D-pad enclosure for 6mm momentary switches Free 3D print model

Part of a http://hackaday.com to make a game controller for people with physical disabilities http://wp.me/pk3lN-pNO. You can also contribute at http://www.thecontrollerproject.com. This is a directional pad that can be assembled with 4 simple 6mm momentary switches. It takes roughly 60 grams to compress these. Another version using low pressure switches would be beneficial.