The experience of the dwarves and goblins is invaluable to Lin. Whether it is their secret techniques for working with metals, or their insights into the use of different metals, they are not comparable to those of a self-taught magician.

Needless to say, whether it was a dwarf or a goblin, and even Lin had made some adhesives for magic metals before. These binders are actually made from other magical materials. A good adhesive is not just about joining two different metals together, but it can even connect the power transfer between each other to become a 'whole'.

As for issues such as high temperatures and aging, adhesives for most magic materials are non-existent. To unbond the state, there is a corresponding potion. The ingredients of the potion are also different, and as long as you don't have the right medicine, it is a luxury to want to break the bond.

This is one of the reasons why dwarves and goblins consider these methods to be secret. No one wants their potion recipe to leak out so that others can easily destroy their work.

As for the same material, it is better to deal with it, a magic shaping technique, you can knead multiple materials of the same material together like playing with clay.

As for the tightness, it is a little more troublesome. Previously, Lin also wanted to find rubber, or extract similar plasticized products from crude oil, to make seals. But both the dwarves and the goblins have come up with a very fascinating way to solve such a problem.

When materials of the same material are joined, they are directly fused with molding, and there is no joint point, so there is no need to consider the tightness. However, for the bonding of materials of different materials, the two metal ingots are first glued together with adhesive, and then combined with shaping, high temperature, and forging, a three-pronged approach can force out the bubbles that may exist at the joint surface.

On Earth, two objects that have been formed are held together, and because the parts have been formed, there will inevitably be some gaps at the joint surface that are not visible to the naked eye. In order to fill these gaps, it is necessary to assist with items such as clamping and gaskets.

But in the past, it is normal to shape and process the object as a whole after it is glued. In this process, the bubbles and cracks that may be generated are completely eliminated, which is the most basic operation for the craftsman who is obsessed. However, this kind of basic skill is a 'common sense' that a magician who has not studied under a teacher who specializes in making utensils will not have.

It seems that the principle of interlacing is like separating mountains, and it makes sense in the maze.

In the case of an artifact, a mage can make an item ornate and attach powerful magic. But to make the basic items to the extreme, it is still not as good as the dwarves who have been dealing with metal for most of their lives.

As for the experience of the goblins, it is the courage to try. Find an 'okay' path from constant mistakes. But the most valuable to Lin are the ones that have been proven to be unviable. Fewer detours means that you are closer to the right answer.

The strengths of these three races fused together, combined with what Lin had learned before crossing the road, to work together to create a mechanism item that had never been seen before in the Lost Land, a fuel engine made of magical materials. In fact, how far this engine can go, no one is sure. Earth doesn't have the power to do that. It can't be said that because of the power, this engine has solidified the enchantment with nitrogen......

Maybe that's a good idea. On Earth, the nitrogen and oxygen acceleration system cannot be used as a regular equipment because of the material strength of the engine body, which cannot withstand high temperatures, high speeds and long hours of operation. But the ones that were used to make engines were all specially selected by Lin, and they themselves had magic metals with enough high temperature resistance, toughness and hardness.

But don't be too ambitious just yet. In terms of experimentation, the engine in front of me is not only the first power plant I built, but also full of various experimental ideas. These work as they should, and then consider the rest.

Finally, I don't know how many times I tested the car, and this time my confidence was even higher than the previous ones. Since there is no special horsepower and torque measuring machine, one can only make a judgment based on throttle changes, revs, and maintenance time.

The reason why the previous engine was rated as failing was that the speed would fluctuate and could not be fixed while maintaining the same throttle, and sometimes the speed would decay. It is speculated that the possible cause is the uneven weight distribution between the crankshaft and the piston.

Because everything is made by hand, there are subtle discrepancies with the help of blueprints and rulers. Especially since the dwarves and goblins had not paid much attention to such small differences.

It was only after a few failures that they took seriously the little things they didn't care about. In fact, Lin can understand their approach. Because for a single piston, whether it is a dwarf or a goblin, the weight can be unmisplaced, and the appearance is perfectly round without any deviation. Because that's how they've been honing their skills all along.

