A stackable rack

Next to my television there is a modem, router and a few raspberry pi's. For these devices I have made a stackable rack. This allows these devices to stand on top of each other. There is a lot of room for draining hot air.

If you print more, they can be stacked. Print the rack upside down and use support for the 4 corners. Because the hot air can escape well, I went for PLA.