It's an LCD cover.
The pieces snap together without any screws or glue, but you will need something sticky to adhere the hinge to the face of the LCD plate.
The tolerances are quite tame so it swings freely.
Knob.f3z | 173.3KB | |
Knob.stl | 51.2KB | |
LCD_Cover.f3d | 131.2KB | |
LCD_Cover.stl | 28.2KB | |
LCD_Hinge.f3d | 65.5KB | |
LCD_Hinge.stl | 40.8KB | |
LCD_Pins.f3d | 56.5KB | |
LCD_Pins.stl | 95.2KB |