i try to loft a cone but it goes wrong, i hope you guys can help me to get a more smooth finish
like the right one in the picture i loft with rhino, i do this in grasshopper because i like to
play arround with the circle radius. it build from 3 parts a pentagon and 2 circles
The Grasshopper Loft component will not automatically adjust closed curve seams, you might want to look at connecting a LoftOptions component to Loft which will allow you to do that, or adjust the seams beforehand with the CurveSeam component.