This is not the shape we originally tried to achieve in this thread. To borrow a very old movie title (1966!), it’s more like A Funny Thing Happened on the Way to the Forum.
spiral_vase_2025Jun22a.gh (44.3 KB)
The sliders at the top create the white curve, best in Front view? The number of points is arbitrary. The sliders are zero-to-one to keep the curve proportional as the ‘X_Max’ and ‘Z_Max’ sliders are changed. The ‘Steps’ slider in the orange group sets the number of sides. The code below the orange group adds thickness (‘Scale’) and a bottom to the vase.
Many things could be done differently, primarily the number of twists which is affected by sliders in the blue group, left over from the original task of steps around a cone.