Dual HDD Raspberry Pi NAS with fan control
Description
This project was first inspired by araimbox's PiNAS. I wanted to get rid of the soldering part to connect the hard disks. Also, I was a bit afraid of the temperature management in such a small enclosure, with all the CPU electronics so close to each other. So here it is: Works with a **Raspberry Pi 4** and **two USB SATA Hard disk drives** connected with the shortest SATA USB cables I could find. **Small** footprint, a 15.2cm x 15.2cm square. Mainly **unibody**, only two main parts including anchors to ease cable management with small zip ties. No supports needed for any of it. **No glue**, only M3 screws. Plenty of air vents to **prevent choking**, plus a Noctua fan that only runs when necessary thanks to Tyler's tutorial on Howchoo.com. A bit of soldering is necessary if you want to achieve this, but it's worth the effort. I use OpenMediaVault on the software side; SMB sharing, DLNA streaming, lots of plugins and you can even run a Plex server. it's a very nice platform. Parts list: ======= * PLA, any brand I guess, but I used Prusament * one Raspberry Pi 4 * two SATA Hard Disk Drives (you may use only one though) * two very short SATA USB cables with thin connectors, I used a Sabrent model (see below) * one 4mm NF-A4x10 5V Noctua fan * one NPN transistor and a resistor if you want to trigger the fan's activity depending on the CPU's temperature (follow the tutorial, link is below) * one Ethernet cable * a few small 2.5mm zip ties * four M3*4 screws * two M3*6 screws * five M3*8 screws * eight M3*5 screws * four M3*12 screws * four 4mm diameter anti-slip rubber pads The whole assembly process is illustrated below. Some references: ============= * [araymbox's Pi NAS](https://www.thingiverse.com/thing:3878669) * [Tyler's fan control tutorial on Howchoo.com](https://howchoo.com/g/ote2mjkzzta/control-raspberry-pi-fan-temperature-python) * [OpenMediaVault](https://www.openmediavault.org) * [Sabrent USB 3.0 to SATA cable](https://www.amazon.fr/gp/product/B011M8YACM) * [4mm NF-A4x10 5V Noctua fan](https://www.amazon.fr/gp/product/B00NEMGCIA) * [M3 screws](https://www.amazon.fr/gp/product/B083R62LYY)
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