Just trying to get clear on what you are looking for

Are either of these Closer?

Hi,
thanks.
Both are much better than mine. Neither is perfect, but that's because of the lines I was given. The green one feels nicer. How did you make it?

Hey Mala

Its done with sweep with the maintain tangent selected and the maintain height deselected

But the caveat is the curve geometry needs to be fixed. Its pretty messed up with little folds and such, which is probably what is keeping you from getting a result.

It is what is also making the surfaces in the model i posted “not great” also.

Some type of cleanup needs to happen. The “cant change the curves” statement is making you kindof stuck

Maybe follow up more with Michaels post and get a better answer too….

Hi Michael, thank you...
...I can't publicly show the surrounding structure. It's a development I'm still forced to keep to myself. I agree that a solution would certainly be more easily achievable with the constructive context. I'll see if I can get on with BurrMan's approach...

Hey Mala,
I made a couple brief videos with your model and geometry to give some insight as to what you are looking for.

Here is one that shows the main culprit. But I also use this to show you "rebuild" and also talk a little about a common error made in "adhering to some unrealistic tolerance"

The CAD modeling will model things to pretty tight tolerances. even at unrealistic levels. Think a microscope on a razor blade. At some type of zoom, the sharp blade will look like the edge of a rock!!!

So applying your understanding of what may be needed (A welder fills in gaps on pipes) you can adjust expectations to meet the real world and get great results!

Here is one more. In the first video i left it with one area still showing error or non satisfactory results.

I found it and fixed it (Just quick and dirty. may need more thought to fix)

Wanted to show you...

Hey Burrman,
I'm doing very well with that. I'm going to focus more on the micro-level distortions that I've ignored up to now. I'll get around to it again this week. With the impulses, it should work very well. Thank you very much for your suggestions...

You’re welcome Mala!

Good luck….