The Chinese YouTuber — Xing — says it took him 4 months to complete the project. He said he decided to embark on the project as many people requested him to do so after sharing a video about a cat house he made 2 years ago.
For the subway project, he says he had two main hurdles that puzzled him for a time — how to make the train doors and the platform doors open simultaneously, and how to make a working mini escalator. After spending some time on it, he decided to just start the project, and his decision did pay off in the end. The final piece feels just like the real thing, complete with a welcome message for arriving passengers.
The new subway system is part of his cat house — a project he started a long while ago. He keeps making new additions to the miniature utilities his cats now have. Prior to this, he has built a lot of things for his pets, including a Cybertruck, spa, quad bike (“Cyberquad”), supermarket, garage, and theater. For one of his projects, he built 100 insulated cat shelters in 48 hours for stray cats in his area.
Xing isn't just another pet enthusiast, but one with some serious engineering skills. Through his projects, he has grown a loyal fan base, who are always anticipating the next video. If you could, would you do the same for your pets?
Source(s)
Xing's World (linked above)