I know this may sound kind of silly, but im working with a spline thats wrapping around a circular object, and at certain points the line (when rendered as rectangular) will lay flat on the object, and then at other times it lays on its side. rotating the vertecies and messing with the beziers will not fix this, and im wondering if theres ways to twist certain parts of a spline, while still keeping it as a spline (meaning not going into editable poly), i want this piece to keep the same thickness all the way around, which is why i dont want to mess in edit poly. if anyone has any suggestions, it would be greatly appreciated. here's a screenshot for reference to what im talking about.
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This means you'll use an edit poly for it, but it's more control than a rendered spline in this case I think?
If you still can't work out the unwanted clipping and way it's sitting, maybe using the path deform means you can always deform a new one to it and repeat steps, then you can use soft select with a collapsed version to rotate pieces by hand.
You can try to draw a new spline, too, a few of them, in different orientations as you place your points, maybe it will help to have a few (then at least you might find one spline that needs very minimal tweaking after it).
You can use Loft and twist to change the orientation of the spline. Add as many points as you want and start tweeking. Also, if I remember corectly you can add the same shape in the loft path in desired location and then select this shapes and rotate them.