Summary

Although this looks similar to https://www.thingiverse.com/thing:5319003 it uses a different and less complex method for generating the curves that form the overall shape. Consequently the problem of a very large STL file and it's impact on generating GCode does not happen with this design. This one printed in a little more than 20 3/4 hours using a priont speed of 100 mm/sec and a layer height of 0.200 mm.

There will be a 2nd version of this that is based on an elliptical shape rather than a circular one.