Raspbbery Pi 3 - Enclosure remix with top mount for fan

thingiverse

**REMIX ALERT:** This remix only contains the modified top part; for the rest of the part, see the [original enclosure](https://www.thingiverse.com/thing:2407893) ! Not compatible with Raspberry Pi 4 - it has a different port layout! I printed the excellent [Raspberry Pi enclosure](https://www.thingiverse.com/thing:2407893) by [msonst](https://www.thingiverse.com/msonst/about), but struggled with high CPU temperatures. My Pi was sitting at 60°C (140°F) at idle, even with a heatsink - too much for running it in a 24/7 environment. So I remixed the original design by extending the top higher and added space for a 40x40x10mm fan and side exhaust ventilation holes. **The new design with fan and existing heatsink dropped temperatures from 60°C to 32°C - almost in half!** This design supports heatsinks. Before the fan arrived, I tested it out with just passive cooling using the extended top and noticed a temp drop to 45°C. So, I would even recommend using my design to increase the lifespan of the Raspberry Pi, especially if in a NAS setup it's run 24/7. Under [cpu stress test](https://core-electronics.com.au/tutorials/stress-testing-your-raspberry-pi.html) with the fan and heatsink, the Pi reached its max temp of 48.3°C. I ended up buying a [Noctua NF-A4x10 5V fan (non-pwn version)](https://www.ebay.com/itm/332636386937?_sp=p2488211.m41214.l9765&_trkparms=itemid%3A332636386937) (expensive option, but delivers amazing airflow at a low noise level). Opersourced Fusion360 project: https://a360.co/2I1oG7j