This enclosure for a Raspberry Pi 3B + 7" touchscreen. It's part of the eXaDrums project: https://hackaday.io/project/9350-exadrums. You can use the enclosure to turn your Raspberry Pi 3 + touchscreen into a tablet, or to make a drum module.
Printer brand: TEVO
Use brim if your prints aren't flat. You need to print 8 screws. You can print the box with or without mounting holes. These holes are meant to be used with a Roland TD4-KP drum kit. The back cover can be printed with or without the logo and with or without the DB25 aperture, your choice.