This is a simple frame for a 16x16 LED Matrix with a with of 160x160mm., I printed the frame and the grid in PETG. For the 'glass' I used a
Arduino 16x16 WS2812B RGB Matrix Animation Picture Frame
ws2812b matrix 16x16 3D Models to Print - yeggi
8x64 led matrix case max7219 3D Models to Print - yeggi - page 48
HJHX 2pcs Ws2812b LED Matrix 16x16,256 Pixels
Custom 16x16 WS2812 Mini Matrix Project : 15 Steps (with Pictures
Custom 16x16 WS2812 Mini Matrix Project
LED Matrix WS2812B ESP32 16x16 grid screen picture frame - 3D
WS2812 16x16 LED Matrix Demo, LED screen, LED wall
Arduino 16x16 WS2812B RGB Matrix Animation Picture Frame
WS2812B 16x16 Programmable Neopixel Flexible Matrix LED Panel
Arduino 16x16 WS2812B RGB Matrix Animation Picture Frame
8x64 led matrix case max7219 3D Models to Print - yeggi - page 48
Free STL file 32x32 Pixel Display 🔧・Template to download and 3D