About this 3D model
This is a case for the NooElec Ham It Up Upconverter for SDR radios (http://www.nooelec.com/store/software-defined-radio/sdr-accessories/ham-it-up-v1-0-rf-upconverter-for-software-defined-radio.html#.UjJ60sbbN8E) OpenSCAD file included. Wrapping it in tinfoil (touching the ground on the USB,) may be a useful enhancement.