The Plug-H

This is the original design, unprinted version of the Plug-V (https://www.thingiverse.com/thing:363435).
It uses the same parametric surfaces as the Plug-V, but the second one is rotated by pi/2. The two variants include a well chosen piece of torus, plus another well chosen piece of ring.
As a recent owner of a 3D-printer, and therefore beginner in the art of FDM 3D-printing, my feeling is that this model is not printable. I have very little experience with support usage and would be happy to learn that someone successfully printed it, and how.