Just a mount to make attaching an Arduino to something easier to do.I needed something to test out using SketchUp as a modeling app. So I grabbed an Arduino mount I found here to get hole spacing and had fun with it. 11/6/2013 - Printed a couple. They work fine. I wanted it to be light and it came out light. Maybe a little too light? I drilled out the Arduino mount holes and tapped them for 4-40 screws. Have to be careful, there's not a lot of extra material for error here.The holes are all a little small. This is mostly so you can drill them to the size you want. The Arduino holes are big enough to take a 4-40 drill & tap, but you have to be careful, its a real tight fit. Oh and the mounting screws. To fit an Arduino your going to need 4-40 X 1/4" Socket cap screws. The button heads in the picture don't fit in the last hole in the back. As far as I can tell, the socket cap screw (Allen head but not button head) is the only thing that fits.