@Bldt
Given existing limitations this is the cleanest/nearest I can get.
- The Profile was replicated at 15º intervals around a Circle longitudinally horizontal to the Plane.
- The 180º Twist was created by rotating appropriate Profiles by increments of 15º.
- The Loft ‘start-finish’ position was chosen in anticipation of the inevitable ‘join’ Profile(s).
- The chosen option was to Copy+Move, by 0.001mm, the Profile opposite to the Twist Centre Profile.
- An alternative would be to Loft up to the penultimate Profile to create Body 01 then Loft between faces to create Body 02.
- Cutting out a similar section of the Möbius and attempting to ‘bridge the gap’ was very problematic.



