The next day, Yuan said goodbye to the Moon Chief, and set off with the exploration team to continue exploring to the south, maybe he will come to the Moon Tribe as a guest on the return journey, the Moon Leader is such an interesting friend, Yuan will not forget him.

Turning his gaze back to the residence of the Dragon Tribe, in just a few days, Su Yan led his clan to plant 3,300 acres of land, and the clansmen put into the work of building the city wall, and the work of building the city wall has been on the right track, at least Su Yan does not need to follow the command in person before the construction of the city wall is completed.

Su Yan carried with him an animal skin that recorded various things to do, listing various things such as building a city, making bows and arrows, making stone grinders, and making paper.

There are too many things, Su Yan doesn't have time to rest, so he picks the simplest thing to do first, from easy to difficult, and puts the most difficult thing at the end, and finally Su Yan chooses the item of "casting copper shield".

The copper shield that Su Yan wanted to cast was not a simple copper shield, but a copper shield with sharp spikes on the front.

The dragon tribe has a shield, it is a rattan shield, made of rattan, several layers of rattan superimposed rattan shield is light and has a relatively high defensive ability, but the rattan shield is easy to damage, as long as the rattan shield is in contact with the enemy's weapon or the claw of the beast in the battle, the rattan shield can block the attack, but it will also be damaged, if you continue to use the damaged rattan shield, the next battle may not be able to fully resist the attack.

It can be said that this rattan shield is a disposable/product, and it is okay not to use it, but it has to be replaced with a new one.

Although the weight of the copper shield will be heavier than the rattan shield, the defense of the copper shield is stronger than the rattan shield, and the copper shield is less easily damaged than the rattan shield, and can be used repeatedly.

And what Su Yan wants to do is not a copper shield, but an advanced product of copper shield - a thorny copper shield.

Both the rattan shield and the copper shield are only defensive weapons and can only be used for defense, but the spiked copper shield is different, the thorny copper shield is equipped with sharp spikes on the front, once the beast pounces, use the thorny copper shield to defend, while defending, the spikes on the front of the copper shield will also give the beast kill.

The spiked copper shield can be said to be able to attack and defend, suitable for hunting in the jungle, suitable for small-scale battles between tribes, if it is a large-scale battle, it does not matter whether the copper shield has thorns or not.

Wanting to cast a copper shield, Su Yan did not go directly to the smelting area, but came to a place called "Carpenter's Workshop" by Su Yan, this carpenter workshop is the place where the carpenters of the Dragon Tribe work, originally the carpenter workshop was in the residence of the Dragon Tribe, but the residence was a little crowded, so it moved outside, but with the construction of the city wall, the carpenter workshop is still in the residence.

Last year, the dragon tribe had five carpenters and ten carpenter apprentices, and now those ten carpenter apprentices are all considered to be masters, and the five "old" carpenters have brought a batch of ten apprentices, and the new carpenters are not qualified to take apprentices.

In fact, the skills of the "old" carpenters are not very high, and they will not be taught in a year compared to the apprentices, and the skills of the new carpenters are improving, and the skills of the "old" carpenters are also improving.

When he came to the carpenter's workshop, Su Yan found two "old" carpenters and asked the two "old" carpenters to make two shields out of wood according to his requirements.

One shield is round, two feet in diameter, and one is rectangular, three feet long and two feet wide, and each one centimeter (three millimeters) thick.

There are no large-scale battles for the time being, and shields don't need to be made too big, and smaller shields are more flexible to use.

According to Su Yan's instructions, the two "old" carpenters and two apprentices quickly cut out the two planks, yes, just a rectangular plank and a round plank, the front of these two planks needs to add spikes and the back needs to add handles, and the barbed wooden shield can be considered to be finished after adding these two things.

Although there are two more processes, there are no two "old" carpenters, from Su Yan to the carpenter's workshop to Su Yan's departure from the carpenter's workshop, the total time did not exceed one hour, Su Yan left the carpenter workshop with two wooden shields and headed for the smelting area.

The wooden model of the barbed shield was made, and the next step was to make a casting mold with these two wooden shields, almost all that was needed was to press the shield on the clay block, and then pick up the shield, and a shield casting mold was made.

However, there was a small problem when making the casting mold of the shield, Su Yan removed the three spikes on the front of the two shields and the handle on the back, leaving five transparent holes in the shield with the handle.

The spikes and handles of the shield can be added after the shield is minted, the spikes can actually be cast together with the main body of the shield, but the spikes may be damaged during battle, if they are cast separately, they can be replaced with new spikes after the spikes are damaged; The handle could not be cast together with the shield as a whole, so it was difficult to make such a mold.

With the presence of wooden shields, the casting mold is quickly ready, including the casting mold with spikes and handles, and after the casting mold is dry, the casting mold can be put into use.

Five second-type earth blast furnaces smelt copper ore together, a day can produce 65 catties of blister copper, the current blister copper output is enough for the dragon tribe to use, Su Yan has no idea of increasing blister copper production for the time being, and increasing blister copper production is not a trivial matter, it is necessary to first transfer more people to the copper mining area to increase the amount of copper ore mining, and then build a new earth blast furnace, and finally the blister copper output will increase.

The copper juice is out!

Pouring copper juice on the casting mold, soon, what Su Yan needed began to take shape, and speechlessly, most of the blister copper smelted today was used on these two copper shields.

Because of this incident, Su Yan suddenly thought of a very serious problem, and had been negligent about this problem before.

Blister copper is very heavy, although the main body of the two shields cast with blister copper is only one point thick, Su Yan calculated, the weight of the round shield should reach fifteen catties, and the rectangular shield should reach twenty-eight catties.

With the strength of the adult male clansmen of the Dragon Tribe, the heaviest rectangular copper shield can also be used, but this weight is too heavy to be used in battle for a long time, and the weight of the round copper shield is within the range of bearing.

If you want to reduce the weight of the copper shield, you can reduce the area of the main body of the copper shield, and the other is to reduce the thickness of the main body of the copper shield.

Su Yanxiang's head is big, the metal shield, especially the copper shield, is a pit, and the iron shield is better than the copper shield.

For the time being, he didn't plan to continue casting copper shields, Su Yan was going to put two copper shields, rattan shields, wooden shields, and animal skin-wrapped wooden shields in front of Zhi, and let Zhi, a warrior with rich combat experience, choose.

In fact, there is also a copper-skinned wooden shield, but the casting process of the dragon tribe is not yet at that level, so it's just a matter of thinking about it.