But they haven't done this kind of thing that ends up putting different parts together into a whole. If you want to say something similar, it might be the full-coverage armor. However, a good armor maker will make some slight adjustments due to the user's habits and physical characteristics, and will not achieve perfect symmetry. The only Chinese network

It can be said that for the first time, they have to reproduce their perfect work, and it must be exactly the same, without the slightest deviation. In this kung fu, someone doesn't have the skills of dwarves and goblins, so they can only do the most easily complained about job - quality control, which is responsible for telling others that the quality of the products is not up to par.

In this way, after several failures, it was only then that Jermaine and Totokani believed that it was not as easy as imagined. And cheer up, with 100,000 points of seriousness. In the end, I have the confident work in front of me.

When it comes to the last engine, they also say that it is a work of confidence. Then, as soon as it was launched, there was a violent vibration, and the shock actually fell apart in the end. Someone is also speechless.

Jermaine expertly connected the measuring instruments to various parts of the engine, and after pouring fuel and lubricating oil, he immediately started the engine that had been once again and again pinned on high hopes.

The lubricating oil is made from animal oil, and it takes a lot of effort to remove the protein components from the oil. But the effect is surprisingly good, and it is not lost at all to those synthetic motor oils that were used when they were on Earth.

After the magic stone that replaced the Mars plug had the power to flow through, it immediately generated a micro-electric current, igniting the oil and gas in the cylinder, and the engine started smoothly in no time. At idle, the engine revs are fairly stable. And the vibration of the body is also much weaker than the previous test work. This means that the internal counterweight is well balanced so that there is no unwanted vibration.

As the throttle increases, the amount of fuel intake increases, the rev increases further, and the condition is stable. And when the oil level of the temporary small tank reached the warning line, the experiment was declared over and successful. This means that a certain amount of fuel has been consumed and everything is in good condition and there is no need to interrupt the experiment.

If the experimental engine had not been tested for tens of thousands of hours of continuous operation on Earth, it would not have been possible to commercialize it. But there wasn't that time, and there wasn't enough fuel to waste, so Lin asked Jermaine and Totokani to start working on the second engine, while he had another job himself.

But before that, you need something from the Silverbeard Dwarves.

"What, you have to take the energy center of the peace armed forces and use it on the airship." Jermaine exclaimed in surprise.

"Strictly speaking, it's a special magic stone mechanism inside, and the control assembly will remain." Lin Xin replied calmly.

"But in this way, the peace armed forces are not the same as being scrapped. I can't agree with that. ”

"First of all, I have to say that for the sake of everyone's lives, Totokani handed over his airship, and I also contributed most of the materials I collected. I'm just asking you for a special magic stone mechanism, and I haven't dismembered the peace forces yet. Besides, after all this waiting, do you still have expectations for the natural recovery of the energy center? You can also see the measured values, from the middle of last year to the present, more than half a year has passed, and the recovery of the energy center is not even one percent. Rather than expecting the peace forces to be restored while waiting, it is better to find ways to introduce other ways of using power. In fact, since you agreed with me to study the peace armed forces, I have had a set of plans, but I have not been able to find suitable materials, so it has been delayed until now. And if we want to get out alive and repair the peace armament, the special magic stone mechanism is indispensable. ”

Lin didn't say anything to death, and promised to help restore the peace forces' energy centers. More importantly, according to the current progress, it may take millennia to expect the natural resumption of peaceful armed forces.

For a simple example, when a person has 100 million yuan in his bank account and loses 100,000 yuan, the remaining money eats the bank's live deposit interest, and it only takes a few months to close the loss of 100,000 yuan. However, if there is only 110,000 yuan in the account, after a loss of 100,000 yuan, and the interest on the live deposit is earned by 10,000 yuan, it will take the year of the monkey to restore the account to the amount of 110,000 yuan.

This is the problem faced by the peace forces of the Silverbearded Dwarves.

And the special magic stone mechanism that is going to be used is actually like a battery, responsible for storing a lot of power, but now this battery is empty. Lin plans to transform it into a simple energy pool on the airship and connect it to the magic circle of the entire ship. Although it cannot generate power on its own, it must at least be able to store it, which guarantees the endurance of the airship.

One is to understand the current situation; The second is that the current silver-bearded dwarves are not as tough as they used to be; The third is that, as someone has said, the hope that the energy center will be able to return to a usable state may be far away. Instead of maintaining the present, it is better to trust this magician again.

So, despite their reluctance, the Silverbeard Dwarves agreed to hand over some of the parts of the Peace Force.