it looks like it’s the very same lamp as shown here:
in particular this picture where the lamp is off shows a LOT of important details: https://d2j6dbq0eux0bg.cloudfront.net/images/74715017/4503645619.jpg
if you want to print it with FDM then you’ll need trajectory curves that will be used to create the Gcode for your 3D printing machine
speaking about the structure of the lamp, it looks like there’s a perfect circular layer which gives structure (1) followed by two layers with ondulating protusions on same position (2) (3)
then there’s another package of those (1, 2, 3) where the position of the protusion is swapped, and so on, and so on…
about the bellies, it looks like they are protuding more toward the bottom of the lamp, and less toward the top:
something like this could be a starting point:
FDM_lamp.gh (18.8 KB)
each package is like circle, belly_A, belly_A followed by next package circle, belly_B, belly_B
the graph mapper controls how much the bellies are protuding depending on their height relative to the whole print:
this is just a sketch, consider that there’s SO MUCH optimization you can still put on that, like for instance the whole thing is made of straight lines joined into polylines and then filleted -not a good solution AT ALL, but gives you the idea- and also the bellies are now generated as a single point wich makes a pretty steep corner… you might want to insert 2 points instead of one in order to create a bit more curvy wave (and eventually use Interpolate Points with Periodic=True instead of Polyline)