4 button box enclosure for 6mm momentary switches

Part of a hackaday.com to make a game controller for people with physical disabilities
http://wp.me/pk3lN-pNO

You can also contribute at www.thecontrollerproject.com

This enclosure mimics the 4 buttons on an Xbox 360 controller. The 6mm momentary switches take roughly 60grams of force to push.

A version using low pressure switches would be beneficial.