Hi Malvin - your object looks good to me...

Are you referring to these small shading artifacts here:



If so then that is just a side effect of a display mesh that did not make a very large number of polygons in that area for the display.

It has to do just with the display and not really with your actual surface.

It is not unusual that you may see some things like this in the real-time shaded display, that display is focused quite a bit on doing things quickly and that can sometimes leave this kind of stuff visible.

The one that you want to pay more attention to is if you see stuff like this when you export. (or if it is a larger defect than just that, levels of that small amount are not unusual).

In this case exporting your mesh to a polygon file format such as an .obj file using a high density of polygons looks like this:





So everything seems to be looking fine there, just ignore those small defects in the real-time display.


One thing you also might consider for a kind of rounded looking shape like this is to use the Rail revolve command, it tends to make a nicer form right in the tip areas.

That would go something like this - pick this curve as the profile and then run Construct / Revolve / Rail Revolve



Then pick the other curve as the path, and pick the revolve axis between these 2 points:



That will generate this result - it is basically a revolve that is deformed to match the rail:



Surfaces of revolution can tend to have nicer shapes right near the tip/pole areas.

Hope this helps!

- Michael