I printed a rack for my RPi ADS-B cluster to help organize my comm closet. The most expensive part of the project were the brass Pillars (20 @ $0.30 each). The next step is to organize the cables and power connections. I’m still looking for a USB power hub with 5 ports with 5.1v 3amps per port so I can get rid of the wall warts.
Images of each side can be viewed here.