I am making a DNA finger ring. The issue I am facing is that the cross section of the bars and that of the outer-frame is getting twisted and flattened - I want them to be uniformly circular in cross section. The cross section of the outer frame should be slightly larger than that of the horizontal bars. I used this youtube video: https://www.youtube.com/watch?v=8yDwOGJYoho , to create the main DNA structure and then used a simple deform modifier to bend it into a ring.
Highlighting the issue a bit better in the image below:
Can someone suggest how to fix the issue? Even if it means completely redoing the model, I am fine with it. Thanks in advance!