Any suggestions for creating foldover ring?

Hi, I’ve tried a few ways of doing this. Sweeping along spiral curve with profile curves seams flipped opposite, bending with symmetry on and off, twisting a flat polysurface, cutting a straight section in the middle at a 30deg angle and flipping over the one half to form a 60deg angle and again bending and twisting etc…
Used a piece of paper strip to visualise the method but just can’t get it just right with a mouse.
US size 8, UK 57

using subd will allow a 2-step-flowalongSrf aproach:

  • draw a z (or s) shaped belt (front)
  • flow it along a U-shaped surfaces
  • flatten the left and right part
  • flowalongSrf to the ring
  • i needed to fix the subd’s normals
  • offsetSubD

above workflow might (partially) work with History.
The SubD at the beginning might profit from another face layout- the already reflects later deformation…

EDIT

second version

same workflow as above - but the initial subD 's faces are more parallel to the first deformation - parallel to the overall axis.

split it at the cylindrical part should result in a nice ToNurbs surface for further steps / edit.

hope this helps - kind regards -tom

4 Likes

Great.This points me in a good direction. Will definately try this. Thank you so much for the effort.