Just experimenting with Microsoft 3D Builder using the following good work:
http://www.thingiverse.com/thing:702374
http://www.thingiverse.com/thing:871993
http://www.thingiverse.com/thing:871919
http://www.thingiverse.com/thing:872004
http://www.thingiverse.com/thing:872001

So here is the STL result.
Printed hollow without support on Boot Industries Delta printer with these settings:
extruder size= 0.5mm
Repetier using CuraEngine slicer
wall thickness=1mm
quality=0.25mm
No filling

Updated:
Model was edited to ensure that the logos have the same scale on the pyramid.
Cheers