Mini Rack for Single Board Computers

thingiverse

I figured if you're going to build a Raspberry Pi supercomputer, why not build it in style. This is very much a work in progress right now. The basic rails, couplers, and side panels are complete and working well. All holes are threaded for standard #6-32 computer screws, but many practical parts are still missing - like the actual board cases. This project was intended as a Raspberry Pi cluster case, but when defining the Mini Rack Unit specification allowances were made for most single-board computers and microcontroller boards currently available. A few single-board computers are just too big to be practical. Each rack is 7MU tall. You can make larger racks using the included coupler to vertically connect two racks. At least a 180mm base plate is required for the basic rack - side rails can be printed diagonally. Some parts, like the side panel, will require a larger build platform. 1MU is defined as 99mm wide, 24mm tall, and no more than 150mm deep. Three mounting holes are on each side of the rack. The mounting holes are 105mm apart horizontally and placed vertically at 4mm, 12mm, and 20mm. The rails themselves allow for .5mm above, below, and on either side of the case - actual clearance is 100mm x 25mm. To do: Design single-board computer cases to populate the rack. Design a horizontal coupler to connect racks side by side. Build plates for interconnect (keystone for Ethernet or power barrel connectors, for example).