A Klein bottle, Using a Foundation for Simpler 3d printing
At full scale it is approx 100mm high and 70mm in diameter at its widest. The wall thickness is 1mm.
I just noticed I had the wrong file (Without base, kind of missing the point...).
Both are available now.
Added higher res files as the polygons are visible on the print
As in "Open source" I try to share my source files, so there is the Solidworks 2012 file also.