Raspberry Pi 4 Cluster Case with POE Hat - No extra bolts

thingiverse

I was having a hard time finding a Pi 4 cluster case specifically designed for a UTRONICS Power Over Ethernet (POE) hat. I really liked some of the cluster cases (e.g. https://www.thingiverse.com/thing:3858968), but none of them I could be sure worked with a POE hat. So I designed a simple one. It works with the UTRONICS POE hat (https://www.ebay.com/itm/UCTRONICS-PoE-HAT-5V-3A-for-Raspberry-Pi-4B/124109339589) and does not require any additional hardware besides what comes with the POE HAT. Now it is a far critique that POE is an expensive route, because it would be cheaper to buy a USB C power hub than to buy a POE hat for each PI, but I like the simplicity of only having 1 cable per node and then I can also turn them on and off with my managed switched. So that is why I went the POE route. Notes: 1) If your printed "mounts" for the PI are not exactly retangular (i.e. you have some overshoot) then I suggest you sand them slightly to make assembly go easier. Also, don't tighten the mounts down very hard. Just loose is fine. 2) The fan is a very available Arctic F12: https://www.amazon.com/gp/product/B002KTVFTE 3) If you do need to buy hardware, because your POE didn't come with it for some reason, a kit like this is nice: https://www.ebay.com/itm/HVAZI-320pcs-M2-5-Nylon-Hex-Spacer-Standoffs-Screws-Nuts-Assortment-Kit-Male/273452816567 You need x4 8mm standoffs, x4 2.5mm nuts, and x4 2.5mm screws per node. 4) If you are wondering why I have 20 nodes in my cluster from the Jupyter screenshot, that also includes my main machine's 4. I use my PI cluster to enhance my main rig. 5) You can learn more about what I am doing with it here: https://troybouman.com/portfolio/diy-cluster-super-computer/