According to Ding Qi's guidance, the tribal craftsmen weaved the first net and went to the South Lake to try it.

Not working well!

The reason is that the netting technique is not skilled, and there are even two times when the netcasters fall into the lake with the nets thrown out. This made a dry net weaver very depressed, and vowed to improve the fishing net and net casting technology.

Ding Qi came here this time at the invitation of their craftsman team leader to discuss how to improve the netting technique.

The key to casting the net is to cast, not to throw, not to throw.

For Ding Qi, who has never been exposed to casting nets, he can only recall the methods he has seen in his previous videos, and try to squeeze all the details out of his mind for the reference of these craftsmen.

The tribe's current fishing net weaving skills have improved a lot, and everyone can weave nets according to the method of weaving nets and pockets taught by Ding Qi before, which is the result of Ding Qi's efforts to help the neighbor's children learn how to make kindergarten homework. Because of this, Ding Qi almost became the king next door.

Unexpectedly, Lao Wang next door didn't make it, and this method of weaving nets became a means for him to make a living in the primitive world. I have to say, life is really amazing!

The net consists of several parts such as nets, pendants, slings, and ropes, and the craftsmen adjust the length and position of the slings many times according to Ding Qi's instructions, and finally get the right length. The length and diameter of the sinker are also considered to ensure that the net can quickly enter the water and trap the fish.

According to the current weaving level, as well as the quality of the material, it can only be adjusted and improved in actual use.

So, for now, we can only start with the technology of casting a net. Ding Qi had no choice but to think about the scene he saw in casting the net, and asked the person who cast the net to arrange the rope, net coat and pendant underneath, and then practice casting the net for a long time. His goal was to practice perfectly, to practice almost on land, and then move on to the South Lake for practical practice and fishing.

In addition, in terms of water entry speed and anti-corrosion, Ding Qi considered using tung oil to infiltrate the fishing net, which can not only be waterproof and anti-corrosion, but also speed up the water entry speed. However, Ding Qi has also heard of a method, that is, after the net clothes are braided, they are immersed in pig blood and soaked thoroughly, and then they are taken out and exposed to the scorching sun to make the blood coagulate, which can achieve the effect of slowing down the net clothes from corrosion.

It's just that at present, the tribe does not have so much pig blood for the time being, and it can meet the demand after the scale of pig breeding reaches a certain level.

After handing over these things to the craftsmen, Ding Qi went to Jing's carpenter shop again. Now there are nearly fifty carpenters, and in addition to working planks, barrels, stools, and chairs, they also devote five or six people to study the mortise and tenon structure and how to build better houses.

Now their group of carpenters have been working on a fixed format of wood under Ding Qi's suggestion, mass-producing all parts of a piece of wood, and finally assembling it, which can be regarded as embarking on an assembly line.

On the other side, there are three or four people working on making wooden wheels, and they cut some hardwood from the forest to process it into various sizes of wooden wheels, combined with bronze, to make the wheels stronger and more durable.

As the tribe grew and exchange activities increased, carts capable of transporting large quantities of supplies needed to be crafted. The drawings of these wheels have been drawn by Ding Qi for everyone, and everyone is experimenting with which wood is more suitable and how to match it with bronze.

After turning around, Ding Qi didn't bother everyone, and went straight to a newly built high-walled courtyard by the lake. This courtyard runs north-south, 50 meters wide from east to west, 80 meters long from north to south, and the wall is 5 meters high.

There is something strange about this courtyard, there is no gate and no wall on the south side, facing the whole South Lake. The only gate was in the middle of the east wall, five meters wide, with two large heavy wooden doors, which opened only slightly by a slit. This was the dock where the tribe built wooden boats.

After Ding Qi returned, Ding Qi arranged for people to start building, with the bricks and lime stored before, and there were enough manpower, this dock was built in less than ten days.

The dockyard was filled with all kinds of wood and sawn planks, and in the middle was the skeleton of a wooden ship under construction, where the keel and corner beams were being built.

The size and shape of every place and board in this wooden boat made by Jing are very clearly remembered on paper. All this is thanks to the straw paper made by Tinch, which is registered with a sharpened charcoal pen, and is also prepared for the next step of mass production of such boats.

The boat was designed to be 15 meters long, 4.5 meters wide, 1.6 meters high, and had a draft of 890 centimeters. Three masts are set up in the middle of the hull, which can relieve the pressure of sailors rowing when the wind is downwind.

Keels and corner beams are currently being manufactured, and the corner beams are only just beginning to be made, reinforced with bronze nails, and sometimes drilled with a newly created drill to make it easier for the bronze nails to be drilled in. The keels are made of wood about 35 centimeters thick, and the wood used for the corner beams is also 20 centimeters thick and 2 meters long, cut with adzes and saws.

The ship was built in proportion to the size of the previous boat, but at the current pace, the man-hours and manpower required will not increase proportionally, but exponentially.

Jing took ten people to do this, mainly after choosing the right wood to cut the saw, which would take even longer work, and Ding Qi estimated that he would be making it here all winter and not going into the water until next spring.

After chatting with Jing for a few words and learning about the progress, Ding Qi walked out of the door to see the growth of the aquatic crops by the lake. Such as gourd, lotus leaf, water chestnut and so on.

After reading these works, Ding Qi went to the ash kiln built by the red deer in the city to discuss how to improve the toughness of the bronze weapon. Yesterday in the face of those lions, the performance of the bronze weapon was a little unsatisfactory. Although it can pierce the opponent's body and cause damage, it can't withstand the opponent's strong impact and can be easily broken. Including bronze swords, the swords currently made are only suitable for splitting and cannot withstand vigorous breaking.

