This design is based on the same Grasshopper definition of the previous entry. In this case the Mesh Pipes have a bigger maximum radius and the effect is very different.

The lighting effect was achieved by dividing the shapes in groups and assigning them different materials in Blender.

The image was rendered in Cycles. The light color shift is driven by the Fresnel effect and the Neon glowing effect was done directly in Blender's compositor.