Zhang Ran has also seen a lot of those YY networks.

Whenever I see those pig's feet going to the sky as soon as they cross it, and all kinds of big people worship and be willing to be dogs' legs when they see the pig's feet, in Zhang Ran's opinion, it is an extremely forced behavior.

However, looking at Gai Heiliang's back, thinking that such a great god was trained by himself like a gray grandson, not only did he not get angry, but he admitted his mistakes again and again......

Zhang Ran found that he was actually a little scared!

This is special, a little bit of a small achievement, and it's floating - this is not a good habit, you have to change!

Zhang Ranxin said, while asking people to quickly find Xu Kunjun.

He didn't tell Gai Heiliang that he had asked Gao Jin and others to buy a rifling machine tool.

It's not that I deliberately concealed it, but Gao Jin said it when he heard this, they are smuggling arms, and they are not professional in machinery, on the other hand, this kind of machinery is difficult to find!

Even if you can help the detachment get it in the end, it is estimated that it will not be a matter of time and a half!

In other words, the lathe of the rifling line has to be engaged, but Zhang Ran can't always count on Gao Jin them!

In case it would take a year or two for Gao Jin and others to get the rifling machine, would the detachment have to wait until then to make guns?

At that time, the little devils had already scourged the country's fathers and fellow villagers enough, and they were already going downhill, and when the time came, the detachment would rebuild guns to clean up the little devils, what was it?

Fight the Reservoir Dogs?

Of course, beating the water dogs is also relieving, but after all, it is almost that interesting!

There has always been only one best way to open revenge, and that is to knock on the head with a stick when the enemy is the most arrogant and proud!

What Zhang Ran wants, that's it!

Moreover, he also wants the rifle made by the detachment to become the first self-made rifle in the history of the Eighth Route Army's military industry - there is not much time left for him!

Because at the moment, the Eighth Route Army is already developing and manufacturing its own rifles!

According to the historical time, a few months ago, Liu Guifu and others from the Huangyandong Arsenal were already developing rifles - that is, the anonymous horse rifle that was later named the New 79 Rifle.

It's just that Huangyan Cave is developing rifles, but many of the initial rifle failures do not have a long service life, and they can only be a spectacle.

It was already forty-one years since the new 79 rifles were really manufactured and mass-equipped into the Eighth Route Army!

What Zhang Ran hopes for is that the rifles made by his detachment will not only be made earlier, but also of good quality, with fewer failures, and equipped to the team faster to play a role in the battlefield against Japanese invaders!

All this made it impossible for him to continue to wait for Gao Jin to find a way to get the machine tool of the rifling wire, he had to figure it out by himself first!

Figure it out by yourself, then there will only be the soil law on the horse!

For more than a year, the detachment has been working on various machinery - for example, making stamping machines, forging machines, and so on from stone grinding discs and simple transmission tools......

But these are just extremely crude mechanical tools, and tools like this one's bore are not so easy!

The barrel bore is so long, and the diameter is only so large, it can be regarded as embroidered on the tip of a needle!

If it was before, Zhang Ran was afraid that he wanted to get on the horse, and with his three-legged cat's kung fu, he wouldn't be able to do it!

But now it's different!

This time, the detachment not only brought back a baby bump like Gai Heiliang who can make weapons, but also brought back Xu Kunjun, a mechanical expert!

With Xu Kunjun here, Zhang Ran felt that it should not be a big problem to put forward his own idea and then hand it over to Xu Kunjun to use his mechanical knowledge to materialize!

The size of the fighter is not small, and in case it is saved, it will have to be tested and so on, which requires a huge field.

Therefore, the detachment specially carved out a place for Xu Kunjun at the location of Dengjiaping, about three or four kilometers away from the team headquarters, and used artificial labor to dig a big cave on the mountain as a workshop.

At this moment, Xu Kunjun was taking a group of clever young men he selected to work on the wreckage of those fighters in the workshop, and outside the entrance of the cave that was used as the workshop, there was a large area of flat land.

In order to hide the target, not only has the flat land not been leveled, but it has not been paved with asphalt and other things as a runway, but a large number of villagers have been mobilized to manually transplant a lot of tall trees around the flat land, so that after the runway is laid in the future, the runway can be hidden in the shade.

Hearing Zhang Ran's invitation, although Xu Kunjun was reluctant to delay his work, he still followed the herald and hurried back to the team headquarters.

Hearing that Zhang Ran wanted to help solve the problem of rifling machinery in the barrel of the car, Xu Kunjun was also a little blind.

It's true that he's an expert in mechanics, but he doesn't have any idea of how to make a machine out of thin air!

Zhang Ran's smile is unfathomable!

He has experienced the era of the big bang of knowledge and the era of highly developed science and technology, and it is nonsense to say that it is all up to him to solve problems, but to talk about concepts - there is probably no one better than him in this era!

He hadn't eaten pork, but the pig ran, and he had seen a lot!

Zhang Ran's idea is simple!

