This is a remix of: http://www.thingiverse.com/thing:24203
I edited the original a bit, some modeling (the top wasn't all there), scaling and rotating. I also added a version with support beams.
-- Edit 06-09-2014: I added a requested lower poly ''light'' version of the supported model (SphinxSupportLowPoly.stl). --
3DWP delivers service in 3D printing/scanning/designing. We can be of great value because of our extensive experience in Additive Manufacturing.
3D Print Service 3DWP website: https://www.3dwp.nl
Website about free 3D printer software: http://www.gratis3dprintersoftware.nl
3DWP on Shapeways: https://www.shapeways.com/shops/3dwp