Lin Chenxi clapped his hands with satisfaction and said, "The blank has to be left for two days before it can be used, now let's make a 3D printer first." ”

"Hey, finally made a 3D printer?" Lin Ziyu was overjoyed, with this machine, his own figures and big toys or something were gone.

"Yes, Dad, are you happy?" Since Dad likes it, as a daughter, he naturally has to fulfill his wishes.

"Of course it's happy. "With this 3D printer, you can do whatever you want, such as figurines, although some merchants are still conscientious and beautiful, but the posture is limited after all, and they are reluctant to buy it. When you have a 3D printer, you can do whatever posture you want, how cool is that?

"Xixi, what type of 3D printer do we?" Lin Ziyu roughly knew that there were several categories of 3D printing, and their uses were also different.

"The existing 3D printers are too slow, so let's make a new type. ”

"A new type?"

"There is a planet in the universe, called Xiaoyuxing, this planet has a kind of coral algae, under normal light, it will secrete limestone like the corals of our earth, but when the light turns to ultraviolet light, it will secrete a polymer substance similar to plastic, but the physical properties are close to steel.

We only need to take advantage of this property to build a machine equivalent to a 3D printer. ”

Lin Ziyu was dizzy when he heard it, "I don't understand very much." ”

Lin Chenxi explained: "It's equivalent to using polyps to make corals, just using light to induce the coral to grow the way we want." ”

"I see. The girl's explanation was easy to understand, and Lin Ziyu understood it at once, but he still had some doubts: "Although this method is good, will it grow too slowly and roughly?"

"It's not too coarse, corals are single-celled organisms, only 25 microns in size, and the processing accuracy is less than a filament, which is completely sufficient. But it's true that it grows slowly, and it can only grow 2 centimeters in one night. ”

"Two centimeters, so much?" After Lin Ziyu gestured, he was suddenly disappointed, this is too slow!

"Stupid Dad, this speed is much faster than the current 3D printing!"

"No way, don't lie to me, although I don't know very much, but 3D printing is definitely faster than this. ”

"It depends on how you compare, processing parts with small cross-sections, naturally 3D printing is fast now, but processing parts with large cross-sections, of course, this kind of coral algae is fast. ”

3D printing, to put it bluntly, is to divide a part into layers of pictures, and then draw them layer by layer in order.

In today's 3D printing, this picture is drawn line by line, and what affects its speed is the size of the volume of the part. And coralline algae is equivalent to using a printing board, a print is a painting, although the printing is slow, but it can't stand it to print a layer, the impact of the processing speed is not the volume, but the number of layers.

With this feature, you can make full use of the space in the 3D printer and process multiple parts at once. For example, the special bomb on his bus has more than 30,000 mechanical flies and requires more than 1 million parts. If it is processed by conventional methods, it is simply impossible to complete it in a few months, but with this coral-algae printer, as long as the image is drawn, copied and pasted, and tiled within the scope of the workbench, it can be processed in one night, which is far from being achieved by other machines.

"Hey, it sounds like it's not slow, okay, let's make it!"

There's really no other choice. ╮(╯▽╰)╭

The principle of this 3D printer is very simple, the only difficulty is the coral's algae's life-sustaining equipment and projection equipment, the life-sustaining equipment is very important, you need to make the growth environment of coral-algae consistent, otherwise some places grow fast, some grow slowly, the accuracy of the parts can not be guaranteed, the projection equipment is also important, it is required not to astigmatism, durable and high resolution.

These things are not difficult to design, but they are very complicated, and there are many materials used, Lin Chenxi can't make them, so he can only find a whip starman, who called the whip star man still owes himself a lot of debt.

This time, the whip star man didn't dare to bargain too hard, he was afraid that once the debt was paid off, this terrifying alien would slaughter him, but he couldn't help but bargain, after some fierce bargaining, the whole set of equipment ended with the equivalent of two coins. This whip star is also a thief, pretending to be a heartache that you have suffered a big loss and you have taken a big advantage.

Lin Chenxi opened a space door, connected to Xiaoyu Star, obtained a sample of coralline algae, handed it to the Whip Starman, and sent him back, and agreed to receive it in three days.

When I returned home, I smelled a fragrance as soon as I entered the hall, and it turned out that Dad Lin came over to make breakfast for his son and granddaughter through the space door set up last night.

Lin Ziyu shrugged his nose and asked, "Dad, what are you doing?" ”

Dad Lin replied: "Seafood porridge, wait a minute, I'll sprinkle chopped green onions and you'll be ready to cook." ”

"Seafood porridge, this one is delicious. Thinking of the deliciousness of last night's seafood porridge, Lin Chenxi drooled.

"Xixi, you go and call grandma over, I'll wash the dishes first. ”

"Oh, okay. When Lin Chenxi heard this, he was going to call someone.

Dad Lin hurriedly called his granddaughter: "Don't, this is not good, I'll go back with some porridge and heat it in a pot." "If you don't eat at home, it's easy to be suspicious, after all, it's all in the same village, all are familiar, you don't make a fire to cook, don't eat breakfast, this is full of violations, once or twice is fine, it's strange if you don't think elsewhere.

"Well, let's take some more meat back. Lin Ziyu understood as soon as he thought about it, it's not that the two elders don't want to eat with their sons and granddaughters, but they can't, it is estimated that Lin's mother is cooking on the fire now, uh, maybe there is no porridge in the pot, it's just water.

"I'll give it to Sheng. Lin Chenxi happily snatched the porridge spoon and put it on a plate next to him.

Watching the girl put pieces of shrimp and crabs on the plate, Lin Ziyu hurriedly stopped: "Girl, just serve the meat, don't serve the shell." ”

Dad Lin also said: "Yes, yes, yes, if we are recognized by the villagers, we will think that we have made a fortune." "Dad Lin is not going to eat alone, but is going to give some to the children in the village, so as to satisfy their cravings, this is a lobster and a crab, it's not a lie.

"That's it, I understand!" Lin Chenxi fished out all the shrimp and crabs on the plate with a leak net, and then picked out the snow-white meat again and put it on the plate.

By the time the plate was filled, there were only some shelled ones left in the pot, not even much porridge.

Dad Lin was a little apprehensive: "Why don't you pour some back?"

"What's the matter, we still lack this bit of meat? Grab as much as you want, and then cook another pot." Lin Ziyu waved his hand indifferently, and then said to his daughter: "Xixi, this pot is too small, make a bigger one." "Although this pot is a big soup pot, tall and not small, it is really too small for the amount of food that the girl eats.

"But, Dad, where did you get this pot?" If it was before, it would be nice to dig a big iron pillar from somewhere else, but now Dad won't let you do this, which makes it difficult, can you find materials from the garbage dump?

"Get it from Lotte's warehouse, be careful, don't let anyone find out. "Lotte is a stick company, and it is the pioneer who supports THAAD to enter South Korea, and Lin Ziyu has no pressure at all to follow its things.