A simple hinged case for an Arduino Uno, to protect it from static discharge, knocks, wet or conductive surfaces, etc.I have left a single-layer bridge over the captive nut holes because Slic3r currently won't let me tell it not to extrude a hole perimeter into empty space before trying to bridge up to it. This also prevents dust et cetera from entering the case via an un-used hole if left in place.I took dimensions from http://arduino.cc/blog/2011/01/05/nice-drawings-of-the-arduino-uno-and-mega-2560/ and due to a single-digit slip-up in converting mils to mm, had the USB-B port hole offset by about 2mm in my first prototype shown in the photograph, but that was easy to fix with a small blade on my multitool. The Designs I uploaded have been corrected and should fit an Uno in and out easily, even while the lid is on.Let me know if you want an alternate case version drawn up with room for a shield - I'll need dimensions for the shield though.