Han Yuxi went to Mrs. Li to learn business management and do accounts after eating in the morning, and the two little maids also followed and waited, so at this time, there were only three of them in the entire West Courtyard.

Li Zexuan first determined the spatial scale of the model, and he made a rough calculation and finally determined a ratio of 1:100, which not only saves a lot of materials, but also makes people look more comfortable.

Most of the modern sand tables use a ratio of 1:70 to 1:100.

Then Li Zexuan made the table of the sand table according to the floor plan and the proportion of the sand table. The table he used was similar to the billiard table in his previous life, but the size of his billiard table was really a bit big.

"Iron Egg~! Will you look at the drawings or not~? ”

After putting together the platform, Li Zexuan took out the stack of drawings he had drawn yesterday and asked.

"Well, no, Master!"

Tie Dan glanced at the complicated lines on the drawing, shook his head, and said embarrassedly.

These Li Zexuan have never taught him!

"Gott~! Let's teach you to recognize new drawings first! As my Li Zexuan's apprentice, if I can't even draw drawings, wouldn't it be too embarrassing to say it~? ”

Li Zexuan patted his head, called the two little guys aside, and began to draw them on the project.

About half an hour later, Tie Dan and Lan'er finally learned how to read drawings, as for drawing drawings, they had to go down and practice slowly, Li Zexuan didn't have so much time to waste anyway.

"Okay, I'll split the wooden board first, Tie Dan, you take these drawings, put the size on it, according to the ratio of 100:1, draw a mark on the wooden board with a pencil, and then you will cut it according to the mark in a while~!"

Li Zexuan took three drawings of a simple small building, handed them to Tie Dan, and said.

He didn't assign a task to Lan'er, it's good if this little girl doesn't make trouble for him, as for the task for Tie Dan, it is mainly for consideration, these jobs are not for Tie Dan to help, and it won't take long for him to do it himself.

"Okay~! Master~! ”

Tie Dan also understood that Li Zexuan was examining him, so he hurriedly took the drawings and looked at them seriously.

Li Zexuan smiled, then picked up the wind chasing sword, and became the most powerful carpenter in this era, now he has a higher realm, cutting wood is like cutting tofu, and the thickness of each plank is almost the same.

In less than a quarter of an hour, I saw one smooth wooden plank after another, piled up two feet high in front of Tie Dan, who had just come back from the drawings and was suddenly blinded when he saw this scene!

What kind of kung fu is this? Could it be that his master still has the ability to cut wood with one hand and didn't give it to him?

Tie Dan thought in his heart.

"Hee-hee~! What is this~? My brother has something more powerful that hasn't been used~! Brother Tie Dan, you look good, study hard~! In the future, you will inherit my brother's mantle~! ”

Lan'er saw Tie Dan's shocked look, and she didn't know what he was thinking, the little girl patted Tie Dan's shoulder, and played Bao Dao with the tone of a little adult.

Tie Dan's eyes lit up and he nodded excitedly.

Li Zexuan had a dark face, almost vomiting blood, and his younger sister didn't know where he learned these words, it was really slippery to say, anyway, he sounded weird.

"Tiedan, quickly mark according to the drawing~!"

Ignoring the little girl, Li Zexuan said directly to Tie Dan.

"Oh, oh, good Master~!"

Tie Dan remembered his task at this time, and hurriedly took a few wooden boards and began to mark them against the drawings.

Lan'er also squatted down and leaned over to Tie Dan's side, expressing a few opinions on Tie Dan's work from time to time.

Li Zexuan split all the remaining wood in three times and divided five by two, and then he began to cut and assemble the teaching building of Yanhuang Academy - Guanghua Building, the library of the academy - Red Building, and the auditorium of the academy - Bei Gong Building, these three buildings are the largest and most complex buildings in Yanhuang Academy.

Different from Tie Dan, Li Zexuan didn't need to look at the drawings at all to make a model of the building, he closed his eyes, and the three-dimensional model of the three buildings suddenly appeared in his mind.

Those who are familiar with computer graphics should know a professional term called explosive view, and the situation in Li Zexuan's mind now is similar to that of explosive view.

After a few breaths, Li Zexuan opened his eyes, and saw that he didn't need to refer to the drawings, let alone make any marks on the board, so he directly picked up the wind chasing sword and began to carve on the board.

The long wind-chasing sword seemed to have turned into a flexible and sharp carving knife in Li Zexuan's hand at this moment, and the sawdust on the small wooden board was flying, and after a while, it became a wall with windows and balconies, and the patterns on it could be faintly seen, and the end was extremely exquisite.

Tie Dan was still working the side, but when he heard the movement here, he looked over, and then ..... And then there was no then.

He finally understood what Lan'er meant when she said that Li Zexuan had more powerful skills that he hadn't used, this... The most awesome carpenter in Chang'an City, this special mother, is not so hanging, right?

"Don't be envious, practice makes perfect, you can get the iron egg quickly~!"

Li Zexuan said without raising his head as if he had eyes on his head.

"Oh~!"

Iron Egg replied sullenly and continued to work, but now he really felt weak.

Nearly an hour later, Li Zexuan finished all the "parts" of the three buildings, he swept the progress of the iron egg, and found that this kid was still "whirring" and cutting!

Li Zexuan didn't care about him, and started the next step of his work - assembly.

The simulated sand table in the modern sales office, the building model is glued together with a special chemical adhesive, Li Zexuan is not able to make that kind of adhesive in a short time, but it is not impossible, he has glutinous rice milk.

Glutinous rice milk is the most commonly used adhesive in ancient times, and its viscosity is also relatively strong, and the most important thing is that this thing is easy to get!

Don't question whether there was glutinous rice in the Tang Dynasty, at least there was glutinous rice before the Qin Dynasty.

The assembly work is actually almost equivalent to a 3D jigsaw puzzle game, and for Li Zexuan, who has an extremely strong mental power, this thing can only be said to be so easy.

In half an hour, the three buildings were officially formed, and they looked really magnificent, and Lan'er liked it completely after just one glance.

"Wow~! Brother~! This little house is so beautiful~! Can you give it to Lan'er? Lan'er uses it to raise crickets~! ”

Raise crickets~!

Li Zexuan really wanted to knock on Lan'er's little head, was the model he had worked so hard to make for so long just for her to raise crickets? Tyrannical creatures!

"Lan'er, don't make trouble, this thing brother is very useful!"

"Oh!"

Lan'er pursed her lips and secretly said that her brother was really stingy, and then ran over to help Tiedan.

…………………