At the beginning of the 25th, I started to study nas for some reasons. When I saw that the finished products were too expensive, I didn't like the diy ones. I designed one myself.
After editing a video and sending it to station B, many people wanted it, so the long period of selling chassis began. There should be 1000 or 2000 sets sold by now. I haven't counted them in detail. If you want to know, you can search and play Xiaoqu at Station B.
The video and pictures may not be the same version, but they are one thing after all. I am too lazy to do it again!