Try Geometry Gym tesselation...

http://www.grasshopper3d.com/group/geometrygym/forum/topics/sdrcf-c...

I know this is somewhat off topic but if I had a set of voronoi geometry how would I create a similar blended pipework look in grasshopper? I have tried searching the forum but am not entirely sure what to be searching for.

Thanks in advance

Maybe little late but something like this: