Doomsday disaster: Start by building a shelter

in the new version.

The length of the mini excavator has been increased from the original 1.5 meters to 4.4 meters. The soil that the bucket can dig each time increases from 0.04 cubic meters to 0.2 cubic meters.

The overall construction efficiency increased by about 5 times.

This brand-new excavator can no longer be described as miniature, but can instead be described as small. It has truly become a professional construction tool, a tool for construction in the industrial era.

The size of the micro transport vehicle has grown even more exaggeratedly.

The length of the entire vehicle has increased from less than two meters to six meters. It can carry up to nearly 20 cubic meters and 50 tons of cargo.

Using this new type of transport vehicle, named Ore Type 1, to transport earth and rocks in one trip is enough for the micro transport vehicle to make seven or eight trips back and forth.

And as its size grows, it can also be equipped with a more powerful electric engine.

The driving speed has also been improved to a certain extent, basically reaching 50 kilometers per hour.

At this speed, it can almost be used as the main vehicle for long-distance transportation, freeing large trucks from the task of transporting scrap metal and construction waste in urban areas.

After all, those things are considered garbage to begin with.

Not afraid of high temperatures or any other extreme weather damage.

Transporting goods in fully enclosed and insulated compartments of large trucks is somewhat suspected of being extravagant and wasteful.

The open body of the Type 1 ore transport truck is a professional counterpart to this.

Costs were kept to a minimum.

As for the gravel bike, there’s not much to say.

It is simply to expand its size proportionally to obtain a more efficient ability to break rocks.

"First make two new gravel vehicles."

"Then we will make four small excavators and a type-1 ore transport vehicle respectively."

Deliver new design drawings to artificial intelligence.

Su Wu carefully arranged the first batch of manufacturing tasks for CNC machine tools and 3D printers.

The size and efficiency of the new construction vehicles have been greatly improved, which also means that the materials they consume have also increased significantly.

At present, the shelter has invested almost all qualified ordinary metal materials in building industrial equipment recycling centers.

The materials that can be used to build new versions of the vehicle are extremely limited.

Therefore, Su Wu must give priority to allocating the number and models of the first batch of production vehicles according to the severity of the tasks and the level of efficiency.

"Wait until manufacturing is complete."

"All gravel trucks will join the engineering team to speed up the excavation of the fifth underground space."

"Don't say anything else."

"At least the site for a large warehouse must be dug out first."

"Then, small excavators and ore transporters."

"Half will join the engineering team, and the other half will go out to support the city's waste-picking fleet."

Limited by size and power supply.

The high-temperature furnace at the recycling center can only smelt a maximum of ten to twenty tons of scrap metal a day.

If you need to smelt other different metals and materials, you have to use another furnace.

Efficiency is further reduced significantly.

And corresponding to this.

The scavenging fleet transports at least 40 tons of scrap metal every day. In addition, in order to compete with other shelters and snatch resources from the ruins of the city, Su Wu is still working hard to increase the size of the scavenger fleet.

Back and forth.

The gap will only grow.

And therefore.

Before the accumulated scrap metal fills up the inside of the small bunker on the ground, continuing to find a warehouse that can accommodate it has become the most important thing at the moment.

After all, even if it is scrap metal, its value is not low to Su Wu.

It cannot be placed carelessly in the open space on the ground.

"Just keep going step by step."

"Not long."

"We should be able to build a town-level underground shelter."

Su Wu delivered the completed plan to the artificial intelligence for execution.

He leaned back on the soft chair and breathed a sigh of relief.

And at this time.

Out of the corner of his eye, he seemed to catch a strange purple light from the surveillance wall.

Raising his head, Su Wu looked at the source of the light and found that they came from the sky outside the shelter.

The layers of purple light penetrated the haze clouds that were several kilometers thick.

Like gauze woven from spindles, it hangs down from the sky.

"aurora?"

Su Wu really wanted to describe it this way.

But those purple sky lights are like a bottomless black abyss.

As soon as he saw it, he couldn't help but feel a wave of trembling and fear from the bottom of his heart.

It feels like an animal encountering a natural enemy.

Or maybe it's like knowing that you are facing radiation, and your whole body is gripped by terror and despair.

At this moment, even if there is no evidence yet. Su Wu still subconsciously determined that this was definitely not a good thing.

Correct your sitting posture again.

The main screen in front of General Su's console was connected to the surveillance camera on the ground.

Control it to adjust the angle slightly.

Include the horizon and sky beyond.

Under a wider field of view, endless purple light descended from the sky, rendering the wilderness slightly discolored.

And at one point, it was near the mountains on the other side.

A group of unknown birds fluttered their wings from the mountains.

Then, not long after they were in the air, they quickly ran out of energy under the terrible high temperature in the air and fell back to the ground.

At the same time.

These birds, as if they had not seen what happened to their predecessors, continued to rush to the sky.

Until they also fell to the end of their lives, they did not change at all.

Su Wu witnessed the whole scene, and his eyes were unconsciously covered with a layer of haze.

His heart was lingering with an inexplicable strong uneasiness.

After more than ten seconds of silence.

Su Wu made some moves again.

He controlled the surveillance camera and continued to patrol the surface of the shelter.

From the piles of construction waste, to the small bunkers standing quietly, to the shelter exit covered by the bunker.

Finally, when he saw the miniature transport vehicle carrying soil and rocks slowly driving out of the bunker, his eyes moved slightly.

"This place is not safe enough."

Su Wu pondered.

Pull out the three-dimensional map of the shelter and keep the mouse light on the exit passage.

Since the engineering team needs to constantly transport the excavated soil and rocks to the ground, the exit of the shelter needs to be opened frequently.

Although it will be closed immediately after each opening to allow the transport vehicle to pass through.

But this cannot withstand too many opening and closing times.

The total opening time accumulated every day is not a small number that can be ignored.

And in this way, once there is an unexpected accident.

For example, a raid by an armed team that can bypass surveillance and lurk at the door of the shelter. Or various natural disasters without warning, etc.

The open door of the shelter is likely to become a fatal weakness.