Modular Raspberry Pi Cluster Rack & Frame

thingiverse

Thank you to @Krapozok for creating a modular Raspberry Pi rack design that's really taken off! I decided not to buy the frame these modules sit in, so I printed it myself using my Ender 3 Pro. The frame is still 2U tall and comes in 8 parts due to print size restrictions, although in hindsight, I could have made it in 6. There are left and right pieces (2UFrL & 2UFrR), top and bottom center pieces (2UFrTC & 2UFrBC), which are identical. These pieces bolt together using M4 bolts and nuts - I recommend using 14-16mm bolts for best results. You can find the bolts on Amazon at https://www.amazon.co.uk/gp/product/B07W49JX1L/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1. The frame includes spacing holes not just for Krapozok's v1 modules but also for anything half the size, giving you more mounting options. It's up to personal preference, but I suggest purchasing brass knurls (5mm OD, 3mm length, M3 thread) and pressing them into the frame before heat sealing them in place for module fixings. You can find the knurls on eBay at https://www.ebay.co.uk/itm/25-50-100pcs-M2-M2-5-M3-Solid-Brass-Round-Threaded-Knurl-Insert-Embedded-Nut/152092441996?ssPageName=STRK%3AMEBIDX%3AIT&var=451295624326&_trksid=p2057872.m2749.l2649. This is just one part of a larger project I'm working on for fault-tolerant home automation using Raspberry Pis. Stay tuned for more info, as I'll be releasing another Thing soon that focuses on the modules with some modifications, environmental control of this rack, and GPS NTP units.