This is a modified and enhanced version of https://www.thingiverse.com/thing:5634938. It is smaller, has thinner walls, has 4 sections instead of 3, and uses a 3-sided squircle curve instead of a circle to form the control curves for the Loft surfaces that form it's 4 sections.

Here is a 24 second video that shows how it looks: https://youtube.com/shorts/0R8CQ81kjiw?feature=share

A squircle is a closed curve that began as being part way between a circle and a square. But the method for creating a squircle is easily adapted to use a polygon of any number of sides other than 4.For this design I thought a triangle looked best.

This design printed in 12 hours 22 minutes using a print speed of 100 mm/sec and a layer height of 0.200 mm.