About this 3D model

[Edit it](https://tinkercad.com/things/i3EljtZJMsi) in tinkercad online to change the labels and the holes (you might want to ungroup the whole thing several times): --- Designed for switches like shown in the picture. You could use anything that has 20mm diameter of snap-in part. Parametric --- [Picture Credit](http://www.ebay.com/sch/i.html?_sacat=See-All-Categories&_from=R40&_nkw=4+Round+Red+LED+Rocker+Indicator+Switch+3+Pin+On-Off+Snap-in+12V+DC)