[Bazinga]

I tried 4 or 5 different approaches to create a circular cylinder but there is always a difference between the surface (green) and the perfect circular curve (blue).
Selection_082.pngSelection_083.png

I assume that this occurs because the surface is created using small elements as shown in the 2nd figure. I understand that these elements are needed, so my question:

Is it possible to increase the number of elements that create the circular surface for improving the circular shape.

It seems odd that I will later have cells that are smaller than the elements that create the circular surface, but the "roundedness" is limited by the surface creation process.

[Gert-Jan]

Settings>Model/Units>Topo Tolerance and Triangulation

[Far]

Gret-Jan gave right answer. But if you look at the perfect curve from microscopic view, it will be just combination of very small straight lines.