked all over the world. It also makes people feel very strong after wrapping it around the vines, and if you want to mass produce it later, you can consider changing the vines to grass ropes, and it is estimated that the effect will be better.

The production of the fourth type of axe handle is much smoother, probably because the material has been changed, and there is no cracking of the axe handle.

But after several uses, the handle of the axe still cracked.

Chen Chao (⊙_⊙), who sat aside and thought about life

Ruled out the problem of the texture of the wood, what is the reason for this time? Is it still too stuck? But if you don't die, you just swing the axe and fly out? Wouldn't you have to reinforce it with straw rope?

But this is also a direction, Chen Chao burned a little more along the texture of the pottery shard this time, but he kept an eye on it, the top and bottom did not expand, the left and right sides expanded a little, so that the left and right sides of the axe can slightly pass through the light.

Sure enough, the stone axe with the handle of this will not fly out, and the handle will not crack.

Chen Chao summed it up, both methods can be used, and the precautions for the third method are that this precautions are also common to the fourth, that is: it is best not to use straight-grained wood, because straight-grained wood is more likely to crack.

This is the fourth kind of additionally needed note: the axe should not be too dead with the handle card. You should see the light from the left and right sides of the axe, otherwise the handle is prone to cracking.

After the members of the hunting team dug up the pond for the nitrate lynx skins, Chen Chao also returned to the tribe with two samples of his newly made stone axes.

Looking at the width and depth of the pool, the members of the hunting team basically dug exactly according to the range they had drawn, and the depth was only shallow and not shallow. The quality of the pond excavation is very good, and it is estimated that it is also the reason why Yuan took the lead early in the morning.

Yuan was very concerned about the nitrate of animal skins, and got up early in the morning to dig a pit with the 8 people yesterday, and with the hard work of 9 adult strong men, it took 2 hours last night and this morning to dig a big pit with a diameter of about two meters.

"It's still not good if you don't have tools, digging a pit can kill people." Chen Chao thought secretly in his heart.

But these things must be put aside, and the things in front of you should be done well. Although the pond is ready, it is a pit dug directly out of the earth after all. If the pool wall is not waterproofed, the water quality will be too turbid if it is filled with water at that time.

Although there was no problem with the previous two, they were experimental samples after all, and the quantity was small, and now that they were going to be mass-produced, they had to be more strict, because when there was a problem, there would be a problem with dozens of lynx skins.

In all aspects, Chen Chao still intends to be stricter.

So he took the hunting party to the forest in front of the tribe, pointed to a nearby tree, and then gestured to his head, meaning that every piece of wood that was cut down should be as thick as a human head.

The members of the hunting party ???

The stone-throwing prince who always follows Chen Chao when hunting is strong???

The one-eyed man who pinched the mud with a good hand???

At the moment, they only feel that Your Majesty, the concubines can't do it!!

It's hard for a strong man!!

Even Yuan's face was sneering, and others couldn't directly raise objections, but he, the leader, could still say a few words.

So he waved his hand at Chen Chao again and again, looking greatly frightened. "What can't be done, what can't be done."

Chen Chao saw that he was so frightened that he could speak smooth sentences, and he was secretly amused in his heart. But also, what they think in their hearts must be, who can pull out a tree with such a thick head?