Arduino D pad case

This Arduino D-pad case was originally designed to be attached to the 3D printed linear actuator I shared on here. I've made modifications to the file so that anyone who wanted a general use case for their arduino + keypad/screen could get some use out of it.

Designed specifically for the following parts:
*Arduino Uno: http://amzn.to/1T7nhse
*Protoboard Shield: http://amzn.to/1VSnqGa
(also found here: http://tinyurl.com/p6mcd9r)
*Keypad/Screen Shield: http://amzn.to/1VMqIex
(also on Sparkfun here: https://www.sparkfun.com/products/13293)
*Optional 40mm cooling fan: http://amzn.to/1MR7rW0

FYI this is the project it was originally designed for: http://www.instructables.com/id/TestrBot-The-300-Universal-Test-Machine/