This is a very useful all in one design to stack as up to 8 Raspberry Pi 5's to form a cluster unit. Note: This custom case was specifically designed to house the exact components listed under the electronic parts section which are available from Amazon, eBay and The Pi Hut. If you are new to electronics it is your responsibility to ensure you are building this safely and if in doubt seek professional help as I cannot be held responsible especially as part of the wiring will involve 240 volts from the power switch to the PSU.

There are several STL files in this project. The Pi Cluster Case Combined.STL has all the parts combined onto a thick sturdy base and the parts contained within it are fused with the base unit to avoid the need for glue. Holes have been also cut out to allow wiring from the power supply and also power switch so you will need to include some supports prior to printing. The majority of the print does not require further supports.

In addition to the main STL file I have included all sub-parts if you wanted to print these individually. Note: This cluster unit ideally requires a printing bed large enough such as a FlashForge Guider 2 (280x250x300mm). This is to allow enough space for all the parts to fit onto the base and to allow space for wiring.

Once you have printed the main cluster unit you can then simply print additional individual Pi holders under filename 'additional pi mount holder.stl'. e.g. If you intend to build a 8 stack print another 7 of these as one is already fused with the base plate. There is also an additional STL file called 'inter fan bracket.stl' so this can be placed as a holder between the two fans to keep them securely in place as shown in the supplied photos.

I have included a list of additional electronic parts and bits of which will help you build this awesome Pi cluster case. For my setup since it was Amazon Prime Day I treated myself to a NVME Pi HAT and also a 1TB NVME drive and these items were tested and work perfectly with the Pi.

Comments:

• There should be sufficient space for wiring the Ethernet cables from the back of the Pi's to the switch but ensure your cables are short length around 30cm.
• Pi's should be mounted with the micro-SD card slot facing you.
• The fans will be exposed so bear this in mind. The fans should be orientated with the fan logo on the inside - not outside.
• In my setup I have placed the first Pi at the top with the NvME drive.
• The fans on the left are optional but they are very effective with supplying additional air-flow and according to terminal the CPU was idling at 29'C!. These are also 5v USB so they merely plug into one of the Pi's USB slots.
• If you need to secure pieces in place such as the PSU I purchased a small pack of Gorilla Tacks (https://uk.gorillaglue.com/gorilla-tack/)

Enjoy!!