Circle Segments - How do I increase to create a smoother curve

[RobWhite]

I am creating a large curve portal beam. 27000mm radius. How to I increase the curve segments? The default has too long segments in the curve, which does not look curved. The view of the I beam should be a nice, curved bend rather than an octagonal... hexagonal etc stagger look.

[glennw]

I assume you use a 3D Solid and curved it.

Select the Solid by the curved edge.

On the Edit menu select Convert Curve To Polyline.

You can then specify the number of segments.

[DBCooper]

The other thing that can work is if you select the arc and open the dialog you might get the "selected arc" panel.  You can then uncheck "auto facet angle" and change it to a smaller value, something like 1 degrees instead of 7.5.