pi4 Igloo snap tower

thingiverse

I was looking for something straightforward that wouldn't require a trip to the hardware store. The design should be completely printable without any extra hardware or parts and have no extruded text or other visual distractions. Additionally, it should print fairly quickly without any individual pieces taking too long. Compatible with the Ice Tower cooler, but you'll need a custom mount for it. I mounted mine directly to the pi4 with screws, skipping the standoffs and plastic tray that came with it. This approach is better in my opinion since you can tighten the cooler against the cpu very tightly and use real thermal paste. Be aware that the screws closest to the fan in front will need to be short to clear the fan or use a 10-15mm deep fan instead of the standard 25mm. Printing with PLA+ or PLA2 is better, as the harder plastic works more effectively. Hatchbox is sufficient, but I prefer something harder. Filacube PLA2 works well and is made in the USA. The ideal print settings are ~210c/55c with a layer height of 0.2mm. I recommend printing the bottom piece first, followed by the front piece. Make sure the two pieces fit together properly, or you might want to adjust your print settings slightly. They will be tight at first, but putting them together and pulling them apart a few times will help wear them in. They will loosen up a bit over time. Assemble the case and pull it apart a few times before inserting the Pi to ensure everything is well-worn in and can be taken apart without damaging the Pi. If needed, I can provide pieces with a larger gap between fittings. The fan in front is a 60mm x 60mm x 25mm fan. A leftover Noctua 5v 60mm fan should work well as an alternative. I sand down the print lightly with 600 grit, then again with 400 grit using a wet sand for a smooth matte finish.