For later generations, one is to step on the string with your feet, and the other is to use threads to wind the string. For Xiao Niang, neither of these is suitable for her. Her power is too small. Yang Heng did not have to make a crossbow for Xiao Niang. But if you think about it carefully, this may be an experiment. It is also possible to use a bed crossbow. According to legend, the bed crossbow is always winding with the strength of a person's whole body, but if you use extra force, will the power of the bed crossbow be greater? Naturally, this is not something Yang Heng needs to study. As long as you create a small crossbow for Xiao Niang, Li Er will naturally think of the bed crossbow.

Yang Heng used the butt-type firing method of later generations, and even had three-point and one-line sights. Naturally, it was not the telescopic sight, but the sight of ordinary firearms. The crossbow body was fixed on the butt. The crossbow string was driven by a serrated mechanism, and there was also a pull rod with twenty times force on it. It only took less than ten times to pull the string up, and then put a pruning branch in the arrow groove. After aiming, you can shoot it out by pulling the trigger. Of course, there are many anti-accustom shot devices on it. This shooter can only pull the trigger when he presses his shoulder against the butt.

Yang Heng even designed a two-legged bracket separately. When shooting, he put the crossbow on the bracket and it can be easily operated. As for Yang Heng, he must now have an intermediary, that is, Xiao Niang, to make some willful requests, and then he will make one object after another so that it will not appear abrupt. If Yang Heng wants to play a crossbow, it would be too unreasonable. His strength is greater than his father, and what kind of crossbow is used. So, for a period of time, this young lady plays a catalyst.

There are also this bows and crossbows, but Yang Heng found that the pruning is not very at ease. The lethality of pruning is too small. Yang Heng decided to make special arrows. He planned to make arrows by turning sand, and then grinding them on the grinder, it turned into a suitable arrow, and then stuffed the arrow shaft into it. This is a suitable arrow. The shaft and wings are not easy to change. Even the crossbow used by Xiao Niang does not require wings. Because the crossbow uses the technology of guide rails, the function of the wings has been greatly reduced.

How to make grinding wheels? This requires you to find some sandstone first, then divide them into thickness, and then make them into round wheel shapes, then drill fixed holes in the middle, and then install them on the water axle. This is a grinding wheel machine.

In order to find the staff to operate this water truck, Yang Heng went to the market to buy some middle-aged men. People of this age no longer had too many ideas, so they could teach them some simple techniques at will. Of course, someone still needs to watch them to prevent unnecessary things from happening.

"Boy, this is the iron-tied bow you made. Why is it so ugly?" My father actually thought that the iron-tied bow was a bit ugly at first sight. This was the bow body carefully polished by Yang Heng, and even used a passivation treatment. He didn't want his father to let the other party avoid it when shooting an arrow. The shape of the bow body is the style of a compound bow. The bow string is hung as you use, otherwise it will easily collapse the bow string, and the elasticity of the bow body is reduced. This is determined by some special properties of steel.

Looking at the arrow again, it is also dark, but its tip is very sharp and even has three blades. Even if it is shot on some iron plates, it will shoot through the iron plate. However, if you want to ask how to use the pruning branch made by Yang Heng to shoot the armor he made, there is nothing to tell, you can try it yourself.

"One hundred steps." "Swish" a tree as thick as a bowl was shot through, and one hundred and fifty steps, and the same thing was still shot through, and two hundred steps, this time it did not shoot through, but it also pierced deeply into the trunk.

"Brother Heng, look at me, look at me, come and put up the rack for me." The little lady was very proud. Now she had weapons, and even had a special follower, who carried a crossbow and a rack for her.

"My lady, the crossbow has been set up, and there is no one in the distance, you can shoot." This is what Yang Heng stipulated. Maybe the little lady will not pay attention to things in the distance, but with her followers, you must observe the surrounding situation, otherwise you cannot shoot and do not hurt people for no reason.

"Come on, Arrow Branch." Similarly, Arrow Branch is also under the responsibility of the follower, which is also for safety reasons. Who knows when this child will get hot?

"Crack," the little girl put the string on the string. The unique sound of the booster lever was quite pleasant. Finally, after more than ten strokes, the little girl raised the string and then put a featherless arrow branch into the arrow groove. She also aimed carefully. With a "bang" sound, the arrow branch shot out like a lightning. The arrow penetrated out of the tree trunk above the first arrow shot by the father.

"Another arrow." "Ka," the little girl continued to mount the string, and the second "peng" shot out immediately above the position of the father's second arrow.

"The third one." It seems that Yang Heng's calculation is good. This crossbow is no worse than his father's bow.

"Boy, this is what you did. Even if a child can control it, it is really amazing." Although it is amazing, my father didn't have too many ideas. He can't take a child to the battlefield, and he wouldn't think of this matter elsewhere.

When the bows and arrows were made, Dad put them aside, and even the armor and the spear were put on. Dad meant that if he didn't participate in the war, he wouldn't take it out and use it. Naturally, these things were just a flash in the pan and did not attract anyone's attention.

But Xiao Niang is not like this. She practices shooting in a courtyard every day, and even after school, she can’t forget to practice a few times. Yang Heng had no choice but to guard her every time to prevent any accidents. While guarding, she also taught a maid who followed Xiao Niang a lesson.

"Shi Jian, I tell you, you must pay attention to this pruning. Xiao Niang has used one and gave her another one. Also, before setting up a crossbow, you must observe the surrounding environment to prevent someone from suddenly appearing out of unknown places. Even if there is no one, you must let the servants around you pay attention and not let people come in rashly." "Yes, follow the instructions of the young man." Shi Jian loves you, so it is naturally the name given by Xiao Niang. Follow her on the arch and the arrow, so naturally she will not give her any flowers or grass. So call Shi Jian, and slowly it becomes Shi Jian.
Chapter completed!