This is the first thing I printed off our brand new Replicator 2! Unmodified, just printed the box in yellow and the top in red...had to file the USB port out a little to make it more square and that's it. Very nice, tight fit. I have not added the LED or power switch to this build as yet. Pictured here is the assembled box, the top as it came right off the build platform, and the top off with exposed circuit board and batteries, which just fit neatly into the cutouts provided.