BeagleBone Black Cluster Rack

thingiverse

A custom-designed modular rack system holds three BeagleBone Blacks per tray, allowing easy access to each board's headers and cables. Each tray slides out for convenient maintenance and wire management. To keep things organized, wire management brackets are included. For more information, visit https://linuxpropaganda.wordpress.com/2018/09/21/beaglebone-black-cluster-rack-system/. To connect the power supply inside the stand, use https://www.thingiverse.com/thing:3105119. For neat networking cables, use https://www.thingiverse.com/thing:1320948. A PCB distributes 5 volts across each tray. Each PCB requires five screw terminal blocks with a 3.5mm pin spacing. Order the PCB through Fritzing software; the file is available at https://aisler.net/p/NKVQDEAW. This is a 12-volt system powered by a solar array and four DC-DC step-down boards housed in the stand, along with a 16-relay board that allows the master node to power up or down slave nodes as needed. Parts and materials include: Super Glue BeagleBone Black Network Cables DC 12V to 5V 30W Step Down 4-USB Port Power Supply Module Board 5V 16 Channel Relay Module Optocoupler Protection board 2.54MM Dupont Male to Male Wire Jumper Cables M1.8 304 Round Pan Head Phillips Sheet Metal Self-tapping Screws Barrel Jack 2.1mm Power Pigtail Male M3 x 5mm Nylon Phillips/Slot Pan-Header Screw M3x0.5mm Nylon Hexagon Fastener Hex M3x10mm-6mm Nylon Hexagonal Pillar Female Male Stand off Spacer M3x30mm-6mm Nylon Hexagonal Pillar Female Male Stand off Spacer