In fact, Chen Xian can completely reprocess the nuts brought back from the automobile toolbox into plate teeth and process bolts into taps.

This is actually very simple, on the inner surface of the nut and the outer surface of the bolt to repair some grooves for stripping, after carburizing and quenching treatment, strengthen the hardness, and finally put a wrench on the reworked nut bolt, which is a simple pair of plate teeth and taps.

But this method is not sustainable, the tap and die itself are consumables, and the bolts and nuts he brought will soon run out, because of wear, the threads processed by the taps and dies will always be shallower than their mother machine, and after several generations, Chen Xian will not have the plates and taps that can be used.

Chen Xian needed a tool that could process screws from scratch.

The second method of modern processing screws is a thread rolling machine specializing in mass production of screws, which is even more unreliable, Chen Xian has only heard of this kind of thing, never seen it, and does not know the working principle, let alone use the technology of the Song Dynasty to copy.

The third method is a lathe, if you want to have a lathe, Chen Xian can not only use it to produce bolts, nuts, and even use it to produce taps and dies, and then use simple taps and dies to produce screws, but you must first have a lathe......

Yes, the problem turned around and came to the lathe again......

In the end, Chen Xian had to temporarily abandon this idea of improving armor, because even if he could follow this line of thought, it would never be possible to achieve it in a short time, and equipping his teenagers with armor was already an urgent task.

What to do?

Chen Xian can only change his thinking and find a solution from history.

In the end, Chen Xian targeted a kind of armor that prevailed during the Ming and Qing dynasties, "cloth face armor".

The cloth armor is the predecessor of the cotton armor, and its surface is a thick cloth with iron armor plates on the inside of the vital parts.

The inner lining of the cloth armor is much larger than the iron plate of the armor, and the copper nails are riveted on the cloth surface, which is far easier to make than the armor, and it is a cost-effective armor.

At the end of the Ming Dynasty, on the basis of ordinary cloth armor, the Manchu people filled the cloth with cotton pads that had been watered and beaten, which not only improved the defense of the armor, but also kept warm, and became the so-called cotton armor.

Since there is no time to improve the armor piercing process, this simple process and easy to produce cloth armor has become a better over-the-top choice.

With this idea in mind, Chen Xian personally designed a simple set of cloth armor.

For Chen Xian, who makes money by restoring ancient armor, it is not difficult to design a set of cloth armor with a simple structure, easy to wear, and not low defense efficiency.

The cloth armor he designed was divided into five parts.

The first part is the loose waistcoat on the upper body, which looks like a very loose thick linen garment, with some large armor pieces riveted with copper nails on the inside of the garment.

In order to protect his arms, Chen Xian also designed some lobster-shaped semi-circular iron pieces on the arms of this horse coat, which were pressed and riveted on the outside of the sleeves of the cloth armor to form arm armor to protect the arms.

At the front of the sleeve of the coat, the back of the wearer's hand, there is also a dog's tongue-like thing, in which there are not only some small armor pieces hidden, but also some ropes underneath, with which the wearer can fix the dog's tongue on the back of the hand to protect the hands.

The second part is the skirt of the lower body, which is divided into three pieces, the left and right leg guards, the front crotch guard, and the skirt hangs down to the knee.

The third part is a neck guard used to be attached to the hat underneath, this neck guard, Chen Xian imitated the style of the Qing Dynasty armor, hanging from the hat, wrapping the back, left and right sides of the head, and two pieces stretched out in front of the neck can be connected with cloth straps to protect the neck.

In order to install the neck guard, Chen Xian planned to rivet two iron rings on the brim of the apprentices' hats, close to the head, to serve as a platform for installing the neck guard.

The fourth part is the left and right shoulder pads, which can be fastened with several straps and cable ties reserved on the upper body vest.

The fifth part is the combat boots, which are also made of thick linen, except that some iron bars are embedded in the boots to protect the user's calves and instep.

Before leaving Zhuangzi, Chen Xian had people find a few tailors in Zhuangzi and handed over more than 30 pieces of cloth armor to them to make.

In the past few months, Chen Xian has ordered two sets of work clothes for each of the apprentices in the shop, and has successively made hundreds of clothes, for the tailors, he is already the third largest customer in Dongzhuangzi in addition to Yang Bai, and the tailors dare not slack off on the orders of his big customers.

When they got the pattern, some of the tailors were surprised, some shook their heads, and some were amused, but none of them connected the clothes with the armor.

After handing over the patterns to the tailors, Chen Xian emphasized that in order to keep them warm and strong, the clothes must be overlapped with ten layers of linen, and then sewn with horizontal and vertical stitches to be used as the base material.

……

The cloth can be handed over to outsiders, but the inner lining of the armor cannot be faked by other people's hands.

In order to speed up the production efficiency of cloth armor lining nail pieces, before Chen Xian left Zhuangzi, he drew a drawing of a handmade crank drill and iron sheet scissors, and handed them to Zhang Bai and Yang Xiaoyi, asking them to make things as soon as possible.

……

After personally trying it out and confirming that the crank drill and iron sheet scissors he designed were ideal and fully achieved the intended purpose, Chen Xian immediately dispatched people to start making the nail pieces of the cloth face armor.

Because of the different connection methods, the cloth armor can be made very large compared to the armor, and Chen Xian designed several different specifications of the armor.

The large one, ten centimeters long and five centimeters wide, is almost the size of a palm, such a large nail piece cannot be used to make a nail piece, as we all know, the smaller the nail piece, the more flexible, the larger the nail piece, the more clumsy it is.

The smaller one, five centimeters long and two centimeters wide, is used to line neck and shoulder pads.

There are also long strips of armor for arm guards, and thin armor pieces of one centimeter square for hand guards.

……

Just when Chen Xian was writing materials silently at night, revising teaching materials, busy educating and training apprentices during the day, and directing apprentices to improve the production process of nail tablets, Bai Anfu came to them again.

Chen Xian received Bai Anfu again in the reception room, and from the joy on the other party's face, it was not difficult to guess that the Bai family had agreed to Chen Xian's request to send some apprentices to his shop.

But Chen Xian's heart did not relax because of this speculation, because he knew that from this moment on, he would have to walk a tightrope in the gap between the two Baiyang families, whether it was the Bai family or the Yang family, they could do something to him at any time, once they decided to do it, whether it was the Bai family or the Yang family, they would never care about a few undercover teenagers from the bottom side.