I am a primitive

Han Cheng carefully looked at the two things in front of him for a while, and looked at them back to back.

After seeing that they were very neatly aligned, they started to move.

But before doing it, he still recalled in his mind the matter of making the compass in his later generations, so as not to make any mistakes.

After a while, Han Cheng officially started.

He started first, using a thin drill, to drill a small hole in the center of the two things one by one.

The two copper objects were then bonded together with isingas glue.

Then a small copper rod with a particularly smooth top was stuffed into the hole in the center, and fixed with fish bladder glue.

After finishing these, Han Cheng brought another round piece of cardboard...

-------------Chapter Dividing Line---------------

The four directions of east, west, north and south are marked on the circular piece of paper.

And between the azimuths, the degrees are evenly carved out, and nine spaces are carved out between each interval.

That is to say, there are ten degrees between each space.

In fact, it can be described in more detail and more precise.

It's just that the compass that I'm trying to make for the first time is still a bit small. If you continue to draw it with a quill pen, it will appear too bloated and messy, but it is not easy to identify.

But these are minor problems, as long as you want to be meticulous, then when you make it later, you need to divide and plan carefully.

Now that this production is successful, then these are small problems.

There is a small hole in the middle of this circular cardboard piece, which can just fit on this small circular bronze column, and its size matches the circular bronze base below.

The underside of the circular piece of paper has already been coated with a layer of isingas gelatin, and after being pressed down, it just meets the bronze bottom below.

After finishing this, Han Cheng brought over the magnetized iron needle.

This needle is not an ordinary needle, but Han Cheng asked the people in the tribe to customize it.

The two ends are pointed, the middle is wide, and there is a hole in the middle, which can just fit it on the small bronze pillar in the middle that is used as a shaft.

After some debugging, I got something like a 'hat' and put it on top of the bronze pillar for fixing.

Of course, this kind of fixation is the kind of fixation that is not next to the pointer.

The purpose is not to fix the pointer, but to prevent the pointer of the compass from slipping off the bronze post after the person holds the compass upside down in the future.

This time before assembly, Han Cheng made some adjustments and experiments in advance, trying to do everything as well as possible.

So after this set of procedures, after assembling these things, there is no embarrassing situation when making a simple compass before.

After Han Cheng installed it, made some small adjustments, and placed it flat, the half of the pointer that Han Cheng tried to dye red was already pointing firmly to the same target Han Cheng marked the north with a red pen.

Han Cheng shook it back and forth a few more times, then put it down, and went to look at the effect of the compass.

The purpose is to test the quality of the compass.

As far as the current situation is concerned, the quality of the newly manufactured compass is still very good.

After being shaken by Han Cheng like this, there was no such thing as falling apart.

Han Cheng laid it flat on the table, and the pointer soon pointed to the north and south sides respectively.

Seeing this, Han Cheng couldn't help showing a satisfied smile again.

In fact, this compass still has some shortcomings.

The downside is the lack of a transparent cover.

If you get a transparent cover to seal it, it will be perfect.

In this way, this transparent cover can be used to protect the parts in the compass, and the damage from external forces will be as little as possible.

In Han Cheng's impression, there are only a few types that can take on this important task-glass, plastic, and some extremely high-quality crystals!

But these things are not available in the tribe now, and it is useless to think about them.

What Han Cheng can do is to use some good quality and more suitable leather to make an opaque cover to cover the compass firmly.

Open it when in use and close it when not in use.

Although there are no transparent covers that are convenient and beautiful to use, they can still provide some protection after all, which is better than no cover.

Holding this soft cover covered with leather, no matter how you look at it, it looks a little awkward, Han Cheng couldn't help but feel a little moved inside.

Perhaps, in addition to using this kind of leather cover, our own tribe can really make some transparent things as the cover of this compass!

Of course, it is not a pure and flawless crystal with excellent transparency.

To be honest, there is no such thing in the tribe now. It is not uncommon to see high-quality jade and rough jade, and a pile of them is piled up in a house.

Plastic is not good either. Although it is very common in later generations, and once became an important part of pollution, at this time, Han Cheng wants to experience this kind of happy trouble, but he can't feel it...

What Han Chengzhi was most excited about was glass!

Because just now, his heart suddenly moved, and he remembered an online novel he had read.

Some of the protagonists above rubbed out the glass, and then took advantage of the opportunity to reap a lot of people's amazement, and at the same time, there was a lot of wealth and status that rose rapidly.

In the later generations, Han Cheng was a person who liked to read novels more. He was a fairy tale at the beginning, and then slowly changed to history, and then he basically read history.

Many historical novels have one characteristic.

That is the people who have traveled back, and many of them can remember the production methods of many things, such as glass production, horseshoes, efficient modern steelmaking techniques, and so on.

These things will promote the development of the plot, and can also bring a lot of big gains such as pretending to be aggressive, making a fortune, and so on!

As a person who has been immersed in such novels for some time, Han Cheng thought of something about glass manufacturing at this time, which is also reasonable.

After all, there are all kinds of strange knowledge in these books.

Even Han Cheng himself believes that if he can remember all kinds of strange knowledge written in the history books he has read, then he will be able to lead the Qingque tribe to quickly realize one after another. Take off one by one!

Even able to quickly step into the industrial age!

After all, there are too many strange things in there!