Sometimes it's the simple modeling tasks that stump you.

I'm looking for the easiest way to terminate a one-rail sweep made with a circle profile.

Instead of a flat cap, I want a half-sphere like the photo.

The photo is just a simple example of the type of termination I need- I know in this particular case I could revolve the bar and then deform it to make the picture.

But I'm after a quick method to terminate various complex rails swept with a circle. So, instead of a blunt flat cap I want a rounded end.

Ed