Rotational Sculpture

You can set your own VACE [url=https://www.geogebra.org/m/apqydet5]here[/url]. For more information, we can find a related paper [url=http://archive.bridgesmathart.org/2019/bridges2019-493.pdf]here[/url].
You can move the cross section through the red point.
– Diego Lieban

Information: Rotational Sculpture