Outer Plant Pot Ellipsoid

A simple, customizable outer plant pot, using the prolate ellipsoid function.

Just input desired wall thickness, height, upper and lower diameter.

Please pay attention to the lazy-mans Achimedean spiral bottom design ;-)
Isolated in https://www.thingiverse.com/thing:3057999

Version 4 is the go-to SCAD.
This one is optimised for rendering when you enter your printing layer height. And the global $fn can be set to your choosing 360 for a smooth finish or a lower value for a more square