According to previous experience, many plastic products now look very good, but they don't fall, once they accidentally fall to the ground, they either break or drop a piece of meat.

Li Shan took the water gun and looked at it carefully, but saw that there was really no problem on it, and then looked at a few plastic water guns over there, if it really fell directly to the ground like this water gun, I am sure what would happen.

Okay, that's it, this water gun is exactly what you need.

So, Li Shan didn't say anything more, and paid directly.

Next, he walked around the supermarket a few more times and bought all the other accessories he needed.

As soon as he got home, he closed the door of his house and officially began his gun-making business.

In order to avoid being disturbed by his family, he said that he was going to study for the exam on his own and bury himself in his homework.

Li Shan first removed the white water cylinder on the water gun that was used to store water, and it seemed that it was not needed for the time being.

Immediately after that, he unscrewed a few screws on the gun, so the gun was broken in half, and the excess was removed from the gun, leaving only the gun part, and the next step was to load the laser into the water gun.

He first disassembled the switch part of the laser, led out two wires from it, connected the positive and negative poles of the battery respectively, and then removed the switch from the damaged flashlight, connected to the two wires, and glued it with the board machine on the water gun with super glue, so that the laser could be emitted by directly pulling the board machine.

He put the laser in the barrel of the water gun and temporarily fixed it with plasticine, so that the general configuration of the inside of the laser gun was basically determined, and then it was a question of how to fix it firmly.

According to Li Shan's design, he went to the factory to find an acquaintance to help, and drilled a few small holes in the gun body with a water cutting machine, which was used to screw in the screws of the corresponding size, so as to fix these devices in the gun body, and finally poured glass glue to fill the gaps inside, on the one hand, these devices can be fixed, and on the other hand, its unique elasticity can also play a role in shock absorption.

For the sake of insurance, Li Shan also designed and installed a set of power-off switches at the tail of the gun body, which is used to control the connection and closure of the line.

In addition, Li Shan bought a miniature laser pointer on the Internet, which can emit red points of light, and installed it at the upper end of the laser emitter to use as a calibrator for the laser gun.

In this way, the center of gravity of the whole gun was obviously a little closer, so he specially stuffed some gravel into the gap between the handles, and finally fixed them all firmly with hot melt glue.

In this way, the laser gun has been largely modified, but it still cannot reach the level of use, and there is still a key and important link missing, which is debugging.

Because with the laser gun currently formed, the laser shot does not know where it will shoot, and the direction of the calibrator and the laser is not consistent, according to Li Shan's assumption, the red light point of the calibrator points to where the laser should be shot, and it seems that this is not possible at present.

In order to complete this kind of debugging, it is necessary to constantly test fire and adjust, and this kind of work cannot be completed at home, and it is impossible to make holes everywhere in the house.

Commissioning can only be carried out in an open and unoccupied place.

The last time Li Shan tested a laser, it was almost completed because of an accident that night, which forced him to find another place.

Now there are people moving around the city, and it is not the best place for commissioning, but only in the Qinling Mountains in the south of Chang'an City, where there are few people, it is an ideal place.

Although Li Shan hated not being able to use this laser gun right away, he couldn't do as he wished because he hadn't completed the final debugging, and he could only really use it after he went into the mountain on the weekend when he was free and completed the debugging.

Li Shan looked at the laser gun in front of him, which had basically taken shape, and he was still a little apprehensive in his heart, and he didn't know whether it was right or wrong to transform this laser gun, and whether it would be that he had opened Pandora's box, right?

Ignoring that, he flipped a switch on the right side and turned on the calibrator, only to see a red dot appear on the wall where the muzzle of the gun was pointed.

He half-crouched, holding the gun in both hands, imitating the movements of the gunmen in the movie, turning his wrist to move the laser gun in his hand, and as the laser gun moved, the red dots shot by the calibrator on the gun fell on one object after another.

Li Shan's mouth made a sound of "pop, pop, pop" from time to time, feeling that he was so confident at the moment, and there was a kind of pleasure that everything was under control, this feeling was something Li Shan had never had before, and this feeling of being able to control one's own destiny was really - great! Hei San, Erqing and the others, you had better not meet me, otherwise ...... , Li Shanyin smiled sympathetically.

The busy week finally passed, on the weekend, according to the prior plan, Li Shan was going to go into the mountain to calibrate the laser gun, he went out to look at the gray sky outside, thinking that the haze was still relatively bad these days, and he didn't know if such weather conditions would have an impact on the laser, and he couldn't be sure, so he put on a mask and went out.

According to the instructions on the Baidu map, you need to take the subway to the end first, and then transfer to the Huanshan tour bus at the Chengnan bus hub station in the southern suburbs to the foot of Qinling Mountain, and then take a black bus directly to the entrance of Hongqing National Forest Park.

Li Shan did not buy a ticket to enter the forest park like other tourists, he carried a backpack around the main entrance of the park, and walked along the fence on the left side of the park towards the depths of the mountain.

Li Shan himself doesn't have a clear destination, he just thinks the place is suitable.

He continued to walk for about an hour, and at this moment he had come to the depths of Qinling Mountain, where there were grass and trees everywhere, and some of the mountain roads that might have been stepped on by nearby mountain people or donkey friends were not seen now.

The trees here shade the sky and the sun, and when you go deep into it, you can only feel that the scene in all directions is the same.

Fearing to get lost, he would sometimes use the knife he carried with him, or carve a mark on a tree, or place a stone on the ground, so that he could find his way back.

He didn't dare to be sloppy when he did this, because he often heard on the news that some people traveled in the Qinling Mountains in order to pursue excitement, but in the end they lost their way and stayed in this mountain range forever.

There was still a thin green mist in the depths of the forest, and the sunlight passed through the cracks in the trees between the fog, like pillars of light falling from the sky, falling jagged shadows.

Since he had never been able to find a suitable place, he had been carefully navigating through the mountains and forests.

As he was walking, there was the sound of a stream flowing in his ears.

Li Shan followed the sound to a small stream, only to see this crooked stream, slowly flowing into the distance. The water of the stream is clear and you can see the fish. The bank of the stream is pebbled and moss-stained. The woods on the shore are lush and green pines.

The river has fresh air and a wide view, and as far as the eye can see to the end of the river valley, coming here from the gray city, for those who live in a noisy city, it is impossible to breathe to feel the embrace of nature so kindly.

This is it!

Li Shan was very satisfied with the environment here, he put the backpack he was carrying on the ground and took out the prepared items one by one.

Li Shan has no experience in how to debug lasers, and he can't find relevant information on the Internet, but he has found a lot of debugging methods for ordinary guns. The bullet fired by an ordinary gun, due to the gravitational pull of the earth, is not a straight line but a parabola, and for the laser emitted by the laser, it is a straight line, so there is nothing to learn from the debugging method of ordinary guns.

That's something you need to figure out for yourself.