"Damn, this seems a bit unreasonable..."
After carefully thinking through the three requirements, Xu Kai fell into despair for a moment. He felt that he had dug a big hole for himself.
These three requirements seem to be incompatible...
At this time, Borg had already completed the initial design sketch.
After looking left and right, he nodded with satisfaction and began to search on the work platform.
A soccer ball, as a playable ball, is generally divided into two parts: the liner and the cover.
And because the liner and the surface will eventually be perfectly combined under the pressure of atmospheric pressure, the materials are basically the same.
The materials used are nothing more than PVC, PU and genuine leather.
The first is PVC material, which is also called polyvinyl chloride. It is cheap, but it is seriously affected by the climate and is inherently prone to deformation and blistering; it is more prone to cracking in winter.
Therefore, in terms of practicality, this material cannot be considered the best.
The second is PU material, polyurethane. This material is good, less affected by temperature, and not easy to deform. The only disadvantage is that it is a bit expensive.
Finally, there is the leather material. Although it has a very high B-grade, the leather material is easy to absorb water and needs careful maintenance, otherwise the ball will be deformed in a matter of minutes, and the price is extremely high...
So after a comparison, Borg chose PU material without hesitation. This material is the most cost-effective choice among the materials currently available.
After selecting the material, Borg began cutting and sewing the liner.
However, when Xu Kai saw this scene, he always felt that there was an inexplicable sense of inconvenience everywhere.
Who made the rule that a football must have an inner liner?
With this inner liner, do you still expect this thing to be portable and convenient?
You have to leave some space wherever you go, and when necessary, you have to bring an air needle and an air pump, otherwise you may not be able to use it?
Regarding this phenomenon, Xu Kai curled his lips inwardly, and at the same time added one more thing to his previous thoughts.
[A truly portable football should not only be able to be disassembled and compressed, but also be able to be played in a game at any time without the need for inflation! ]
[Otherwise, what kind of portable football is this?]
"And speaking of not needing to pump air, it seems like I don't need to consider this kind of rubber-like material..."
"Wouldn't it be practical if we just added some cushioning material to the final surface layer?"
Thinking of this, Xu Kai suddenly had an idea. His eyes lit up and he picked up a pencil to start drawing his own sketch.
Somehow, he felt that the football he wanted to make must be epoch-making!
Thanks to his recent drawing practice, Xu Kai drew this sketch very quickly.
Moreover, there are various small details on the sketch. When all these small details are combined together, the football designed by yourself is completely completed!
Looking at the sketch, Xu Kai smiled happily.
He then found the tools on the work platform and started his busy work.
At this time, in the judges' seats, each judge looked at the contestants' projection screens and nodded from time to time.
In their opinion, these two high school students have their own skills in design. Not to mention the final product, even the drawing and the skilled workmanship are not something that ordinary high school students can achieve.
Looks very professional!
"Borg, this guy has an academic style. Every stroke and every painting has a strong system style. And you can see from the production that this guy is also confident."
"The liner was made quickly and well, and now we have started installing the air holes."
"Xu Kai's style is obviously practical. Although every stroke and every painting looks a bit messy, there is still a unified style."
“This style makes him unique.”
"I think it is precisely because of this uniqueness that he has two patents at such a young age."
Among the judges, a professionally designed British gentleman wearing thick glasses commented with admiration in his eyes:
"And in terms of production, I think this student Xu Kai is just as good. At least when it comes to finding tools, he didn't hesitate at all, which is enough to show his confidence. Now..."
However, before this British gentleman could finish his words, he became stunned.
Looking at the tools and materials Xu Kai found, the corners of his mouth couldn't help but twitch a few times.
"Now... we can see Xu Kai picking up the hand saw and the wood."
"Wait, what the hell does he mean by holding a hand saw and wood?"
"Doesn't he know he's making a football?!"
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