Sweep and twist a profile around a circle

[sofia.winberg]

Hi!

I would like to twist a profile by 180 degrees and then having it connecting to itself by following a path, see attached file. It is easily done by the sweep command following a spiral-looking path. However I wish the gap inside to be a perfect circle and also the connection of the profile to look seamless and not forced. I feel limited in ways to go about it since the path is a spiral (rather than a circle) for example if I could divide it properly I could move the path according to the thickness of the profile (seem from top view) in a given point or perhaps even easier using the loft command. I guess the best would be if the inner diameter was guiding the sweep. Would be amazing with some input on this!

Many thanks,

Sofia

[TrippyLighting · Accepted solution]

It looks to me like a variation of a moebius strip. Model is attached. There are a number of Youtube Tutorials available on how to do this in Fusion 360.

[sofia.winberg]

Thank you @TrippyLighting 

[davebYYPCU]

Is this a duplicate thread?  Ellipse on a cylinder?