Power brick cooling stand

I have noticed that some 3d printer power bricks (especially those of the cheesy variety) can get pretty hot. I have one power supply in particular that heats up to around 55C. This stand won't magically make a cheese-grade power supply into a super-reliable powerhouse. However, it will keep it a bit cooler, which can't be a bad thing.

The stand is 152mm x 84mm and 35mm tall, but I tried to make the design generic enough that it can easily be scaled up or down without any problems.