Ding Qi understands that the bronze sword contains little tin, has good toughness, but is not sharp enough and soft; The bronze sword with a large tin content is sharp enough but not tough enough to break easily. Therefore, how to achieve a perfect ratio of copper and tin is currently necessary to strengthen research.

The bronze axes made by the tribe are now made according to the ratio of copper to tin to five, and the sword and sword are made according to the ratio of four to one. According to what Ding Qi learned before, the tin content is between 17% and 20%, and the bronze weapons produced are the toughest and sharpest.

However, after yesterday's battle, there are still many drawbacks and defects in this proportion of weapons, and they still need to be improved.

Ding Qi found the red deer and told the red deer about his idea of improving the bronze weapon, and the direction of improvement was to carry out the composite weapon, that is: the bronze with low hardness and the bronze with high hardness were combined to forge it to achieve the purpose of being both sharp and hard and not easily broken.

This is the best way that Ding Qi can think of after thinking about it, before he discovers iron ore, there is no one.

It is possible to cast a sword spine from a low-hardness bronze, and to attach or wrap a hard-working bronze as a blade on the two-edged part, and the pressure casting method that has been used until now can be used. In this way, when the bronze sword is impacted, the softer spine can absorb the impact and avoid breaking, while the harder blade area can ensure lethality.

This is the theoretical method of making a composite sword, and it depends on whether the cadres led by the red deer can achieve this goal.

At present, the stamper used by the tribe is already a standardized stamper, and after two flat clay pieces are die-cast into the shape of a sword, they will be put into an ash kiln to be fired into a clay mold, and the clay mold can be reused until it is destroyed.

There are two methods at present, one is to use the current pottery mold to make the sword spine, and then make a new pottery mold, hang the sword spine in the middle of the pottery mold, pour the bronze juice with high hardness into it, wrap the sword spine, and form the kind of sword in theory. It's just that this kind of sword is wider, thicker, and heavier than the previous sword, and it must be inconvenient to wield it, and you have to hold the sword in both hands.

Another method is to use the current pottery mold to make the final molding pottery mold, re-make a model of the sword spine for firing, after firing, the sword spine can be made in batches, and then the composite sword can be made in batches to form a streamlined operation.

A group of craftsmen gathered by the red deer listened carefully to Ding Qi's explanation of the new weapon, and from midnight until ten o'clock in the evening, he didn't even eat until everyone understood the production principle of the composite bronze sword.

As long as this problem is solved, the tribe's force value will have a qualitative leap.

The moonlight was bright, and everyone didn't even beat the torches, and walked straight towards the cafeteria. Lu arranged for the barbecue master chef in the canteen to make stir-fried vegetables and fish soup, accompanied by some fruits, as dinner for their group.

Everyone talked so much that they forgot to eat while chatting. If it weren't for the deer urging on the side, it is estimated that they would continue to talk.

After the meal, Ding Qi asked everyone to go to bed quickly and get up early tomorrow to continue the discussion together. Unexpectedly, the next day, Ding Qi actually ran to the ash kiln with his animal skin mat to live with everyone, and swore that he would not go back to his house to sleep if he could not make a composite bronze sword.

However, his idea was misinterpreted by everyone, and everyone thought that Ding Qi was kicked out of the yard by a deer.

"Chief, was you kicked out last night because you didn't work hard?"

"Don't be afraid, Chief. That's it for women, hang them for a few days and they'll know about us! ”

Ding Qi spurted out a mouthful of old blood, and was so angry that he threw the two talkers directly on the roof, and warned them that they don't need to grind their butts back and forth on the roof twenty times, then don't come down!

For five days in a row, Ding Qi and the red deer ate and lived together, and the fire in the ash kiln was never extinguished. They made different sword molds and cast composite bronze swords in two formats.

In the early days, due to the problems of grasping the proportions and designing the sword mold, the bronze sword produced was uneven in thickness and had many defects, and it had to go through multiple polishing to complete a sword. However, when he slashed with the Ugin knife that was the subject of the test, it was split in less than five strokes, which really made Ding Qi's heart cold for a while.

But he was not discouraged, and started small first, making a good pottery mold, ensuring that each pair of pottery molds is perfect, and each pottery mold can be combined to make an identical bronze sword.

Subsequently, Ding Qi made a more refined balance and made some weights from bronze as a weighing tool to ensure that the ratio of copper to tin met the target requirements.

During this period, the meals of this group of people were prepared by the canteen, and the barbecue master personally delivered them. And the deer came twice, and finally after he couldn't stand the jokes of this group of men, he never set foot in this area again.

Finally, after many trials, the first batch of composite bronze swords in two formats was officially released. After being polished and refurbished by craftsmen, two standard bronze swords were introduced. It is called a wide sword and a narrow sword, but in fact, the difference between the two is only two centimeters.

Two swords were made, first the two swords attacked each other, and after slashing each other more than twenty times without any change, they took turns to attack the reference Ugin sword.

After surviving thirty-five and thirty attacks respectively, the rift finally appeared, announcing the end of their mission. And this result made all the craftsmen present cheer.

Ignoring the ashes and sweat on their bodies, they hugged each other, and finally lifted Tinchi up and threw him into the air as a way to express everyone's gratitude to him.

They witnessed the birth of the composite bronze sword, and without Ding Qi, they would not have known that there was such a casting method. Even if you know, it will take more than ten or even dozens of generations of efforts to know this casting method.

That's why they're so excited and happy!