Print in place 1x2x2

This is a print in place 1x2x2. It is such a useless puzzle that this is the only interesting thing that can be done with it, like a 1x2x3. I have made two designs with different pros and cons; a barrel core design and a spherical core design. The puzzle turns quite well after some break in and lubrication. Corner cutting is minimal due to the lack of springs whatsoever.

Sphere
+Invisible mechanism
+Better corner cutting
-Loose
-Harder to print (tight mechanism)

Barrel
+Stable
+Stronger (thicker parts)
-Visible mechanism
-Possible mid turn removal of pieces
-Untested*

*I have not printed this but it should work