The process of digging holes in gunpowder and repairing the shape of an iron pickaxe was repeated, and a "bedroom" of about 10 square meters was excavated from the mountain.

On the outer wall, Xu Le excavated a window about one meter long and wide.

The edges of the windows are plastered with a layer of plaster, and then covered with thin strips of flattened wood to make a window sill.

The upper and lower edges of the window sill are dug with two small holes on each side.

When he had done this, he cut off the twigs and prepared two of them one and a half meters long, four of which were exactly one meter long.

Then there are eight fifty centimeters each.

The surface of each strip of wood is carefully smoothed and polished, and the wood grain is clearly visible.

"Thighs, these are tied up to make a window, right?"

Meng Yiyi, who cut a coconut, touched the coconut water and handed it to Xu Le, who had been busy for a while, and asked with a wink.

"That's right to make a window. ”

Xu Le took the coconut water and drank a few sips before saying slowly, "But it's not as simple as bundling together." ”

Meng Yiyi and Lin Xihan's eyes flashed, waiting for him to continue to explain.

One is a cute silly white sweet, accustomed to asking directly when something is indecided.

The other shows the duality of pride and coquettishness, obviously curious, but embarrassed to ask directly.

Your personality is simply ...... Xu Le muttered in his heart.

Admitting that I was impressed by my skills is not something to be difficult to say.

Why are you so awkward......

"I'll find out in a moment. ”

He threw out the mantra and threw over a new job along the way: "You two will help you make up a few thatched skirts first." ”

Lin Xihan: ""

"Make it up!"

Xu Le added: "Fifty centimeters by fifty centimeters, a total of four pairs. ”

After speaking, he picked up two wooden strips, overlapped them up and down, and overlapped with the shallow traces carved with an iron knife.

After all the sticks were marked with such marks, he began to groove on one of them.

Barrage in the live broadcast room——

"This shouldn't be ......"

"It's really possible that it's ......"

"What's it? Can you explain it to me with iron juice?

"That's the ......"

"Hmmm......"

"Let's go, the Riddler get out of the live broadcast room!"

"Hahaha joke joke. Boss Xu Le, if I'm not mistaken, this is going to use the structure of mortise and tenon to make this window!"

"I've heard of this, you don't need a drop of glue, you don't need a nail to fix a wooden structure firmly!"

"Will this Xu Le boss too?"

"It's awesome!"

Xu Le started like flying, and soon carved out an inverted trapezoidal dovetail groove at both ends of this one-meter-and-five-long wooden pole.

The very center of the pole was carefully dug through directly to form a rectangular mortise.

The wooden poles of one meter and five long are used as the pivots of the windows, and they are all processed in the same way.

Two of the one-meter-long wooden poles are taken out, and the same through mortise is cut in the center, and the ends are cut diagonally.

At a 45-degree angle, the center of the incision leaves a square raised tenon for later use.

The remaining two wooden poles are cut in half diagonally in the center, and hemispherical grooves are cut at both ends.

The hemispherical groove has a straight head in the center, which looks like a "mountain" with a rounded bottom when viewed from the side.

Eight short wooden poles of fifty centimeters are also divided into two groups.

One end of the group is cut out of the rounded "mountain" notch at the bottom, and the other end is cut out of the tenon with a square protrusion at a 45-degree angle.

At both ends of the other set of wooden poles, there are "mountain" shaped notches, and half of them are dug diagonally in the middle.

"Ready!"

【Burn the Flame!】

【Precision machining!】

The processing of the mortise and tenon structure is a meticulous work, and when Xu Le finished doing this, a thin layer of sweat rarely appeared on his forehead.

He pointed his camera at the neatly arranged wooden poles and explained:

"We're only going to touch on the simplest mortise and tenon process here. The structure of the window frame is simple, so this kind of directly interspersed mortise and tenon joint is enough. ”

"If it's more complex wood, such as tables and chairs, it will involve complex mortise and tenon joints. ”

"Let's assemble it. ”

Barrage in the live broadcast room——

"Ah......h It looks like it's pretty simple, and I feel like I can do it at home......"

"Hehe, you will see it when you see it, and you will lose it as soon as you learn it. ”

"The eyes said that they understood, and the brain said that I was sorry that I got off work!"

"The brother who is on the line with the kitchen ingredients, do you want to consider another carpenter's craft?"

"No, no, just by matching the ingredients, my mother almost killed me. If I do this at home again, the iron juice in the live broadcast room will never see me again in the future!"

“......”

The connecting rod of the pivot is placed on the outermost side, and the two sides of the window frame are placed at the upper and lower ends.

On the inside of the window frame is a separate one-meter-long wooden pole.

Finally, the remaining horizontal and vertical wooden poles are stacked together to form a cross shape.

All the mortise and tenon joints were only lightly put on, and there was no rush to wedge them inward.

"The subtlety of the mortise and tenon joint is that it is a structure that moves the whole body, and there is a certain process when assembling. ”

"It's like this—"

While explaining, Xu Le held the two opposite corners of the window frame on one side with his hand, and pressed it hard in-

Click!