After thinking about it for a night, Gou Ke, who woke up in a daze the next morning, had a general idea of what to do next.

First of all, the urban area must not be able to stay, the hoarding of materials and the use of technological items need to hide people's eyes and ears, and you have to go to sparsely populated places. There are fewer people, fewer eyes and ears, and fewer corpses that will appear after the end of the world, which is safer. But on the other hand, the supplies needed to meet the end of the world still need to be solved in the city, which means that the location where Gou Cao built his shelter cannot be too remote. All things considered, the far suburbs in the north of the city are a good choice.

As for the issue of materials and energy, Gou Cao knew that there was an auto repair shop in the north of the city that had been enforced by the court along with the supporting equipment and grounds, and it was now in the auction stage, and if Gou Cao could buy it, he could use a large amount of electricity and hoard daily necessities and fuel under the guise of auto repair war.

In this way, the fence of the auto repair shop can be reinforced, and the security problem can be initially solved. As for the reinforcement materials, although the metal materials in the garage have been disposed of, there are several old metal recycling stations nearby, from which you can use the printer and the supporting equipment in the garage to dispose of them.

Although Gou Ke has no relatives and no reason, the plant area is not large, and he can keep it alone. If you have enough supplies, you can always be there as a lock turtle. As for the problem of material production, it should not be a big problem to buy a batch of grain seeds and plant a piece of land within the factory wall with the help of 3D printers.

Then the rest is a matter of medicines and fertilizers. Medicines can be used to make poisons, and chemical fertilizers can be used to make home-made explosives, so if they are purchased in large quantities, they will be investigated by the relevant authorities. Fertilizer is good to say, and organic fertilizer can be made from excrement produced in daily life. But medicine is more difficult to do, and I hope that using a 3D printer can help.

Then the subspace storage equipment and 3D printers left by the future people will be tested, and Gou Ke plans to wait until he moves to the auto repair shop.

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Two months later.

Gou Cao successfully auctioned the auto repair shop at a price of 1.5 million, and went to the Industrial and Commercial Bureau to register a self-employed industrial and commercial household, mainly engaged in automobile maintenance. The business license will not be revoked until there is no business activity for more than two years, which is enough to take it to stock up.

There is a small room in the factory that is very suitable for living, Gou Gou vacated it and moved in, although there is a smell of gasoline but the water, electricity and heating network are sufficient, and the requirements of the end of the world can not be too high.

There is a new home, and there is a purchase channel. Ten months to come. Gou Ke was able to test the storage devices and printers left to him by the future people with peace of mind.

The first is the subspace storage device, which contains enough distilled water, enough iron, and enough air in three separate parts. In the end, the quality of what could be accommodated was not much different from the previous predictions. But after all, the substances that can actually be tested will inevitably have some impurities, so some small discrepancies in the data are inevitable.

As previously speculated, whether liquid, gaseous, or solid, a subspace storage device can outfit objects in any state. In terms of weight, the storage capacity of a subspace storage device is greater than iron and nitrogen than water. In terms of volume, the storage capacity of a subspace storage device is greater than nitrogen and more water than iron.

Actions such as changing the shape of iron, compressing the volume of nitrogen, or heating water into water vapor do not affect the amount of material that can be stored in the subspace storage device. It can be seen that subspace storage devices are only limited by the number of particles contained in the object, and are not affected by other characteristics of the stored object.

Before putting the object into storage, measure the temperature of the object, then release it and measure the temperature again. The result of several tests is that the subspace storage device also has a thermal insulation effect. No matter how long it has been placed, no matter how the outside temperature changes, what temperature you put in and what temperature you take out, it will be the same as if you take it out.

Using small mammals and strains of experiments, the test results show that the subspace storage device will kill all the organisms stored in it, with a good sterilization effect, combined with the above test of the thermal insulation effect, the preservation effect of the subspace storage device must not be bad.

Then there is the test of mixed storage of multiple substances, and the test results show that the substances placed in it do not affect each other at all. Put water and salt together, take out the water is still water, salt is still salt, as long as you take it out separately, there will be no situation where the salt dissolves in water. The same is true for two or more substances that will have a chemical reaction when put together and do not affect each other. It's quite a handy feature.

Finally, it was a test of the preservation effect, and sure enough, it was quite good, and when the food put in was taken out, it was like the one that had just been put in, and there was no change at all.

It took half a month to complete all the above tests, but it was worth it, survival in the last days must be familiar with their tools, and after the disaster, there will not be such a stable and sufficient time and materials to test Gou Cao.

Then there is the most critical portable 3D printer, there are also 3D printers in the era in which Gou Cao lives, but the details of the printing are quite rough, the use of materials is also limited, and the strength of the printed materials is also very questionable. In contrast, the printer handed over to Gou Cao by the future man can achieve atomic-level material rearrangement, and the accuracy and quality of the battle are quite high.

It took half a day to familiarize myself with the printer's own copying effect. If you scan an item with a printer probe, you can print a replica that looks exactly like the original, as long as the size is limited to one metre in length, width and height, and the material and energy supply is sufficient.

The printing material only needs to meet the requirements of the number of atoms of the same kind contained in the material. Gou Cao tried to print the glass with sand as the raw material, and then used the glass as the raw material to print the glass, and the promised glass data was completely consistent. It's just that when using sand as a raw material, it consumes more electricity.

It is also possible to print the diamond results with toner, but unfortunately this thing will not sell for much without a certificate of origin and some other relevant certificates.

It is possible to sell the simple silicon printed with sand and gravel, but unfortunately the output is quite small due to the limitation of electricity. And Gou Cao has to do other things with printers, so the plan to increase the budget by selling simple silicon has to be abandoned for the time being.

Then I bought all the medicines I could sell. The amount is not large, but there is a lot of variety. Using the copying function of the 3D printer, you can print the same effect of the drug, as for the raw materials, most of the drugs in the world are organic, so the molecular structure is complex, and the element composition is often relatively simple. In this way, the problem of drug stockpiling has also been solved

The above test took another half a month. But at the same time of testing, Gou Ke did not relax the procurement of materials. Purchased oil and metal materials fill most of the warehouse. The food and seeds were going to be bought later. Next, it's time to reinforce the garage to add security to your post-apocalyptic survival.

But before that, let's have a bowl of noodles.

Suck and slip.