Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4566324.
Yet another Raspberry Pi 4B case. I spent a lot of time cleaning up and printing and reprinting a few cases here. They had a lot of problems. I have a lot of scrap cases. It turns out it was faster to design this one. I made it easy to print and quick with nothing special.
This one is designed to accept a 40mm X 40 mm X 10mm 5v fan. The temp of my Pi went from 60C with idle no fan to 35C under load with the case and fan.
For printing, the fan holder and top do not require anything special. I used a slow first layer to make sure the grid sticks well for the top case. It's nice to have it clean. The fan holder is straight forward.
For the main case, you might need supports for the USB/Ethernet port holes. Depending on how well you can bridge. The hex grid shouldn't need any. For printing I choose supports, but then blocked supports for the grid sections. In Cura, I got a very clean print and the supports came off very clean.
For assembly you'll need 4 12mm M2.5 standoffs. The case is designed for the bottom to be sitting on another set of standoffs, as I have it on a mount plate attached to my control box. You can also just use screws on the bottom.
You'll need at minimum: 8 M2.5x6mm screws 4 12mm M2.5 standoffs
My attachment for each hole is: M2.5 screw Mount plate M2.5 6mm Standoff Male/Female - Male side up. Case Pi M2.5 12mm standoff. Female/Female Fan Holder M2.5 screw
The 12mm standoffs are a bit tight to get in, so I used a 20mm standoff to guide it in, then removed it leaving the 12mm in place.