Print in place Hex key driver Case

I made a case that can be opened and closed through 3D printing once. No magnets or pins are required. If you change the filament after the first layer, it comes out like the picture. However, you can also print in one color. When I used a build plate with a specific pattern purchased from Ali Express, it came out in a carbon form.

https://youtube.com/shorts/g-XUyZLFv7I