There was no way, Li Xiang had to print an ordinary small machine tool, fortunately, the strength of metal materials in the Southern Song Dynasty was not high, even ordinary drill bits were enough to deal with it. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

It's just that Li Xiang is concerned about the printing materials in the super 3D printer, and it turns out that you can't print anything if you want to, you must have printed materials to print. Generally speaking, these printing materials are either in liquid or powder form, and there are of course several printing methods.

The first is to deposit the printing material into layers, which is to continuously extrude the material from the printing nozzle, the material in powder or liquid form, and use laser or hot air to achieve bonding, such as laser melting powdery metal, stacking layer by layer into a designed shape, this technology is also called additive manufacturing.

Another is to bond raw materials together, using lasers or adding adhesives to the raw materials.

Therefore, the raw materials for printing are important, and without them, there is no way to print things. For example, to print concrete buildings, it is necessary to have cement, sand, water and additives, which can be mixed into a gelatinous substance in the processing center of the super 3D printer. The metal material must be processed into ultra-fine powder in the processing center before it can be used for 3D printing.

Fortunately, materials can be added, Li Xiang breathed a sigh of relief! It's just that in this ancient period, it was not easy to get some rare materials, and ordinary copper and iron were no problem. Like plastic or something, there's no way around it.

In any case, let's start with the basics, with this small machine tool, you can manufacture a lot of machinery and equipment, and slowly develop the industry of the Great Song Dynasty.

The next day, Li Xiang found someone to pull the small machine tool to the artillery production yard.

Li Xiang's officials and craftsmen were dumbfounded when they saw this machine tool.

Zhang Shijie said curiously: "My lord, what kind of machine is this?" Is it the first time I've seen it? ”

Li Xiang said with a smile: "This machine is called a processing machine tool, and I designed it. It has many kinds of machining functions, which is very useful in the manufacture of our artillery, including the fire ladle process equipment. You see that this part of turning the rotating workpiece with a turning tool is called a lathe, and the corresponding processing can be carried out on the lathe with drills, reamers, reamers, tap tools, etc. For example, our tiger squat gun, some of the parts, using this lathe to process, the accuracy is higher, the yield will be greatly improved, more importantly, with this machine tool, it can make a lot of mechanical parts that can not be manufactured before, very easy to process. ”

Zhang Shijie said excitedly: "My lord, is this machine really so good?" What an eye-opener! Xia Guan had only seen carpenters use something called a carpentry bed to make furniture before, but I didn't expect you to be able to make such a machine tool, I don't know how many times stronger than the carpentry bed! ”

Among those craftsmen, there are also people who know the goods, and when they hear Li Xiang, they know that this thing is very useful, and they are all excited.

Li Xiang said with a smile: "Okay, now I only have one machine tool here, so I want our craftsmen to imitate this machine tool to make more machine tools, and then we want to get a machining workshop, just use these machine tools to process parts, and then, there will be a heat treatment workshop, assembly workshop, etc., such a processing method, called a flow production line, and when we have an assembly line, we can produce artillery and rocket artillery in large quantities, which is ten times stronger than our current handicraft workshop!" ”

When Zhang Shijie heard this, his eyes lit up, and now he knew why the emperor didn't let him be the chief envoy of the artillery courtyard, it turned out that Li Xiang, the chief, was really powerful, but he was far from being able to reach others!

"My lord, the humble position is now convinced! Okay, let's organize skilled craftsmen to copy this machine tool! Our artillery yard must strive to be the first in the Great Song Dynasty! Zhang Shijie looked at Li Xiangdao with admiration.

Li Xiang Zhengse said: "Our craftsmen have to start from the most basic theory, in order to be proficient in the operation of these machine tools, I have "machining technology", "engineering materials", "tolerance and fit", "engineering mechanics", "mechanical drawing", "machine tool maintenance and maintenance" and other basic and professional theories, I have found someone to print out. The requirements of the official are as long as they can understand the drawings and complete the processing according to the requirements of the drawings in the near future. ”

Zhang Shijie said: "My lord, this is really good! With long-range weapons such as artillery and rocket artillery, those old-fashioned long-range weapons in our ordnance supervisor can almost be eliminated! ”

The rest of the officials were also excited, the scene of the tiger squatting cannon test, they had all experienced it, and the power of the cannonball was much stronger than today's bed crossbow or something.

Li Xiang laughed and said, "Our mission is to let guns replace crossbow arrows!" So everyone should work hard! Although it is said that our Great Song Dynasty's long-range crossbow has reached its peak, its power is still relatively limited. For example, the bed crossbow was developed on the basis of the winch crossbow in the Tang Dynasty. It is the combination of two or three bows that greatly enhances the tension and strength of the crossbow. When the crossbow is opened, the crossbow string is connected to the winch with a thick rope, and the soldiers shake the winch, open the crossbow string, and install the giant arrow, and when it is fired, the soldier must slam the trigger with a sledgehammer, and the machine will shoot the arrow into the distance. ”

Hearing Li Xiang talk about the bed crossbow, those officials and craftsmen were shocked, they didn't expect that this newcomer, an eighteen-year-old Tanhualang, actually had a deep understanding of crossbow arrows!

How did they know that the young chief in front of them still lived in a super 3D printer that was much bigger than the Yamen house! In the super 3D printer, these materials are also very complete, and the super 3D printer is also a supercomputer.

At this time, Li Xiang was talking according to the information provided by the super 3D printer!

Li Xiang also admires the craftsmen of the Great Song Dynasty very much, it is not easy to be able to make the pinnacle long-range weapons of the Cold Weapon Era in ancient times! There are eight types of bed crossbows that use compound bows recorded in the "General Essentials of the Martial Arts", which can be divided into two categories according to the strength and range of the crossbow. One is a double-bow bed crossbow, which is equipped with two bows, which are placed at the front and rear of the thick crossbow arm, and the two bows are placed opposite each other, when firing, first use a thick rope with hooks at both ends, hook the crossbow string at one end, hook the shaft of the winch at the other end, and then twist the winch with five, seven or more than ten warriors together, open the crossbow string, buckle it on the teeth, and the crossbowman who is in charge of loading the arrow installs the crossbow arrow and aims at the target. When firing, the power of the human hand cannot pull the trigger, and the crossbowman in charge of firing must raise a sledgehammer and hammer the plate machine with all his strength, so the huge crossbow arrow will fly towards the enemy with a roar. These arrows are very thick, and the arrowheads are flat and chiseled, so they are called "chisel arrows", and the range is about 120 to 135 steps.