power switch box

This part is a box that use to hold the power switch that you can order
from ebay as un improvement to 3d printer like anet A8,
The link to the part i use is :

http://www.ebay.com/itm/371408719894?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

I also attached the sketchup file so every one can make modification to it .