I am making a bendy tube. I need this tube to be made in two halves. The tube need a 1/4" thickness. I analized my curves, made sure they were running in a uniform direction. I try to sweep the two rails with half round cross sections and the resulting surface creates problem areas where the normals go in different directions than the rest and I see no way of changing just those areas. This also creates some funky artifacts that blow out in those areas. This is intensified when I try to offset the surfaces. Anyone have a fix?
reworked stem linework.3dm (3.0 MB)
The two red curves used as rails have some messy control points near the middle. That’s the reason for the problem.
I am trying to understand your model and have some questions.
- Are the rings all circular and do they have the same radius?
- Are they perpendicular to the centreline of the tube in the xz plane?
- Are they deliberately not perpendicular to the centreline in the yz plane?
- Are the cutting lines deliberately not in line with the centreline in the back viewport?