This is a simple case I made to hold the Adafruit 16x32 LED Matrix Panel. There are four holes on the back where a Rasbperry Pi case can be mounted. The Raspberry Pi case is used to prop the LED Panel up. The Raspberry Pi case is secured to the LED case by 4 M2.5 screws. You could probably stand it up without the Raspberry Pi case, but it's not as secure.
Adafruit 16X32 Matrix: https://www.adafruit.com/product/420
2.5M standoff screws: http://a.co/ek7b4vz
The Raspberry Pi case I used is based off the Carcasa para Raspberry Pi - Raspberry Pi case, https://www.thingiverse.com/thing:1984351
LED_Matrix_Case.stl | 276.5KB | |
LED_Matrix_Pi_Bottom.stl | 302.6KB | |
LED_matrix_Pi_Top.stl | 30.7MB |