2U Rack Mountable Raspberry Pi Holder for Raspberry Pi Super Computer

thingiverse

Here is the 2U rack mountable for 21 Raspberry Pi 3B+. This is the rack that held the 1024 Raspberry Pi at CodeOne San Francisco 2019 in the Raspberry Pi Super Computer. You will need to gather the following: 1. (21) Tapered Heat-Set Inserts for Plastic, Brass, M2.5 x 0.45 mm Thread Size, 3.4 mm Installed Length, Packs of 100. Order 94180A321 from McMaster-Carr. 2. (21) Button Head Hex Drive Screw, Passivated 18-8 Stainless Steel, M2.5 x 0.45 mm Thread, 5mm Long, Packs of 25. Order 92095A457 from McMaster-Carr. 3. (4) 10-32 3/8in long screws with flat head. Order 91253A001 from McMaster-Carr. 4. (1) 18" 80/20 Series aluminum extrusion, 15 .5in x 1in - available on Amazon at https://www.amazon.com/gp/product/B00IWZFPCS/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1. 5. (21) Raspberry Pi 6. (21) 90 degree micro USB cables 7. (1) 24 port or larger switch 8. (1) 24 port or larger 5v USB power supply - available on Amazon at https://www.amazon.com/gp/product/B07MB12XZ4/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1. 9. And various tools Note: Before ordering the items above, please double-check to verify everything looks good. It has been a while since I ordered these, and while I have gone back through my receipts, there could be some mistakes. If you find any errors or have questions, please let me know. Steps: 1. Print (21) of the Pi2UHolder.stl files 2. Print (1) of Pi2ULeftBracket.stl 3. Print (1) of Pi2URigthBracket.stl 4. Insert a threaded insert into each of the holes in the Pi2UHolder.stl 5. Place the Raspberry Pi on top of the Pi2UHolder.stl, push on the 2 bottom holes and insert the bolt through the top hole and tighten into the threaded insert. 6. The 18in 80/20 is a bit too long. You will need to cut off 16.35mm. The most accurate way to do this is with a mill. 7. Tap the 2 holes on either side of the 80/20 to 10-32. 8. Push the 80/20 into Pi2ULeftBracket.stl, and bolt in the two 10-32 bolts 9. Slide on (21) Pi2UHolder.stl with Raspberry Pi attached from step 5 above 10. Push the Pi2URigthBracket.stl onto the remaining bit of 80/20 11. Congratulations!