Of course, if you want to quickly hone the ability of handicraft, it is not a very troublesome thing, he only needs to make a large number of jewelry and other things, just like the previous ability to brush carpentry, with methods similar to brush experience, you can quickly improve the skills of handicraft, but this method is usually effective for low-level abilities, and when promoted to the expert level, or even proficiency level, this way of brushing experience is very limited.

Fortunately, Zhou Ran's method of this level is still effective, Zhou Ran raised the bamboo slip in his hand, and it took him a full two hours, and he barely grinded one out with charcoal on the bamboo slip, which can only be called a sketch, or even a chariot pattern that can only be said to be a stick figure.

The initial model of the chariot designed by Zhou Ran is, in general, an enlarged board car, equipped with a total of 4 relatively thick wheels, and the circle around the board car is surrounded by a fence, as for the original materials, I haven't figured out what to use.

Although it is said that the basic pattern design has been designed, of course, it will not be possible to make this thing for a while, after all, there are still a lot of problems in it.

First of all, there is the problem of these 4 wheels, it is not a problem to simply make wooden wheels, Zhou Ran has also made a lot of board cars before, and all the simplest wooden wheels are used on them.

However, the wheels and hubs used to support the middle of the wooden wheels are all made of wood, so these wheels are not durable, and the surface of the wheels is also made of pure wood, and there is no soft material such as rubber to cushion, which will cause very serious bumps every time you walk on the road.

If you just use a cart to transport goods, this kind of bump is nothing, anyway, the goods are all dead things, and there is no sense, naturally there will be no complaints about this situation, the only negative effect is that the durability of this wheel is not so good.

But if there were people standing on it, then it would not work, you must know that for a long time in real history, the wheels used in horse-drawn carts or ox-carts were not used in any such thing as rubber, and it was simply torture to sit on them, so at that time, in most cases, people were riding horses or oxen and other animals that were in charge of pulling the carts, and the carts behind were filled with goods.

But the chariot can't be like this, so Zhou Ran has to think of a way, but at the moment it seems that the only way to use it is to replace it with something like leather, which is also one of the methods used by ancient people before rubber was studied and made into tires, and the materials that can be made into tires are nothing more than a few, either oil or natural rubber, which are all things that Zhou Ran can't get his hands on now.

Putting these things aside for the time being, Zhou Ran began to return to the backyard and polished the main part of the chariot, that is, the main body responsible for stepping on the bottom.

It is unlikely that such a large piece of body will be made directly from a piece of wood, after all, he does not have such a wide wood at hand, so he simply made it into a wooden plank, and then spliced it together piece by piece, in order to play a stable role, he also used cross splicing, a total of three layers.

After feeling it a little, this level of wood bearing capacity should not be too bad, it would be better if the outside could be wrapped in a circle of iron sheets, but now Zhou Ran's craftsmanship has not reached this level.

This is a big problem, even if the fence and other parts are made of wood, there will be more and more parts that need to be made of metal, but I have not yet mastered the method of smelting and forging metal, although I know a little bit of forging tools, but now I don't have the right iron felt and furnace, and I have to find a way to get these things out." ’

Zhou Ran also felt quite big, it was difficult for a good woman to cook without rice, he now has rice, but there is no pot, if there is a pot, at least he can boil a pot of water, but now he doesn't even have a pot, so he can't just steam rice in his hands.

Iron felt and furnaces basically need to use metal, the furnace is fine, he also has one or two ways to make a furnace out of clay in his mind, and he may need to use bricks and other things halfway, but the difficulty of making bricks is much simpler than iron sticking or something, at least this thing does not need any too complicated processing tools and means.

'In addition to all kinds of steel and higher-end materials, there are quite a few bronze ingots in my hand, and the melting point of bronze ingots is much lower than that of steel, and even the method of making an earthen blast furnace should be able to successfully melt the bronze. ’

Thinking of this, Zhou Ran came to power again, he stood up directly, and after about three hours at this time, he had basically completed all the main parts of the chariot, including the heavy wooden fence and the 4 wheels underneath, but the most critical parts still need to be reprocessed, and metal must be used for secondary processing.

Zhou Ran didn't hesitate too much, so it was okay to replace these secondary processing parts with straw ropes and animal skins, but anyway, metal would be used to forge the medicine furnace later, and at this time, the most important problem would be solved.

At this time, it was close to evening, and there was no one by the river, not even the old man was in the field, and the green grass was dancing slightly in the breeze.

Zhou Ran just glanced a few times and didn't go over, he ran to the river, and began to search along the whole river, last time the range he was looking for was not very large, only found ordinary soil, this time he planned to expand his search range a little, if he was lucky, he might be able to find things like clay, if you want to make a blast furnace, it is still very difficult to use just ordinary soil.

However, Zhou Ran's luck was not very good, or the output in his territory was indeed a little small, and there was really no such thing as clay, so he walked around the river for a whole circle.

That's right, even if he walked around the whole way, he didn't find it in one go, so he had no choice but to cross the creek and circle back from the other side of the riverbank, making sure that the other side of the river bank was also missing.

It took several hours just to make such a trip, and when Zhou Ran returned to his starting place, it was already midnight, although he wasted half a day in one breath, but Zhou Ran didn't complain too much.

Although clay sounds like a very common thing, if you really want to sell it, the value is not very high, but if you want to find a large piece, it is actually not so easy, Zhou Ran already had the possibility of not finding it before he first looked for it, so he was not lost.