Fabricate a runner similar to a grinding wheel with a rifling depth about the size required for the barrel bore, and use high-speed rotation to achieve the purpose of the car's bore.

"But the rifling is curved, not straight!"

Xu Kunjun immediately put forward the most difficult point - the straight line is easy to say, but the curve is ......

It is not easy to control such a small machine to cut according to a predetermined curve at any time!

"It's easy!"

Zhang Ran waved his hand, indicating that the internal cutting of the grinding wheel similar machinery can be fixed, forming the curvature of the rifling curve, which is completed by external control!

When he said this, Zhang Ran didn't forget to hold a wooden stick for a drill!

The stick moves slowly, with extremely subtle twists as it moves forward......

The problem of the formation of rifling curvature can be considered to be solved.

But Xu Kunjun still has a bitter face - the internal space of the barrel is less than a centimeter, and it is too difficult to make a machine to cut in such a space!

"XCMG, I think you can think about the construction of the electric motor!" Zhang Ran reminded!

The principle of the motor is to use the current through the coil to urge the shaft to rotate and achieve, Zhang Ran thinks, if Cheng Dongshan Cui Sanyuan and their second workshop can make a small enough bearing, the use of the principle of the motor, may not be feasible!

"Captain, you're such a genius!"

Xu Kunjun's eyes lit up when he heard this, and he gave Zhang Ran a thumbs up and said: "It's also thanks to the fact that our country is poor and weak, and there are almost no industries of all kinds, if our country has the same industrial level as the European and American powers, with your level as the captain, there is nothing to do with Edison......

Zhang Ran, who was drinking tea complacently, heard this sycophant, and a mouthful of water squirted out of his nostrils......

This is special, I like to pat myself on the back, but there has to be a limit - if Edison heard it, how could he be embarrassed!

The key is that Zhang Ran can't explain it yet, and he can't tell Xu Kunjun that he just watched pigs run a lot......

I can only bear this sycophant, and I have to wave my hand with a high-spirited face, and say lightly - I am just thinking about it, and it depends on XCMG whether it succeeds or not!

"You can come up with such a groundbreaking idea, captain, you are really amazing-it's a pity that the country is troubled internally and externally, captain, you were born at the wrong time......"

Xu Kunjun looked regretful, with such a talented talent, but because he was born in this era, he could not promote the development of the country's industry, and he went sadly......

Zhang Ran was a little embarrassed, and extremely embarrassed, compared with Kang Ting and others, he was doubly satisfied with Xu Kunjun and Gai Heiliang!

This is special, people are so capable, so humble, and speak well......

And Kang Ting, these guys, will fight a battle and have their tails cocked all day long, and even girls who used to be interesting to themselves dare to rob ......

Zhang Ran is sad and angry!

What is even more sad and angry are the blacksmiths Niu Da and Cheng Dongshan.

Because a large number of chicken buses are now used for transportation, the bearings of the detachment are produced every day, and the technical level in all aspects is already pure.

But the problem is that the bearings needed by the machinery to make the rifling of the barrel are smaller than the fingernails!

Even Xu Kunjun has already said that if necessary, the bearings needed in the future may be half smaller than the bearings required now!

Thinking about such a small bearing, you have to take into account the strength that the bearing must bear and the difficulty of the process, Niu Da and Cheng Dongshan almost cried out......

But even though they knew that it was difficult, the two of them still immediately threw themselves into the work, and did not rush down to find trouble with Zhang Ran.

Because they knew that this bearing was made because the detachment needed it, not that Zhang Ran was deliberately trying to toss them......

Since it is a need, no matter how difficult it is, it must be overcome!

All kinds of work in the detachment are in full swing, and the exercises in the county are also in full swing, but Zhang Ran is idle here.

But Zhang Ran, who was idle, had to pretend that he was very busy every day......

Because recently, Deng Ying went to him if he had something to do!

Deng Ying is such a beautiful big girl to her side, of course Zhang Ran is happy to see it, the problem is that every time Deng Ying is around, Zhang Ran can see Deng Fang's murderous eyes......

So he could only pretend that he was busy, so he was tired enough - pretending to be busy, even more tired than he was!

Go to the back mountain, there are professionals such as Xu Kunjun, Gai Heiliangniu, Dacheng Dongshan and others, he can't help at all, so let's give some advice on the side...... In this kind of aspect, which does not require constructive opinions and only practical opinions, he is not good at it, so he is often greeted by a group of people with the expression of "Are you stupid"!

This made Zhang Ran's self-esteem suffer a blow, and he was no longer willing to go to the back mountain, and the secret penicillin laboratory in the hospital became a place where he often appeared.

It's a pity that the cultivation of this penicillin bacterium is not a matter of time and a half at all, and I can't see the reason for staring at it......

The team site can't go back to ......

So he could only brave the wind and snow, and the detachment was running around, and in the expressions of a group of villagers and soldiers who were pitying you to see how busy the captain was, they were miserable......