Raspberry Pi 4 case with 3.5" touchscreen

Case for the Raspberry Pi 4 with a 3.5" TFT display module. Enlarged holes around micro HDMI ports to facilitate cables with larger ends, adjusted positioning of port holes, and added a view slot so the PWR and ACT LEDs can be easily seen. Added airflow vents to help with cooling. The screen is raised slightly to accommodate the cooler I used (https://www.pishop.ca/product/dedicated-all-in-one-aluminum-cooler-for-raspberry-pi-4b-pwm-with-fan-adapter/).

This case holds the display slightly further from the Pi than where it would normally sit. This means that the screen's female headers don't push all the way down onto the Pi's GPIO pins, and about 1-2mm of the pins are left exposed. This means it may be possible to fit a shim PCB underneath to add connections for fan power, though I haven't tried it.

I used a display with fan power connections on its underside, and left the fan PWM control disconnected. It was a tight fit - the wires are short, and it was difficult to route them s