That looks like the method for creating g-code paths to give the effect in the picture, rather than actually modelling the shape as it looks like lots of separate shapes stacked on top of each other instead of one continuous surface or mesh.
Try this…
It is using some script to create the mesh from dividing the initial profile curve and arraying the points.
The script is from this discussion… https://discourse.mcneel.com/t/construct-mesh-from-rectangle-vertices/190650/7
Then it gives alternating +ve and -ve distances to stellate the mesh, one face inwards, next face outwards and so on.
Bobbles.gh (11.7 KB)