case for the DC DC Step Down LED (Buck, LM2596, LM2596S)

This is a case that was build for the [shack-standard power plugs project](https://hackaday.io/project/19389-shack-standard-power-plugs).
You can [get the module here](http://www.banggood.com/LM2596-DC-DC-Voltage-Regulator-Adjustable-Power-Supply-Module-With-Display-p-1005123.html?p=8E052132107122015126) or any other famous asia electric marketplace.

The quickest way to prototype (I think) is to just print out your 2D files on paper
and roughly cut with scissors or directly cut the paper w