20A Power Supply Holder

This is another power supply holder for the downside of the prusa I3. It has a fan holder, and also a hole for a wall plug and switch.
It still has a few problems. The walls around the plug should be a bit ticker.
Also, there is a cap for the plug box that is not designed yet.

Updated. Walls around the plug are now ticker.
Still pending the plug box cap.

Added the source .blend file.