R Pi Zero + Adafruit OLED Bonnet Case

thingiverse

This is a straightforward project for a Raspberry Pi Zero paired with an Adafruit OLED bonnet. The interior design of the Adafruit bonnet includes offsets and features to accommodate items like the OLED ribbon cable and solder points on the underside of the Pi, provided you've added headers to your device. All ports are accessible through openings, as well as the screen and button areas on the lid. In comparison, the small buttons on the bonnet are recessed more deeply than the joystick, making thumb access less ideal. Regarding assembly, I employed 20mm M3 screws that pass through the lid and corner holes in both components before securing them to M3 bolts underneath the box. These bolts sit within countersinks. A slight ridge feature surrounds the bolt holes on the lid, enabling socket-style head screws to slightly countersink into place. Keep in mind that the fit may depend on your printer's tolerance and slicer settings; you might need to adjust hole sizing accordingly. Note: For M3 screws to work effectively, the diameter of the corner holes on a Raspberry Pi Zero and an Adafruit bonnet often isn't quite sufficient. Occasionally, I must turn a drill bit manually within the board holes to shave out just enough for it to fit snugly. This approach is not endorsed by Rasperry Pi or Adafruit, but it's acceptable in this instance since I wanted to use M3 bolts in this manner. Proceed with caution and be aware that results may vary.