HyperPixel 4.0 Raspberry PI 4B Case

thingiverse

I decided to relocate my OctoPrint screen from the printer's front panel (https://www.thingiverse.com/thing:3863115) to an external enclosure. This allows for ample space for active cooling of my Raspberry Pi 4, ensuring its temperature remains around 60'C even when printing and wirelessly streaming Full HD camera video. I wanted the USB connectors on the left, which forced the screen to be inverted. You'll find instructions for rotating it at the bottom of the description. Here are the necessary parts: * GPIO stacking header (https://www.amazon.com/Adafruit-Accessories-GPIO-Stacking-Header/dp/B00TW0W9HQ) I didn't have one, so I used random 2.54 goldpin ports to extend the GPIO. * Stepdown converter: https://www.amazon.co.uk/POLOLU-2865-Step-Down-Voltage-Regulator-D24V60F5/dp/B01IMERSI2 * Radiator: https://www.amazon.co.uk/MakerHawk-Raspberry-Aluminium-Radiation-Protection/dp/B07M7M53LT/ref=sr_1_12?keywords=raspberry+pi+4+radiator&qid=1583187633&s=lighting&sr=8-12 * Some kind of power port and a plug, the hole is 8mm wide. The cable connecting the stepdown converter to Raspberry Pi needs to be quite thick. I got under-voltage warnings using BJC connectors with thin wires. I connected the 5V to Pin 2 and GND to pin 6, and added a small capacitor for extra stability. No more warnings since. This case doesn't require any screws. The snap-in fittings were reinforced to withstand some abuse. The best way to assemble everything is: 1. Install the screen back plate into the frame. 2. Install the screen into the screen back plate. 3. Install all 3 parts to the front part of the box, making sure the screen GPIO connector is on the side without ventilation! 4. Slowly install the Raspberry Pi on top of the screen. Screen installation: 1. git clone https://github.com/pimoroni/hyperpixel4 -b pi4 2. cd hyperpixel4 3. sudo ./install.sh To rotate the screen, comment out the dtoverlay line and add the second one: sudo nano /boot/config.txt #dtoverlay=vc4-fkms... display_lcd_rotate=3 To rotate the touch pad, create a new file: mkdir /etc/X11/xorg.conf.d sudo nano /etc/X11/xorg.conf.d/99-calibration.conf And insert: Section "InputClass" Identifier "calibration" MatchProduct "Goodix Capacitive TouchScreen" Option "TransformationMatrix" "-1 0 1 0 -1 1 0 0 1" EndSection