Daming pirates

These wheel-making craftsmen can still make these for the use of sea wolves on weekdays. In their spare time, they can also make wheels for some ox carts.

However, as Yu Xiaotian plans to carry out extensive water conservancy and road construction projects in Tamsui Village, a large number of wheels are needed to meet the needs.

The few wheel-making craftsmen were overwhelmed. They were making hundreds of wheels for wheelbarrows and ox-carts at once. Even if they did not eat or sleep, and led their apprentices to work all night long, within two or three months,

You can't make so many wheels inside.

Therefore, the carpenter's workshop could only make a frame in a short time, but they could not make so many wheels. So Yu Xiaotian asked them to concentrate on producing a large number of wheelbarrows within half a month. They simply could not

Finish.

Yu Xiaotian was a bit scratching his head at this point, so he quickly sent someone to make arrangements to find craftsmen who could make wheels on land immediately. Don't bother with them anymore, and cooked a pot from their house overnight and brought it back to work.

But water from afar could not quench the thirst of the nearer. The road construction project was about to start. At this time, it was impossible to catch the carpenters, so Yu Xiaotian had to think of another solution. He called some carpenters together and started working in the carpentry workshop.

Let's discuss how to solve it.

Finally, the craftsman here who made the wheel suggested that if there were not enough carpenters to make the wheel, he could use a simple method to solve the problem.

That is to find hardwood with relatively good roundness, about the same diameter as the wheel, turn the log into a circle, saw it directly into pieces, make a hole in the middle to use as an axle hole, and then install it on the car to use as a wheel.

The strength of such wheels should not be a big problem, but they are more prone to cracking and heavier, and the wheels will be scrapped in a short time.

When Yu Xiaotian heard this, he decided to do this on the spot. First solve the problem, and then solve the quality problem. The frame is generally not worn out. If the wheel is broken, just replace it. Anyway, this thing is made directly from wood.

Round wood chips are low-cost. After more wheel-making craftsmen are obtained in the future, it will not be too late to slowly replace the wheels of these vehicles. At least it will not delay things.

As for turning the large log into a standard circle, this is an easy matter. Carpenters can solve it without Xiaotian doing it himself.

They immediately selected a batch of suitable wood from the lumberyard and the drying room of the boat house, and made a platform out of rough wood. There was an iron axle at both ends of the platform, which could clamp the logs.

On the iron shaft, after nailing the wood to secure the wood firmly, a planer that can slide left and right is fixed on the side of the shelf, and then the log on the wooden frame is rotated manually, and the planer starts to cut the irregular round from left to right.

The raised and depressed areas on the wood surface are turned into standard circles.

In fact, this is just a simple woodworking lathe, it's just cumbersome and uses manpower, which is more laborious.

Yu Xiaotian took the time to take a look at the woodworking lathe. Several apprentices used all their strength to rotate the axles on both sides, driving the logs on the shelf to rotate, and the planer peeled away the surface of the logs bit by bit.

After Yu Xiaotian looked at it, he felt that the ancient craftsmen were quite wise. This method can ensure the roundness of the logs turned, which is better than relying on the craftsman's eyesight to plan the logs into a round shape bit by bit.

, saves labor and the quality is much better.

It's just that the woodworking lathe they are currently using is too simple and laborious. The wood is rotated manually, and the speed is too slow. The planer is not very efficient. At the end of the day, it has to be replaced constantly.

Otherwise, just spinning the wood would tire these apprentices to death.

So Yu Xiaotian couldn't help but once again took action and modified this simple woodworking lathe. Of course, he was only responsible for the design, and the manufacturing still had to be completed by carpenters.

He designed a transmission system for this lathe, added a wheel to the roller on one side of the lathe, and then found a nearby water mill to transmit water power to this heavy woodworking lathe, driving the roller.

wheels and a clutch device.

In this way, manpower is freed. The apprentices only need to lift the wood onto the shelf and fix it on the two-section chuck. After adjusting it, connect the transmission mechanism, and the machine will immediately start to drive the circle quickly.

The wood starts to rotate, and someone only needs to adjust the planer left and right, and the planer can quickly completely round the log. Then, the log is removed manually, and the pieces are started. The center axis hole is opened and the log can be installed on the wheelbarrow.

used.

Although this kind of machine that is so clumsy that people feel speechless is not very efficient, and its accuracy cannot be compared with the machines of later generations, what Yu Xiaotian wants now is to make a large number of simple chicken and bus wheels as soon as possible.

The requirements are not very high, as long as you can carry more things than you can carry on your shoulders. As for saving effort! Hard labor is hard work, so it doesn't matter if you put in some effort.

Although this kind of heavy woodworking machine is not very efficient, after using such water power to replace manpower, the efficiency has been greatly improved compared with pure manpower. In the past, a dozen apprentices and a rough carpenter would work for a day.

