This is an enclosure for the Smoothieboard 4XC electronics. It should work for 5XC as well. All other enclosures on Thingiverse where either for too large or too small (different version of smoothieboard ).
I printed it with 20% infill and support for the openings. It came out quite good.
The box has been designed with OpenSCAD, the scad file is available for download as well.
GCodeSimulator and GCodePrintr