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Heavenly Spirit Continent.

Mo Mo found Shi Wu and asked, "Uncle Wu, how is the Flying Tigers training?"

"We are currently training with the blood-hoofed wild boars in Wild Boar Ridge, hunting a few every day, and we are not afraid of elite wild boars, they can be hunted, and the team members are rarely injured, but the hunting is a little harder. "Shi Wu trained the Flying Tigers according to Mo Mo's training syllabus, and at present, the cooperation between the team members is very tacit.

In addition to this, they also train the reserve team according to the training syllabus of the Flying Tigers, starting with the most basic formation.

"Well, after a little more training, we can try to find a base. Mo Mo was pleased, if the Flying Tigers didn't train well, he didn't worry about them going deep into the twilight forest.

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

In the carpenter's room, most of the carpenters are sawing wood, and it is really difficult to process thinner planks.

Mo Mo was worried, if there was a cutting and sawing cutter machine, it would not be so troublesome, if not, to make wooden boards, he could only plane or saw slowly.

When Mo Mo saw it, he felt that his initial strategy was wrong, and decided to concentrate on processing arrow shafts and arrows first, while a small number of carpenters continued to make parts for the waterwheel.

He took bearings, three-jaw chucks, smooth shaft guides, gear sets, belts, etc., from the earth, and assembled them into a simple lathe, called an "arrow shaft lathe", which was specially used to finish arrow shafts.

The arrow shaft lathe is mainly composed of a power mechanism, a tool holder 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, which is composed of bearings, belts, gear sets, etc., and the main shaft is rotated by pressing the pedal with foot force (similar to the power mechanism of the sewing machine);

The toolholder mechanism is a miniature lathe that Mo Mo bought online, the palm-sized kind, and the parts he dismantled, plus the parts processed by the carpenter, assembled into a new small lathe, and the cutters are, of course, high-speed steel and carbide tools that he bought from the earth.

The guide rail structure includes the optical axis guide rail and the optical axis, each section is 10 cm long, which can be connected to more than one meter long, and the straightness is slightly worse, but at least the wear resistance and straightness can be guaranteed. Without these, Momo would have had to ask the carpenter to make it out of hardwood.

The clamping mechanism is a three-jaw chuck, tailstock, etc., which can clamp a workpiece with a diameter of 35 mm.

Of course, the made arrow shaft lathe cannot be compared with the real lathe, and the screw and light rod of the lathe cannot be made in the other world.

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

The biggest problem is that the bed is too small and the torque is too small, so it can only be used for arrow shaft finishing. It is to let people first cut the arrow shaft into a rod shape, and then they can get on the arrow shaft lathe, otherwise when they touch the knife, the obstruction is too great, and the spindle will not be able to rotate.

In any case, with the arrow shaft lathe, Momo solves the problem of the coaxiality of the artificial processing arrow shaft, and the efficiency of making the arrow shaft is greatly improved.

At present, Mo Mo has assembled five arrow shaft lathes and taught the workers how to use them, and the carpenters are using them to finish the arrow shafts with all their might.

Mo Mo and Shi Wu stood aside, watching the carpenter refine the arrow shaft.

As soon as the tip of the knife touches the high-speed rotating wooden rod, it immediately cuts out a circle of slender wooden wires.

Mo Mo looked at it for a while, and found some problems with the lathe, such as the weight of the lathe is too light, the rigidity is also poor, and the long deflection of the arrow shaft is poor, even if there is a tailstock on the top, the vibration is as large as it is during processing, which affects the accuracy.

"Young Master Mo, it used to take an hour for a person to process two arrow shafts, but now it takes less than five minutes, the efficiency is much faster, and the quality is much better. 50-year-old Wang Jianshu, as the head of the carpenter team, stood aside to report to Mo Mo and Shi Wu, the concept of time is a new concept proposed by Mo Mo, and each supervisor is also assigned a watch.

In this way, a bed can process 100 arrow shafts a day, and five lathes are actually about 500 arrow shafts per day.

Some time ago, the carpenter team had to divide twenty people to process arrow shafts, and it was only possible to produce three hundred arrow shafts a day.

Today, only five people are needed for finishing, five for rough processing, and five for assembling arrows, and five people can process five hundred arrow shafts.

In contrast, machining is much faster than manual processing.

If you do a good job of large lathes and waterwheels, you can directly rough process the arrow shaft, and I believe that the efficiency is faster.

"Uncle Wang, prepare more arrows, if hundreds of people train, you will get 10,000 arrows a day. The bed is not enough, so install more, and prepare more wood and boards as much. Mo Mo is also worried, productivity is far from enough, this is the training of fifty or sixty people, and it is not often practiced archery.

