Back on the edge of the scaffolding, Xu Yi pulled the crane and put the assembled board to the ground again.

Before assembling, although the distance between the sleepers was adjusted, Xu Yiyou moved several sections of steel rails and the base of the band saw to the sleepers to connect them for the sake of safety. The markings on the lower sleepers were re-established to make sure they could coincide with the holes that held the bolts in place, and then the rails were removed and the sleepers were drilled.

Xu Yi used a drill bit about three to five millimeters thick to mount the electric drill, pressed the drill bit against the center of the screw holes of the steel sheets, and held the handle of the electric drill with both hands and pressed it down on the sleeper.

Keeping the drill bit vertically aligned with the sleeper, Xu Yi buckled the plate machine, and saw the drill bit buzzing into the sleeper.

Until almost all the drill bits were drilled into the sleepers, Xu Yi released the trigger and pulled the drill bit out.

After all, it is a hardwood, and the thickness is relatively large, which is not the same as the previous gasket, and this sleeper can no longer be adjusted when fixed here, so Xu Yi feels that the necessary care is still very necessary.

In this way, drill a guide hole with a fine drill bit, and then add a rough drill bit, which can better ensure the machining accuracy and reduce the difficulty.

After all the guide holes were processed, Xu Yi directly replaced the extended drill bit with the same bolt specifications, and buckled the plate machine again on the previously drilled guide hole.

The drill bit was almost ten centimeters in, and Xu Yi felt that his hand was empty, and the drill bit was obviously sinking. Xu Yi withdrew from the drill bit, and saw a trace of dirt coming out of the blade in front of him, obviously the sleeper and the board below had been thoroughly drilled.

The work of drilling is not too difficult, and the labor intensity is not too large, but the requirements for control are relatively high.

After all, it's drilling holes in the hardwood. The aperture is relatively large. The power of the electric drill seems to be a little insufficient. If the force is small, the drill bit will not be able to eat the wood, and if the force is large, the motor will simply strike.

After a few holes were drilled, the drill bit became even hotter, and even when the drill bit was pulled out, I could smell the smell of burnt wood.

In order to avoid overheating and annealing of the drill bit, Xu Yi had to drill a few holes and stop for a while, waiting for the drill bit to cool down before continuing to dry. I worked on and off for a long time before I could drill all the holes.

Xu Yi didn't have any problem looking at it. I put the bottom plate down again.

Now, only the top panel needs to be dealt with. But the bottom side is nailed, what's so difficult about the top side?

The bottom side has to be nailed from the bottom to the top with your head up, and it will not be more efficient than stepping on this nail on the top.

As usual, after adjusting the length of the board to avoid the joint falling short and putting it in one place, Xu Yi nailed the board on it quickly.

Approaching the position of the boreholes on the sleeper, Xu Yi also adjusted the width of the adjacent plank, so that the borehole position fell as far as possible in the middle of the layer of wood covering it.

And not only that, in order to enhance the strength of these load-bearing positions. Xu Yi didn't use pine, he used those oak laminated wood boards instead of those pine wood.

Nail the board to the side as well. Leaving the last one unnailed, Xu Yi stopped and pulled the jack to pull the board up.

After the board was pulled to the right height, Xu Yi took an electric drill to drill under the board, inserted the drill bit into the hole drilled before, and drilled the board above.

It's just that the first layer of the board is not very thick, so the overheating of the drill bit did not happen, and Xu Yi drilled very quickly.

After using a flat-bladed chisel to clean the burrs on the edge of the drilled hole, Xu Yi went around to the front of the board, dragged the bag containing the bolt, and carefully stepped on the board to the edge of a drilled hole.

Picking up a bolt and unscrewing the nut on it, Xu Yi pierced it head-down into the hole, and walked towards the next hole.

It wasn't until all the bolts were plugged in that Xu Yi went around to the bottom of the board and held the nuts to fix the bolts simply.

Xu Yi pulled the crane again, put the board on the ground, and pulled it up again after a while.

There were small round holes in the ground, and there were traces on the edges - this would be where the bolts were placed.

Again, this bolt is too long, if it is installed directly on the board, the ground will have to be exposed about seven or eight centimeters long, after all, this thing was originally designed to be installed on the concrete floor below, relying on such two layers of boards and a sleeper There is really no way to leave the screw short enough, as before, this has to add a spacer.

However, this time, the gasket does not need to be as thick as before, and the thickness of the gasket that can be padded under this time can only be five or six centimeters.

The previous oak wood squares were too thick to be used anymore, and Xu Yi had to sawn them all thin again.

Holding the wooden cube and putting it on the workbench of the small band saw, Xu Yi turned around to get the ruler, but his footsteps stopped, and he thought of another problem - oak is a hard wood with good mechanical properties, but it is still a kind of wood.

As the most closely related to human beings, the most commonly used building materials or decorative materials in ancient and modern China and foreign countries, human beings are well aware of the characteristics of wood.

Different species of wood have a variety of similarities, but they have a common characteristic - they are anisotropic materials, and there is a considerable difference between the direction of the grain and the direction of the horizontal grain.

The tensile and compressive strength of wood are high, but the tensile and compressive strength of the transverse grain are much lower, and the instantaneous strength is more than double that of the long-term static load strength.

It was used temporarily, so you don't have to worry too much about the long-term static stress.

It wasn't a big problem when it was thick before, and it was only used temporarily, so you don't have to think about these problems.

