Lu Fan has been very busy these days, busy killing monsters, or brushing space points.

The day after making the promise to build the city, Lu Fan began to build the city, but when it was really implemented, Lu Fan knew how difficult it was to make the promise of building the city that he had made for a while, and it was not something that could be achieved by words and dreams.

Especially for a young man like Lu Fan, he didn't even know how to build the city wall, and even where to build it.

But fortunately, Lu Fan is a glorious space adventurer, backed by a mysterious and great space, and for space adventurers, as long as there are space points, there is nothing that cannot be done.

After thinking alone for a long time but not even holding back a fart, in the face of Xiaoyu's pure big eyes, Lu Fangou jumped off the wall in a hurry, and a flash of inspiration suddenly flashed in his mind.

I can't think of it myself, can't I find someone to think about it?!

Thanks to the advice of his cheap daughter when he built a restaurant before, Lu Fan directly thought of artificial intelligence, and then he used his watch to find it.

Not to mention, there are so many of these things in the watch exchange list, what mechanical, biological, semi-mechanical, semi-biological, and non-material, all kinds of things.

Lu Fan, a semi-literate person, naturally has no understanding of this, and he can't tell the good from the bad, but he has a simple and crude cognition - expensive must be good! The more expensive, the better!

After winning an artificial intelligence worth 88,888 space points - CN-V. strategic optical brain core, the core scientific and technological product of Cangnan Federation, a large commercial organization in C54 middle space...... Well, it's not a match, it's just because this is the most expensive artificial intelligence that Lu Fan can buy with a watch, and there are even more expensive ones on top of that, but it seems that it can't be purchased because of permissions and other reasons.

In short, after deciding what to sell, Lu Fan took the little girl who had been named Lu Xiaoyu by him to start the business of brushing points, and it took nearly half a day to finally get together enough 88888 space points and buy this CN-V. strategic optical brain core - a five-story iron lump.

Appearance is not the point, the focus is on ability, to say that it is really a penny for the price, Lu Fan just told his general idea to Tie Pimple Light Brain, and in an instant, he simulated hundreds of thousands of city construction plans, from the site selection and grand blueprint of the entire city, to how to press the screws of a toilet, it can be said that it is very detailed, so that Lu Fan suddenly felt that he did not lose money when he bought things.

For things like urban planning, Lu Fan, who doesn't know anything, didn't look at these plans in detail at all, and picked a plan with a blueprint that was more pleasing to the eye and let Tie Pimple Light Brain implement it.

However, in the time that followed, Lu Fan fully understood what it meant to be self-inflicted and not to live.

The implementation of the city building plan cannot rely on utopian dreams, it needs to be implemented by labor or workers, the iron pimple light brain is just a light brain, to put it bluntly, it is just a brain, without limbs, it is naturally impossible to implement, and if Lu Fan wants to implement it, even if he is now physically superhuman, build such a large city...... If you don't get tired to death, you will be annoyed to death.

The most important thing is that the most technical thing Lu Fan has ever done in his life is to build a gold restaurant out of a material gun, which was done almost hand-in-hand under the guidance of his cheap daughter Lu Xiaomeng.

Therefore, if you really want to rely on Lu Fan to implement the city construction plan, it will definitely not work, he can build the toilet into a kitchen, but he needs a lot of professional construction workers, and there are many skilled professional construction workers, otherwise when Lu Fan is going to leave this world, it is estimated that the city wall has not been built yet.

Some people say that the most lacking thing in the 21st century is talent, Lu Fan feels that what he said is too right, at this point in time is the end of the world in the second half of the 21st century, let alone talent, everyone is lacking.

And even if he found someone, to be honest, Lu Fan didn't want to squeeze the labor force of those who already had nothing, because in that case, Lu Fan would feel that he was essentially no different from those scum he hated.

Fortunately, the iron pimple light brain that Lu Fan bought at a large price is indeed worth the money, not only does it have powerful intelligence and computing power, but it also stores a lot of scientific and technological knowledge far beyond the earth's civilization in the database, including a manufacturing technology for engineering robots.

After Lu Fan said this difficulty, Tie Lump Light Brain immediately recommended this engineering robot to Lu Fan, according to Tie Pimple Light Brain, this engineering robot can complete the workload of fifty 'Hill' in one hour, and the workload of one 'Hill' is about equivalent to building a ten-story steel building.

Therefore, as long as this kind of engineering robot can be manufactured, the labor problem can be perfectly solved.

Just like all the countries on the earth know the manufacturing principle of the atomic bomb and the space shuttle, but only a limited number of powerful countries can actually build them, having manufacturing technology and actually manufacturing them are two completely different concepts.

The Iron Pimple Light Brain itself has no manufacturing ability, as for Lu Fan...... Don't embarrass him.

Fortunately, Lu Fan has a magical material gun, as long as there is a manufacturing technology or prototype of the item, enter it into the material gun or scan it with the scanning function of the material gun, and it is only a matter of pulling the trigger a few times to make it.

