I have a problem with making a smooth surface model. It becomes a bit bumpy and I don't know what I should do different to get a better result. The left picture is what I got and the right one is what I want.
One problem is that I can only use the horisontal lines as guide lines. The vertical line does not cross both of the lines that makes up the surface and it seems as it for that reason can't be used. Does anyone has any idea of how I can make this model in a better way for a smoother finish? I tried filled surface but it does not work very well, and I guess I can make even more horisontal guide curves but that seems excessive.