Now this wooden block is only so thick, although I haven't checked the compressive resistance index of this oak wood, but I want to know that it is such a thick thing, if the iron ring on it is really installed along the texture of the wood, I am afraid that as soon as the screw is tightened, this wooden block will have to be cracked.

Of course, it's not without a solution!

Xu Yi thought of it, naturally he was going to find some suitable materials, and then add gaskets to the wooden block, and he hit the idea on the cork that had been peeled off and had dried out.

Walked over to the edge of the stack of wood, pulled off a piece of bark and looked at it.

The bark has dried up completely. It doesn't weigh as much in your hand.

Although it is cork. But after all, it has not been boiled. The tannins and other components in this cork have not been precipitated, so it feels stiff to the touch.

But no matter how you say it, this cork is still very thick, Xu Yi pinched it the inner side with his fingernails, and saw a shallow mark left, and then it calmed down little by little.

Xu Yi knew what to expect, so he put down the somewhat curly bark and pulled out a few relatively flat pieces of bark from the pile of bark. Hugged to the edge of the planer.

After measuring the thickness of the bark, Xu Yi then adjusted the machine, stuffed the bark into the planer, and shaved off the useless layer of bark on it, leaving only the milky white cork inside.

After all the bark was processed, Xu Yi took the cork, put it on top of the small band saw, sawed it into flakes almost one centimeter thick, and then sawed them all into small pieces of five centimeters square. It looks like a piece of dried tofu.

Then they are stacked on top of each other and a hole is drilled in the middle with a lathe. Xu Yi threw these cork blocks into a bucket, found something to suppress, and directly filled half a bucket of water and turned around and went to sleep.

After getting up and eating, Xu Yi walked to the edge of the steel bucket.

Although the color of the water in the bucket is still bright, it has already taken on a faint bitter taste, presumably because the tannins in the wood are oozing out.

Rolled up his sleeves and took out a piece of cork and played with it in his hand, the water-soaked cork became a little thicker than before, and it also had a heavy texture.

The two hands pinched the two sides of the cork and bent it, and the cork bent it casually, Xu Yi let go of his hand, and it was restored to its original shape again.

When Xu Yi saw this, he was relieved and went directly to process those oak squares into small squares that were four centimeters thick and five centimeters long.

Pick up a piece of wood, take two pieces of cork out of the barrel, shake off the surface moisture, sandwich it on both sides like a sandwich, and simply fix it with a gunnail.

After that, Xu Yi took the processed gasket, pressed it directly on the bottom plate, and took a bolt to try it. After the bolt passes through the bottom plate, the length of the bolt is only about one centimeter.

Seeing such a result, Xu Yi nodded with satisfaction.

Although this length is certainly not enough to hold the rails in place, when the nut is tightened, the cork will be compressed, so that the bolt should be two or three centimeters long.

This not only prevents the oak from being fractured, but also acts as a little shock absorption.

Xu Yi felt a pity that the bottom of such a base was empty, presumably this also had to be loud, and it was estimated that when this band saw was working, the sound would definitely be louder than when it was tested before.

But now there is no wood, and there is no spare time to take care of this, just wait for the future when there is more wood, and then clean it up when it is empty, or simply make a base plate out of the whole wood.

That way, you can solve this problem once and for all, and the bottom plate will be more durable.

After processing all the bolts and installing them on the bottom plate, Xu Yi went up to the bottom plate and simply fixed the bolts with a nut, so as to save the bolt from falling off because of its own weight when it was put down.

Xu Yi pulled the crane and lifted the bottom plate again, and then took a shovel and dug a shallow trench almost half a foot wide and more than ten centimeters deep along the small holes in the ground. After connecting all the shallow ditches together, Xu Yi dug along a shallow ditch all the way forward, until he dug into the ground beyond the range of the base plate before stopping.

After shoveling all the excavated floating soil outside, Xu Yi cleaned up all the broken soil on the ground and some sawdust, and prepared to start the sweeping work in earnest.

The scaffolding was useless, so Xu Yi first took a shovel and dug out a few wooden squares, stacked them on the ground, and then pulled the crane to lower the boards.

Seeing that the frame was pressed against the wooden square, and the steel cable of the crane was loosened and hung there like a loose string, Xu Yi climbed on top of the steel frame and took off the wire rope from the hook of the crane.

Remove the buckle, then pull the wire rope out of the steel pipe, and remove the steel pipe used to fix the wire rope, Xu Yi took the tool to nail the gap on the bottom surface of the bottom plate with a wooden board.

On both sides, the wooden squares that had been removed from the supporting base plates were removed, and the bottom plates finally landed firmly on the ground.

After walking around again, to make sure that there was no direction that was not next to the ground, Xu Yi took the board and nailed the top one to the top.

After shoveling a few shovels of soil in the shallow ditch exposed at the edge of the board, Xu Yi looked up at the bottom plate he had made little by little. It's a little rough, but I can't see any big flaws, and it's quite flat and square.

Xu Yi breathed a sigh of satisfaction, and couldn't help but feel a sense of accomplishment in his heart! (To be continued......)

PS: I have to say sorry to everyone who is still collecting this book, it's been broken for a long time. Busy, so I don't have time to write this, after all, as a book to entertain myself, along with a book that entertains everyone, the eunuch will not, but it is inevitable that there will be times when the doppelganger lacks skills and has no energy to write. Even now, I can't update it every day, so I have to say sorry to everyone: "I'm sorry." ”