Originally, after importing the manufacturing technology of this engineering robot into the material gun, Lu Fan planned to use the material gun to directly build this kind of engineering robot, but later, at the suggestion of Tie Lump Light Brain, he decided to build several automated production lines for engineering robots.

To be honest, if Tie Pimple was a beauty, Lu Fan would probably want to hug it and kiss it a few times.

completely makes up for Lu Fan's lack of IQ!

Ahem, ahem! Far from it.

In the same way, I want to think like this, but the production line is not said to be able to be made, and the manufacturing technology can be provided, but it also needs raw materials, most of the raw materials are in Lu Fan's material gun, but some core raw materials are not, such as 'Creman element', 'Thiel alloy', 'Finley Duosi blender' and other things that Lu Fan has never heard of.

Fortunately, Lu Fan is a glorious space adventurer, and as long as he has space points, everything can be purchased through the watch.

Therefore, Lu Fan once again devoted himself to the great cause of brushing points.

Although Lu Feng had heard of the raw materials such as 'Kliman Element', 'Thiel Alloy', and 'Finrydos Blender', the price on the watch was not high, and a few hundred space points could buy a lot, and Lu Fan ran around for less than an hour, and he had enough raw material points to make ten production lines.

Then Lu Fan bought raw materials through watches and used material guns to build ten automated production lines.

It should be said that high-tech is really high-tech, Lu Fan originally thought that the production line was the kind of very tall and bulky machines connected one after another, very long, very long, and one was about to occupy a large factory, but in fact, these ten automated production lines together did not have an iron lump and a large brain.

Of course, this is because the iron pimple light brain is indeed a bit big, but these ten production lines are also smaller than Lu Fan imagined, and each one is only a cube three or four meters long.

Then Iron Pimple Light Brain introduced that each of these cubes is an automated production unit, which can make some small robots, weapons, tools, etc., and can be combined to make some larger robots, weapons, tools, etc., which made Lu Fan cry out for black technology.

If you have a production cell, you have to make it work to make engineering robots, and to make it work, you need energy in addition to the raw materials used to make the robots.

The raw materials are okay, most of the raw materials are in Lu Fan's material gun, and they can also be obtained from this planet, and a small number of rare raw materials that Lu Fan does not have and do not exist on this planet can also be purchased through watches, and the price is not expensive.

Energy is a bit of a problem.

The best energy source is something called 'secondary energy crystallization', and a piece the size of a fingernail can keep a production unit up and running for more than a hill year.

Hill year is the orbital period of Hill Star, the capital star of the Cangnan Federation, the producer of the Iron Pimple Light Brain, which is equivalent to about 300 Earth years.

The 'secondary energy crystallization' is a by-product of something called the 'primary energy core', which is generally born in a small black hole.

To be honest, after listening to the explanation of the iron pimple light brain, Lu Fan was a little confused, the human beings on the earth seem to be only in the imaginary stage of cognition of black holes, and then look at others, it seems that they have begun to mine on it.

Later, Iron Pimple Light Brain explained to Lu Fan that low-level electrical energy can also make those production units operate, but the amount of electricity required for a single production unit to operate normally for one hour is about thirty trillion degrees according to the energy unit on the earth.

Lu Fan didn't know the counting unit of 'trillion' originally, but after asking the iron pimple light brain, he knew that one trillion was equal to one trillion.

When Lu Fan used to work in a factory, he would read some outdated newspapers when he was bored, and occasionally caught a glimpse of the newspaper saying that the largest hydropower station in China had an annual power generation capacity of 100 billion kilowatt-hours or something.

In the past, Lu Fan felt so powerful, worthy of his motherland, but after listening to Tie Pimple's explanation...... Made, what the hell is your 300-year-old electricity that is only enough for an hour?! This can't afford to put up so much energy for a bunch of nuclear power plants!

So after thinking about it, Lu Fan completely gave up the idea of generating his own electricity, and decided to honestly exchange his watch for the 'secondary energy crystal' that Iron Pimple Light Brain said.

The reason why Lu Fan has the idea of generating his own electricity is because compared to those cheap and rare raw materials, this kind of 'secondary energy crystallization' is simply surprisingly expensive, such as the iron pimple light brain said that a piece the size of a fingernail will cost 8,000 space points, and ten will need 80,000 space points, which is about to catch up with the price of the iron pimple light brain.

However, in order to make those production units work, no matter how expensive Lu Fan is, he has to buy them.

So after a short rest, Lu Fan devoted himself to the great cause of brushing points again.

80,000 space points is not easy to brush, even if there are many Aragami in this world, almost everywhere, but the value of a single Aragami is too low, most of them are the kind of 20 points a two-legged big-mouthed monster, a small part is the kind of gorilla that is 50 points, the kind of giant scorpion worth 200 points and another big cat is even less.

