These wheel-makers can also make these for the use of sea wolves on weekdays, and they can also make some wheels for some ox carts in their spare time.

However, when Yu Xiaotian was about to build water conservancy and road construction projects in Tamsui Village, a large number of wheels were needed to meet the needs.

These few wheel-makers were too busy to make hundreds of wheelbarrows and ox carts at once, and even if they didn't eat or sleep, and worked all night with their apprentices, they wouldn't be able to make so many wheels in two or three months.

Therefore, in the carpenter's workshop, in a short period of time, they could only make frames, 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, and they couldn't complete it at all.

This time, Yu Xiaotian was also a little scratching his head, so he hurriedly sent someone to arrange, and immediately looked for craftsmen who could make wheels on land, and didn't talk to them, and brought them back to work overnight.

But far water can't quench the thirst of the near, the road construction project is about to start, and it can't catch up with the craftsmen at this time, so Yu Xiaotian had to think about another solution, he called some carpenters together, and discussed how to solve it in the carpentry workshop.

The craftsman who made the wheels at the end of the day suggested that if there were not enough carpenters to make the wheels, it could be solved in a simple way.

That is, to find a hardwood with a better roundness, which is about the same size as the diameter of the wheel, turn the round wood into a circle, directly sawn into pieces, and use the middle hole as an axle hole, and then install it on the car as a wheel.

Such a wheel should not be a big problem, but it is more prone to cracking and bulky, and it will not take long for the wheel to be scrapped.

Yu Xiaotian listened, on the spot to do so, first solve the problem, and then solve the quality problem, the frame is generally not broken, the wheel is broken and replaced, anyway, this thing is directly made of wood out of the round wood chips, the cost is low, and after getting more wheel-making craftsmen in the future, it is not too late to slowly replace the wheels for these vehicles, at least it will not be delayed.

As for turning large logs into standard rounds, this matter is easy to do, and it is not used for Xiaotian to go out in person, and the carpenters can solve it.

They immediately selected a batch of suitable timber from the timber accumulation yard and the drying room of the shipyard, and made a bench with rough wood, there is an iron shaft at both ends of the bench, the log can be stuck on the iron shaft, nailed into the wood to fix the wood firmly, on the side of the shelf, fix a planer knife that can slide left and right, and then rotate the log on the wooden frame by manpower, and the planer will start from left to right to turn the uneven surface of the log into a standard circle.

In fact, this is a simple woodworking lathe, but it is more clumsy, and the use of manpower is more laborious.

Yu Xiaotian took the time to take a look at this carpentry lathe, and several apprentices used their strength to rotate the axles on both sides, driving the logs on the shelves to rotate, and the planer turned off the surface of the logs little by little.

After Yu Xiaotian saw it, he felt that the ancient craftsmen were still quite wise, and the roundness of the logs turned by this method could be guaranteed, which was much better than the pure manual hand-based efforts of the craftsmen to plane the logs into a circle little by little, which was labor-saving and the quality was much better.

It's just that the woodworking lathe they use at present is too simple and too laborious, the wood rotates by manpower, the speed is too slow, and the efficiency of the planer is not high.

So Yu Xiaotian couldn't help but take action again, and transformed this simple carpentry lathe, of course, he was only responsible for the design, and the manufacturing still had to be completed by the carpenters.

He designed a drive system for the lathe, added a wheel to the roller on one side of the lathe, and then found a nearby water mill to drive the water power to the clumsy woodworking lathe, driving the wheels on the roller, and also adding a clutch.

In this way, manpower is liberated, only the apprentices need to lift the wood on the shelf, fixed on the chuck of two sections, after adjustment, the transmission mechanism is connected, the machine immediately begins to quickly drive the log to rotate, and someone only needs to operate the planer knife left and right adjustment, the planer knife can quickly plane the log completely round, and then rely on manpower to unload the log, begin to unravel, open the central shaft hole can be installed on the wheelbarrow to use.

Although the efficiency of this kind of clumsy machine is not very high, and the accuracy is not comparable to the machinery of later generations, but now Yu Xiaotian wants to make a large number of wheels of simple chicken buses as soon as possible, and the requirements for accuracy are not very high, as long as there are more things than carrying them on the shoulder, as for saving effort! Hard labor is hard work, and it doesn't matter if you put some effort into it.

