Bought a 3d printer last week as I wanted to learn how to 3D design a case for my Raspberry Pi 4b. Couldn't find anything online hence the impulse buy lol.

I will admit its not perfect, however I'm happy with the outcome.

Required for assembly:

Raspberry Pi4 Model B setup with the software of your choosing.

I am using the original Raspberry Pi 4 Power plug.

Micro HDMI to HDMI cable.

Waveshare WM8960 Audio Hi-Fi Sound Card HAT (only required if you want internal speakers rather than using the Raspberry Pi jack. (If you know how to get it working with RecalBox please let me know.)

Innolux EJ080NA-05B 800x600 display.

PCB800168 HDMI to TTL Adapter Board.

I used Dupont cables to power through GPIO pins 2(+5v) & 6(ground).

The PCB800168 has a connector with 4 pins. Basically connecting 1 of the 5v pins to GPIO pin 2 and connect one of the GND to GPIO pin 6(ground)

Printer / Settings I used

Ender 3 v3 KE

Creality Ultra PLA

0.2mm Layer height

Gyroid infill at 15%

Brim recommended as mine lifted at corners.

For the main shell I used tree supports (2 of them print on the inside of the rear plate to support printing the speaker holes, I did have 1 tree fall off under the bed (not 100% sure if this was during print or when I removed from bed) but it luckily didn't jam anything up. I should have used a brim as it did shrink on bed corners when printing (took 6 hours for main shell)

Between the speakers and the shell there is a 2mm layer of foamy fabric

There is a little bit movement when the front is pushed over the front of the shell. I just glued a couple of small pieces of PLA offcuts to stop it moving away from the front.

Raspberry Pi 4B Old TV style case for Innolux EJ080NA-05B

0.2mm layer, 2 walls, 15% infill