Where is the safest place to get drunk?

For Xiao Yun, it may be his Majesty's side.

Because if he wants your life, he is definitely the easiest person to kill you. On the contrary, even if he collapses beside him, it's okay.

Xiao Yun still feels headache when he comes home.

But there is no time to have a good rest.

Directly let someone find Han Sui.

By the way, let him bring some of the best craftsmen.

Xiao Yun just wanted to use cast iron to make the melting and casting heating system, but it takes too much manpower and material resources to melt the iron ware.

Low cost, but high cost.

This is not what Xiao Yun likes.

So finally chose copper!

As for how to use copper to cast a row of heating, or commonly known as heating bag.

Xiao Yun thought of the wax loss method.

Although this method is relatively old, it is a convenient and easy-to-use method that can eliminate trachoma to a certain extent.

When Xiao Yun saw several craftsmen, he didn't teach them the technology first, but chatted first and determined whether they were credible through Han Sui.

In a few words, Han Sui also understood Xiao Yun's meaning.

They focused on their temperament and their families.

It's hard to find a loyal person.

There are several slightly simpler ways, such as a happy family.

Including the kind of old and young, and the reputation among neighbors is also very good.

Morality is on the one hand, and fetter is the most important.

When a person has a good life, the price of betrayal will become great!

Han Sui really knows Xiao Yun.

After receiving his order, he had taken this into account when selecting people.

Therefore, bringing these people is the most reliable, or... It is also the easiest for him to control.

Xiao Yun glanced at Han Sui and nodded at him with satisfaction.

Then let Qing'er take something out of the house.

The most important one is wax.

"What is the quickest way to make a sword if all the tools are ready?"

Xiao Yun asked a question that made everyone speechless.

After a while, someone said tentatively, "casting is still relatively fast. After all, the molding is very fast. If you use the current forging method, the speed is too slow. Now it takes seven or eight days to complete a first-class instrument knife. Of course, our instrument knife is also the best."

Another person nodded and said, "indeed, the casting method is very convenient. Before, it was difficult to cast iron because of the furnace temperature. Only our workshop can do it, so the casting method is the fastest and best."

Xiao Yun smiled and said, "the judgment is fairly accurate. Today, I'm going to teach you a faster method than ordinary casting. Of course, in order to make it easier, I don't use iron this time, but copper."

Under the confused and excited eyes of the people.

Xiao Yun carved a piece of complete wax into a strange shape, hollowed out shape. Some parts of it are very thin, which can hardly be done if it is ground and carved.

At first glance, the shape was like a tangled, dense hair!

But when you look closely, you can still see all kinds of subtle shapes, just like dozens of totems being kneaded together.

A craftsman couldn't help asking, "childe, what are you... Doing?"

Xiao Yun smiled and said, "look carefully."

Take an iron bucket, put the shaped wax in it, and then fill it with a very fine sand, which has a special composition.

Under slight knocking, the sand will penetrate into any gap, and as long as some water is added, the sand will be immediately fixed into its current shape, with high toughness and strength.

Under the iron bucket, there is a hole with wax.

There is also a hole in the top, which is also connected to the wax block below.

Take something and go to the casting room of Xiao's family, melt a pot of copper water, and then pour it into it along the hole on the iron bucket.

At the same time, a magical thing happened.

There will be melted wax dripping down.

Until

The wax disappeared completely and copper came out.

Xiao Yun stopped immediately, blocked the hole below, filled it up and let the copper water overflow.

Then a basin of water is poured on it to cool the whole iron bucket quickly.

A few barrels down, the white fog no longer rises.

Xiao Yun split the iron bucket and knocked off the solidified soil with a hammer.

The last thing left

It's a piece of cast copper!

The as like as two peas, except for the rough edges and the smooth details, all the others, whether in shape or appearance, and the size, including the details, are exactly the same as the previous wax figure.

"This!"

The so-called layman watching the excitement, the expert watching the doorway.

After Xiao Yun's practice, those shrewd craftsmen immediately understood how Xiao Yun did all this.

Everyone stared at Xiao Yun with wide eyes.

Just because of this method, it is too clever!

Xiao Yun didn't explain too much. He kept trimming the formed copper block with a small file, and then polished the details with a finer file.

Soon, a glittering bronze art was born in Xiao Yun's hands.

The craftsmen dared not blink their eyelids in the whole process.

For fear of missing any detail.

They know that Xiao Yun teaches them and won't tell them the details.

How much you can see is personal creation.

Only those who fully master this skill are qualified to go to the end and become the core figure in the Xiao family workshop.

After finishing it, Xiao Yun sat there eating the tea and fruit brought by Qing'er.

I didn't say a word all the way.

After about a cup of tea, a craftsman came up and observed the wax carefully, especially after they had formed wax blocks on the ground.

After a incense stick, another craftsman came up and carefully studied the sand burned into hard blocks at high temperature.

After a while, a man went directly to the place where Xiao Yun placed the raw materials, took out all the things he used, in fact, each one had a surplus, looked at it in turn, and then meditated with his eyes closed.

He went directly to Xiao Yun, bowed deeply and asked carefully, "childe, villain... Can you try?"

"A short knife is enough. Don't waste time."

"Yes."

The man immediately used Xiao Yun's technique to quickly make a small dagger, which is the size of a palm and has many burrs, which is somewhat different from the wax shape carved before.

He was stunned for a while, then he knocked on his head and said in a low voice, "the villain forgot to knock on the cylinder wall and didn't let the sand fill it completely."

Xiao Yun nodded.

Then he stood up and said, "the seven of you, no matter what level, do this work together, and now you have a job right away. You don't have to hide it from you, that is, make a set of heating things for your majesty. You will make a lot of money with this thing in the workshop in the future, so you must not make mistakes."

With that, Xiao Yun threw a design drawing in the past.

It has the size of the study and the length of each official road.

He doesn't need to measure these things carefully. He can know the specific size with a little look.