Although the efficiency of this bulky woodworking machine is not very high, but after the use of such hydraulic power to replace manpower, the efficiency is still greatly improved compared with the pure human operation, before a dozen apprentices with a rough carpenter, working for a day, can only make two or three logs, but after using hydraulic power, a day can turn out twenty or thirty large logs, the efficiency is increased by more than ten times.

The carpenters are also full of praise for this machine, which was changed by Yu Xiaotian, they saved a lot of effort, and the roundness of the turned logs was good, and the planer knife would not often jam the blade.

On a whim, Yu Xiaotian successively designed a woodworking circular saw, which also uses water power to drive a circular saw blade to solve wood, which is much less labor-saving than pulling a large saw by manpower.

Unfortunately, there is no suitable steel at the moment, and the circular saw blade can be made by the blacksmith, but due to the limitation of materials, it is impossible to make the blade of the band saw, so he cannot make a more efficient band saw, otherwise, once the band saw is made, the production efficiency of both the carpentry workshop and the shipyard will be greatly improved.

Because of the limitation of materials, the diameter of the saw blade cannot be too large, otherwise the strength can not be guaranteed, and only a relatively small saw blade can be made to solve some smaller wood, and the large wood still depends on manpower to pull the large saw for solution.

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

So Yu Xiaotian hit the idea of wind power again, the wind energy in this area of freshwater is still relatively sufficient, and some hilly terrain near the sea has formed a wind outlet in many places, and the wind energy is relatively abundant, so it is more suitable to build some windmills to replace water power and provide power for the sea wolf.

Moreover, water and wind power are used as power, which does not pollute the environment, and the difficulty of manufacturing is low, and there is almost no need for iron to make them.

So he asked the carpenters to try to build a few windmills in their spare time to use as the power of the carpentry workshop, and let the people run around and find a windy mountain pass near Tamsui City as the site of the future carpentry workshop.

But these carpenters have seen water mills, and waterwheels know how to get the road, but they have never seen a windmill, and their imagination is seriously lacking, so they don't know how to do it if they haven't seen it.

So Yu Xiaotian had to recruit a few craftsmen with flexible ideas and good craftsmanship to his residence at night, painting and drawing, and making a small model with simple materials, so that they could roughly understand the structural principle of the windmill, and as for the detailed design, it was up to them to perfect and ponder it themselves.

Yu Xiaotian does not have high requirements for them, at first he can make a very small windmill, first grope and explore, and then after the technique matures, he will be enlarged, and gradually enlarged to the point where it can be used as a driving force.

The technical requirements of this thing are not high, European craftsmen have already built this thing, and for Chinese carpenters, as long as they are given ideas, this thing must not be difficult for them.

After Blacksmith Zhang handed over the matter of the gun as a steward to a newly arrived steward of the council hall, he completely freed his hands, although he was itching in his heart, and he wanted to quickly eat the contents of the big notebook that Yu Xiaotian handed over to him, but he also knew which was more important.

Now Yu Xiaotian wants him to try out this rifling machine, and he wants him to try out rifled guns, which is more important than him looking at the things in his notebook.

So he could only be patient first, busy with the matter given to him by Xiaotian, and began to do it that night.

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

There are only two difficulties in the whole machine, one is the broach for drawing rifling, this kind of broach must be hard, otherwise it will be scrapped in a few clicks, and it will not be able to pull out the fine rifling, so he can't ask others for this kind of thing, he can only make it himself.

Fortunately, after such a long time of often making reeds for various drill bits and flintlock pistols, Blacksmith Zhang and several blacksmith masters under him have basically mastered how to make hard and sharp drill bits.

It's just that Yu Xiaotian hasn't done this thing, but he just understands a rough idea, what shape of the knife is to be made, including Yu Xiaotian himself, and he doesn't know what to do.

Therefore, Zhang Blacksmith has to explore step by step, find a suitable broach shape and installation method, in order to solve the problem, Yu Xiaotian did not say the details, and he himself is not clear, so he just gave Zhang Blacksmith an idea, and a general direction, and he handed over this aspect to Zhang Blacksmith to solve by himself.

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

Yu Xiaotian said that it was okay to use hardwood to make rollers, so Zhang Blacksmith found the carpenters who made the gun and instructed them to make rollers with spiral grooves according to the sketch of the rollers drawn by Yu Xiaotian.

However, the carpenters have not done it, and there is no problem for them to grooving, but how to make the spiral pattern very accurately is more troublesome.