ps: The listing of the shelves may be delayed, and it may cost more than 300,000 words. For new books with a collection of tens of thousands of yuan, the daily recommendation of only 1,000 votes is not qualified.

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Tianling Continent.

Mo Mo found Shi Wu and asked, "Uncle Wu, how is the Flying Tigers training?" If the training is done, you can start looking for a base.

"We are currently training the blood-hoofed wild boars from Wild Boar Ridge. We hunt a few of them every day. We are not afraid of elite wild boars. We can hunt them all. The team members are rarely injured, but they just have to hunt them a little harder." Shi Wu trained the Flying Tigers according to Mo Mo's training outline. At present, the cooperation between the team members is very tacit.

In addition, they also train the reserve team according to the Flying Tigers' training outline, starting with the most basic queue.

"Well, we can try to find a base for a while." Mo Mo was happy. The Ruofei Tigers had not trained well, and they were not relieved that they went deep into the Twilight Forest.

The two chatted for a while and went to the carpenter's room to inspect the processing of the water truck.

In the carpenter's room, most carpenters were sawing wood and trying to process thinner boards, which was really hard.

Mo Mo was worried. If there was a cutting sawing and milling cutter, it would not be so troublesome; if there was no, he could only plan or saw the wooden boards slowly.

After seeing this, Mo Mo felt that his strategy was wrong and decided to concentrate personnel on processing the arrow shaft and making arrows first. A small number of carpenters continued to make parts of the waterwheel.

The bearings, three-claw chucks, optical axis guides, gear sets, belts, etc. he took from the earth, plus parts processed by carpenters and blacksmiths, were assembled into a simple lathe, called "arrow shaft lathe", which was specially used to fine-process arrow shafts.

The arrow shaft lathe is mainly composed of a power mechanism, a knife seat mechanism, a guide rail mechanism and a clamping mechanism, and the size is similar to that of a household sewing machine.

The power mechanism includes power input and output, consisting of bearings, belts, gear sets, etc., and the pedal is pressed with foot force to rotate the spindle (similar to the power mechanism of the sewing machine); the speed of the foot is converted to more than hundreds of revolutions per minute, which is enough to process the arrow shaft.

The knife seat mechanism is a miniature lathe that Momo bought online, the palm-sized one. The parts he removed, plus the parts processed by the carpenter, were assembled into a new small lathe; of course, the cutters were high-speed steel and carbide cutters he bought from the earth.

The guide rail structure includes optical axis guide rails and optical axis, each section is 10 cm long and can be connected to more than one meter long. The straightness is slightly worse, but at least it can ensure wear resistance and straightness. Without these, Mo Mo can only let the carpenter use hardwood.

The clamping mechanism is a three-claw chuck, tail frame, etc., which can clamp workpieces with a diameter of 35 mm.

Of course, the arrow shaft lathe made cannot be compared with the real lathe. The screws and bare rods of the lathe can't be made in another world.

Of course, its flatness cannot be compared with real machine tools, but the concentricity of the processed arrow shaft is at least much faster than that of manual tools.

The biggest problem is that the bed is too small and the torque is too small, so it can only be used for finishing the arrow shaft. It means that people can sharpen the arrow shaft into a rod shape before they can be put on the arrow shaft lathe. Otherwise, if the knife is touched and the obstruction is too large, the spindle will not be able to rotate.

In any case, with the arrow shaft lathe, Mo Mo solved the problem of coaxiality of artificially processed arrow shafts, and the efficiency of making arrow shafts was greatly improved.

At present, Mo Mo has assembled five arrow shaft lathes and taught workers how to use them. Carpenters are using them to fine-process arrow shafts with all their efforts.

Mo Mo and Shi Wu stood aside and watched the carpenter finish the arrow shaft.

As soon as the tip of the tool touches the high-speed rotating wooden pole, it immediately cuts out circles of slender wooden silk.

Mo Mo looked at it for a while and found some problems with the lathe, such as the bed weight is too light and the rigidity is poor, and the arrow shaft is long and deflected, even if there is a tail seat, it will still vibrate during processing, which will affect the accuracy.

"Mr. Mo, it turned out that one person had to work an hour to process two arrow shafts. Now, in less than five minutes, the efficiency is much faster and the quality is much better." As the head of the carpenter team, Wang Jianshu stood by and reported to Mo Mo and Shiwu. The concept of time is a new concept proposed by Mo Mo, and each supervisor was also assigned a watch.

By this calculation, one bed can process one hundred arrow shafts and five lathes a day, but in fact it is about five hundred arrow shafts a day.

Some time ago, the carpenter team had to distribute twenty people to process the arrow shafts, so that three hundred arrow shafts could be produced in a day.

Nowadays, only five people need to finish, five people roughly process, and five people assemble arrows to produce five hundred arrow shafts.

In contrast, mechanical processing is much faster than manual processing.