Moreover, the archery practice is usually half full, and the arrow is not loaded, and the arrow shaft can be used once if there is no defect. If you hunt, the arrows cannot be reused, or it is not easy to explode arrows and hurt people.

There are 20 people in the Flying Tigers, 40 in the reserve, and 61 people in the military team, and nearly 100 people in the actual logistics team. This is still based on the fact that Mo Mo cheated and transported materials from the earth, which greatly improved productivity.

Mo Mo finally realized that the national war is a battle for logistics.

"No problem, Young Master Mo. Wang Jianlin nodded back.

Mo Mo looked at it for a while, then left the carpenter's room with Shi Wu and came to the blacksmith's room.

In order to isolate the source of fire, the blacksmith's house was built of stone with a tiled roof, which was far away from the carpenter's house, so it would be bad not to cause a fire.

Before the two of them entered the blacksmith's room, they heard the sound of Ding Dingdang.

When I entered the door, I saw several blacksmiths with big heads busy. The three of them clamped the iron shaft, which was more than two meters long and seventy or eighty millimeters in diameter, with large iron tongs, and the iron shaft was baked dark yellow; the other two wheeled up a big iron hammer to hammer the iron shaft, and each time the hammer fell, the iron shaft immediately deformed.

Seeing that the color of the iron shaft turned dark red, the blacksmiths pushed the iron shaft tempering furnace to heat it.

This iron axle was intended to be used by Mo Mo as an axle for a waterwheel.

In fact, the axle of the general waterwheel is made of wood or bamboo, but the speed is slower. Moreover, wood or bamboo soaked in water is easy to corrode, wear and tear quickly, if the speed is fast, it can not withstand it, and the friction is very large.

The axle is made of steel, which is rigid and can withstand high-speed rotation, and if you put a bearing, the friction will be lower.

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

"Lieber, the step of that shaft should have a circular transition, or it is not easy to break, and now the diameter will be measured, remember to be slightly larger than the diameter of the bearing. Mo Mo thought that the steps were not easy to grind out, if there was a lathe, the axle steps would be much easier, but now they can only be forged, and then slowly sharpened with a file.

"We already know how to use measuring tools, Carpenter Wang taught us. Li Gang said with a smile, but he didn't understand a little, and asked modestly, "Young Master Mo, the shaft diameter is larger than that bearing, can you wear it?"

"It's okay if the shaft diameter is a little more than half a millimeter, but if you bake the bearing, it will expand, and the bore will become larger, and you can fit it in. Mo Mo is not good at explaining hot assembly to him, interference cooperation, can only be said in layman's terms.

Li Gang nodded as if he understood.

Mo Mo was very helpless, some time ago, he was staked out of the shaft size by 1:1 on the ground, and he explained to the blacksmith for a long time before they understood how to do it.

Mo Mo also taught blacksmiths how to read the color thermometer of steel, for example, steel is baked above orange, that is, between 900 and 1,000 degrees Celsius, before it can be forged. When cooled below the dark red color (about 800 degrees Celsius), you can no longer continue to forge, otherwise the steel is prone to cracking.

The blacksmiths just operate according to experience, they just don't understand the principle.

Mo Mo also taught them some knowledge of quenching, such as the influence of different quenching media, brine, water or oil. There is also the holding time, when to quench, and the material obtained is different.

Like this kind of axle, after machining, it must be quenched to ensure the hardness of the shaft surface. (To put it simply, quenching is the process of heating steel to more than 950 degrees Celsius, and then putting it in water or other liquids to cool it quickly to obtain a material with extremely high surface hardness.) For example, the blades of household steel knives are quenched, or the blade is not hard enough, and the blade is curled when the bones are chopped)

Mo Mo thought to himself, it would be good if the blacksmiths could produce a qualified axle in a month.

When the shaft is heated, the blacksmiths make bow arrowheads, cast them directly in sand, then forge and grind them, and finally quench them to ensure the surface hardness of the arrowheads.

When Mo Mo came here, the blacksmiths first put down their work and asked him to explain the knowledge of ironmaking and steelmaking, and Shi Wu, as a layman, also listened carefully.

Mo Mo was a mechanical engineer in his previous life, and he already knew something about steelmaking, anyway, he didn't understand, and there was a system to help explain, in fact, it was no problem to be an expert.

He also has a heart to teach, and plans to make these blacksmiths the first batch of students in the future steelmaking, even if these students are a generation or two older than him.