Hi c3g,
One way to create a MoIebius ;-) strip is by using the combination of Twist and Flow commands in (Trasform, Deform).
Would this answer your question ?

Thank you for your patient answers. They have been very helpful to me.

Hi,

If it could help you, years ago I work on a version of moebius ring.
My memory have lost the way but perhaps you can find how I made with the files.

Have fun,

P.

Thanks to Michael Gibson, Mip (VINC), Phiro and everyone on this forum for your kind replies. I made a Möbius strip with nodes and share it with you all.

So with your nodes system (not yet tested) you can input any half volume or it's just for this specific one ?

This is the Chinese tutorial video for the making process:
https://youtu.be/T-0QxEDs6HQ
Let’s learn together!

So a specific one! ;) Bravo!