The most valuable Aragami that Lu Fan has killed so far is still a golden giant scorpion that he encountered when he was swiping points before, which is obviously a mutant of an ordinary giant scorpion or something.

Although the golden giant scorpion also did not escape the fate of being killed by Lu Fan in seconds, it brought Lu Fan a full 1000 space points, and Lu Fan was simply golden in his eyes in the subsequent brushing operation, hoping to meet a golden guy again.

But it's a pity that until Lu Fan has enough points to buy the Iron Pimple Light Brain, he hasn't encountered another one, I think there is only one within a certain range, after all, most powerful creatures have territorial awareness, and Aragami is probably no exception.

There are very few powerful Aragami, but there are many weak ones, just like the worker ants in the ant colony, they can be seen almost everywhere, but no matter how many they can be seen everywhere, they can't withstand the wave after wave of harvesting like Lu Fan cutting leeks.

Therefore, it was not until the evening of the first day that Lu Fan finally scraped together enough 80,000 space points and exchanged his watch for ten fingernail-sized 'secondary energy crystals', which was already the smallest unit that could be exchanged, and no matter how few people did, they would not sell it at all.

Coupled with the various raw materials that had been exchanged before, the ten production units were finally put into operation.

And as a price - with Lu Fan's temporary residence as the center, there is not a single desolate god within a radius of three hundred miles.

During the period of brushing points, Lu Fan also saved some people, back and forth a few times, back and forth, almost saving nearly 1,000 people.

In the spirit of humanitarianism...... Well, the main thing is that Lu Fan promised to build a city for Lu Xiaoyu that can shelter everyone.

In short, Lu Fan brought the rescued people back to his temporary residence, which was also the place where he was preparing to build a city, built some simple houses with material guns, and exchanged his watch for some food to settle them.

Of course, there were also people who were rescued who were unwilling to go with Lu Fan, and Lu Fan did not force it, after all, some people just have backbone and are unwilling to send people under the fence.

However, there are only a few people with backbone, and most of the people who were rescued by Lu Fan were closely united around Lu Fan as long as they had seen Lu Fan's miraculous ability, and they were even more obedient than the three good students, basically Lu Fan did whatever he wanted.

In fact, Lu Fan didn't let those people do anything, just thinking that the city he wanted to build would definitely receive a lot of people in the future, not to mention anything else, at least make a simple count of basic information such as name and gender.

found two Mao Sui to recommend himself, and he also looked at the more pleasing person in charge of this matter, and Lu Fan didn't care about it anymore.

The productivity of high-tech items is obviously beyond Lu Fan's imagination, the ten production units just buzzed for less than half an hour, and a full 200 engineering robots were created - more than two meters high boxy cubes, this is the initial form, according to the explanation of the iron pimple light brain, these engineering robots can change their form according to different working environments, and even can be combined with each other to complete some large-scale projects.

The energy of the engineering robot is provided by the production cell, with its own small energy storage device, which can work at full load for more than 300 hours at a time.

According to what the iron pimple light brain said, these 200 engineering robots are enough to undertake the construction tasks in the early stage, and they can be added if they are needed in the later stage, Lu Fan doesn't understand this at all, so he doesn't have much to command anything, let the iron pimple light brain look at it himself, and tell him if he is missing.

In addition to the need for workers, building materials such as bricks, cement, and steel bars are needed to build a house, and similarly, building materials are also needed to build a fortress city in addition to these 200 engineering robots.

However, this does not need Lu Fan to worry about, those production units can not only manufacture engineering robots, but also manufacture such as 'armed robots', 'medical robots', 'agricultural robots' and 'life robots'...... And so on, all kinds of robots, weapons, tools, etc., among which there is a kind of 'mining robot', which can mine and refine various ores and then process them into various building materials.

So after building 200 engineering robots, the ten production cells tumbled and assembled together, and in a moment of buzzing, ten mining robots were built.

Similarly, these mining robots are cubes of eight or nine meters square, which can also change shape according to the working environment, and can also be combined to mine some large ores.

In short, Lu Fan has some understanding of the technology of the Cangnan Federation, and I am afraid that it was not developed from Tetris......

After building these ten mining robots, Tie Pimple reported to Lu Fan that those rare raw materials had been used up, and he hoped that Lu Fan could buy them again, because some other varieties of robots would be built in the future, and some places in the early construction process would also need to be used, and some energy crystallization was also needed to maintain the operation of some buildings, as well as some living materials, plant seeds, animal embryos, etc.

Lu Fan listened to the first two big, and the little fish was already sleepy after running with him for a day, so Lu Fan asked Tie Pimple to think about what else he needed to buy first, make a list, and he would do it tomorrow.

With the computing power of the iron pimple light brain, the list was naturally listed in an instant, and uploaded to Lu Fan's watch, Lu Fan didn't look at it, but took Xiaoyu back to his temporary simple house, set up a soundproof magic circle, and coaxed Xiaoyu to sleep, while continuing to comprehend the 'super fierce exercises' in his mind.