At first, only two or three logs could be turned out, but after using water power, twenty or thirty large logs could be turned out in one day, and the efficiency increased by more than ten times.

The carpenters are full of praise for this machine. With Yu Xiaotian's modification, they save a lot of effort, and the roundness of the turned logs is good, and the planer does not often get stuck and break the blade.

On a whim, Yu Xiaotian designed a woodworking circular saw, which also used hydraulic power to drive a circular saw blade to cut wood. It was much less labor-intensive than manually pulling a large saw.

It is a pity that there is no suitable steel at the moment. The blacksmith can find a way to make a circular saw blade, but due to material limitations, he cannot make a band saw blade, which makes him unable to make a more efficient band saw. Otherwise,

In other words, once a band saw is invented, the production efficiency of both the carpentry workshop and the boathouse will be greatly improved.

Due to material limitations, circular saws cannot make saw blades that are too large in diameter. Otherwise, the strength cannot be guaranteed. They can only make smaller saw blades for cutting smaller pieces of wood. Large pieces of wood still require manual labor.

Come and pull the big saw to cut the material.

However, although water power is good as a motive force and can provide relatively stable power output, after all, this thing is restricted by the river water and terrain, and can only be selected at a suitable location, which limits the use of water as power.

So Yu Xiaotian turned his attention to wind power. The wind energy in Tamsui is relatively abundant. Some hilly terrain near the sea has formed wind vents in many places. The wind energy is relatively abundant, so it is more suitable to build some windmills to replace water power and provide

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Moreover, water power and wind power are used as power, which does not pollute the environment, and the manufacturing difficulty is also low. Iron is hardly needed to make them. Good craftsmen can almost completely rely on the mortise and tenon structure to make these things very strong.

So he asked the carpenters to try to build a few windmills in their free time to use as power for the carpentry workshop. He also asked people to run around and find a windy mountain pass near Tamsui City to use as a power source for the carpentry workshop in the future.

Factory address.

But these carpenters have seen watermills and know how to make waterwheels, but they have never seen windmills. In addition, they have a serious lack of imagination. Naturally, they don't know how to make waterwheels without seeing them.

So Yu Xiaotian had no choice but to recruit a few craftsmen with more flexible ideas and better skills to his residence at night. They painted and gestured, and also made a small model using simple materials to give them a rough understanding.

As for the structural principles of the windmill, as for the detailed design, it is up to them to perfect it themselves.

Yu Xiaotian does not have high requirements for them. He can first make a small windmill and explore it first. Then when the technology matures, he can enlarge it and gradually enlarge it to the point where it can be used as a driving force.

The technical requirements for this thing are not high. European craftsmen have already been able to build this thing. For Chinese carpenters, as long as the ideas are given to them, this thing will not be difficult for them.

After Zhang Tiejiang handed over the management of the gun to a newly arrived steward of the council, he completely freed up his hands. Although he was itching in his heart and wanted to quickly take away the contents of the large notebook that Yu Xiaotian gave him.

He eats everything thoroughly, but he also knows which is more important and which is more important.

Now Yu Xiaotian wants him to trial-produce this rifling machine and rifled gun. This matter is more important than what he reads in his notebook.

So he could only be patient and busy with the matter that Xiaotian gave him, and he started to work on it that night.

The structure of this rifling machine is very simple. It is not much more complicated than the horizontal drilling machine they used to drill the gun bore, and it is even simpler.

There are only two difficulties with the whole machine. One is the broach for drawing rifling. This kind of broach must be hard, otherwise it will be scrapped after a few times, and it will not be able to draw fine rifling, so he cannot do this kind of thing.

If you ask others, you can only make it yourself.

Fortunately, after frequently making various drill bits and flintlock reeds for such a long time, Blacksmith Zhang and several of his master blacksmiths have now basically mastered how to make hard and sharp drill bits. With this

After the basics, the rifling broach can still be solved as long as you are patient and careful.

It's just that Yu Xiaotian has never made this thing. He only has a rough idea of ​​what shape the broach should be made into, and even Yu Xiaotian himself doesn't know.

Therefore, Blacksmith Zhang had to gradually explore by himself to find a suitable broach shape and installation method in order to solve the problem. Yu Xiaotian did not explain the details, and he did not know it himself, so he just gave Blacksmith Zhang an idea and a

As for the general direction, he left this aspect to Blacksmith Zhang to handle on his own.

The production of broaches is one difficulty, and another difficulty is the production of rollers with spiral patterns.

Yu Xiaotian had said that the rollers could be made of hardwood, so Blacksmith Zhang called in the carpenters who made the gun and ordered them to make rollers with spiral grooves according to the sketch of the roller drawn by Yu Xiaotian.

But the carpenters have never done this before, so grooving is no problem for them, but how to make the spiral pattern very accurately is more troublesome.