Geeetech Prusa i3 y-axis max endstop

Using this thing you can add a y-axis max endstop to your Geeetech Prusa i3 printer.
It fits on top of the acrylic plates and is held by the big screw on the front. You can add a switch like this on top:
http://www.ebay.de/itm/182185770050


This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/g2GdKrbhBNR