For a gun, the most difficult parts to manufacture are actually two parts, the first is the bullet, and the second is the barrel.

Both of these things have extremely high requirements on materials and processes. For example, the high-strength alloys and propellants required to make cartridge cases cannot be provided in this era.

Although Lin Xu is a hard-core science and engineering man who is proficient in materials and chemistry, it is difficult for a clever woman to make a meal without rice. Due to the limitations of the times, he cannot make a small bullet!

However, he still had a way to solve this problem, which was to make a long-barreled gun and use black powder to fire solid projectiles. Although it was less powerful, it still worked.

However, the barrel is unavoidable no matter what!

When manufacturing gun barrels, common mold casting processes cannot be used, because the barrels manufactured in this way will inevitably have bubbles and are very easy to explode, thus posing a great safety hazard to the user.

In order to ensure quality, cold forging must be used for manufacturing.

To put it simply, it is to use a drill to hollow out a solid steel pipe.

If you want to use a drill to hollow out a solid steel pipe, it is obviously impossible to rely on manpower alone. Even Zhang Lie is not that strong, and if you use manpower, the accuracy cannot be guaranteed!

In short, if you want to manufacture the barrel, you must use a machine tool!

During the two months he stayed in Hangzhou, he would draw some parts drawings and three-view drawings of basic machine tools whenever he had time. Over time, he finally drew several commonly used basic machine tool drawings.

Of course, the machine tools he designed are far from being comparable to those high-precision machine tools in previous generations. They are not even a beggar's version, but can only be regarded as an extremely simplified version!

This is really a last resort, because the creation of a high-precision machine tool is not just a matter of proficiency in any discipline, but the result of the flourishing of many basic disciplines!

In addition, he did not have electricity to provide power, so he had to borrow water energy.

Lin Xu was too busy and did not have that much time or energy to tinker with the machine tools in detail. Besides, he only had theoretical knowledge and his actual practical ability was very average. Once the drawings were drawn, he had to find someone with strong practical skills to implement them.

Therefore, after drawing these drawings, Lin Xu first showed them to his uncle Zhang Lie.

Machine tools are mainly made of steel, and Zhang Lie is really good at steel smelting and is also very interested in this industry. It is just right to find him to implement it!

However, Zhang Lie also has a big shortcoming, that is, he is unwilling to use his brain and only likes to use his hands!

After briefly looking through these drawings, Zhang Lie immediately became overwhelmed and had no intention of conducting in-depth research.

So, Lin Xu set his target on Gensheng again!

Although Gensheng is a carpenter, his daily work of making tables, chairs, spinning wheels, etc. is similar to making machine tools.

In addition, according to his observation, Gensheng has extremely strong comprehension and practical abilities, and he is also a person who is very willing to learn and study!

Moreover, there is an even more important point, that is, he knows the roots thoroughly. He is a completely reliable person!

Such an important technology in machine tool manufacturing must be taught to someone you trust!

Originally, when he came back from the county government this time, he wanted to give these drawings to Gensheng and let him study and study them first. However, Gensheng was seriously injured by Liu Zhuzhu!

Therefore, he postponed it for a few more days.


Chapter completed!