If you make a large lathe and water truck, you can directly roughly process the arrow shaft, and I believe the efficiency will be faster.

"Wang, prepare more arrow shafts. If hundreds of people train, they will have to 10,000 arrows a day. The bed is not enough. Install more, so you have to prepare more wood and prepare all the sheets and pieces." Mo Mo was also worried. His productivity was far from enough. This was only fifty or sixty people trained, and he didn't practice archery often.

Moreover, when practicing arrows, you usually practice half-full bows, and without arrows, and the arrow shaft can be used once without defects. If you are hunting, the arrows cannot be reused, otherwise it is easier to explode arrows and hurt people.

The Flying Tigers have 20 people, the Reserve Team 40 people, Shiwu, and 61 people in the military team. In fact, the logistics personnel need nearly 100 people. This is based on Mo Mo's cheating, transporting materials from the earth greatly improves productivity.

Mo Mo finally realized that national war is about fighting for logistics.

"No problem, Young Master Mo." Wang Jianlin nodded and replied.

Mo Mo looked for a while and then left the carpenter's house with Shi Wu and came to the blacksmith's house.

In order to isolate the fire source, the blacksmith house is built with stone and roofs, which are far away from the carpenter's house. It would be bad if the fire was caused.

Before the two of them could enter the blacksmith's house, they heard the sound of Ding Ding Dangdang.

When he entered the door, he saw several big blacksmiths busy. The three of them clamped the iron shaft more than two meters long and 70 to 80 mm in diameter with large iron pliers. The iron shaft was baked dark yellow; the other two men rode a large iron hammer and hit the iron shaft. When each round of hammered, the iron shaft immediately deformed.

Seeing that the iron shaft turned dark red, the blacksmiths pushed the iron shaft back to heat the furnace.

This iron shaft is what Mo Mo planned to use as a waterwheel axle.

In fact, ordinary water truck axles use wood or bamboo to make CD lines, but the speed is slower. Moreover, wood or bamboo is soaked in water and is prone to corrosion and wears quickly. If the speed is fast, it will not be able to withstand it, and the friction is very strong.

The axle is made of steel, which is highly rigid and can withstand high-speed rotation. If the bearing is put on, the friction will be smaller.

Seeing the axle heating, Mo Mo called Li Gang and called over.

"Brother Li, the steps of that shaft need to have a circular transition and not be easily broken. Now you will measure the diameter. Remember to be slightly larger than the bearing diameter." Mo Mo thought that the steps were difficult to grind out. If there was a lathe, the axle steps would be much easier. Now you can only forge them and then slowly grind them with a file.

"I already know how to use measuring tools, Carpenter Wang taught us." Li Gang said with a smile, but he was a little confused and asked modestly, "Mr. Mo, the shaft diameter is larger than that of that bearing hole, can it be penetrated?"

"It's okay if the shaft diameter is slightly larger than half a millimeter. If the bearing is heated, it will expand, the pore diameter will become larger, and it can be put in." Mo Mo couldn't explain to him the heat assembly and the interference coordination, so I can only say it more simply.

Li Gang nodded as if he understood.

Mo Mo was very helpless. Some time ago, he placed the shaft size on the ground at 1:1. He explained to the blacksmith for a long time before they understood how to do it.

Mo Mo also taught blacksmiths how to understand the steel color temperature meter. For example, if the steel is roasted to above orange, it can be forged only when it is between degrees Celsius. If it cools to below dark red (about 800 degrees Celsius), it cannot continue to forge, otherwise the steel will easily crack.

The blacksmiths just operate according to experience, but they just don’t understand the principles.

Mo Mo also taught them some knowledge about quenching, such as the influence of different quenching media, salt water, water or oil, as well as insulation time, when to quench, and the materials obtained are different.

Axles like this must be quenched after processing to ensure the hardness of the shaft surface. (Simply put, quenching means heating the steel to above 950 degrees Celsius, then put it in water or other liquid to cool it quickly to obtain a material with extremely high surface hardness. For example, the blades of steel knives used in households are all quenched, otherwise the blades are not hard enough, and the blades will be rolled up if they are cut off)

Mo Mo thought to himself that it would be nice for the blacksmiths to make a qualified axle in a month.

During the shaft heating time, the blacksmiths made bows and arrows, cast them directly with sand, and then forged and polished, and finally quenched to ensure the surface hardness of the arrows.

When Mo Mo came here, the blacksmiths first put down their work and asked him to explain the knowledge of iron and steelmaking. As an outsider, Shi Wu also listened carefully.

Mo Mo was a mechanical engineer in his previous life and had a good understanding of steelmaking. Anyway, he didn't understand it, so he had a systematic explanation. In fact, it was absolutely fine to be an expert.

He also had the intention to teach and planned to use these blacksmiths as the first batch of students in future steelmaking, even if these students were one or two generations older than him.
Chapter completed!