PC fan connector system

Summer is coming, and a nice breeze is always welcome. The part count in this project is for a “wall” of fans of 3 fans by 2 fans, so six fans in total.Apart from the printed parts from this project, one can also include fan grills and air amplifiers.I've used 6 Arctic Cooling F12 fans, but any (quiet / silent / high air flow) 120 mm PC fan should work.You'll also need a maximum of 48 screws, M5x12 as well as a tap for M5 to thread the mounting holes of the fans.Also needed is some form of fan control, I did cobble together a few Y-adapter cables and then connected those to a LM317 based DIY control box and 12VDC, 2.5 A power supply. A separate parts list and schematic can be provided, if anyone wants - just let me know. The bottom part is designed for a 30 mm x 15 mm x 10 mm adapter block to connect to a standard tripod mount. I've included a variant with a fully printed bottom and a 5/8" ACME threaded hole (for 5/8 to ¾ UNC adapter screws) but I did not test that. Ple