This coral like form is the result of a simulation of dendritic
solidification, a type of crystal growth occurring in supercooled solutions of certain metal alloys.
You can see a video of the simulation running here:
This is our second attempt at making a dendritic sculpture appropriate for printing on a home 3d-printer. And I think it came out quite a bit better this time!
I've provided the piece in two sizes for printing, one is about 4 inches and the other 5 inches.
3d-printed in natural PLA on a makerbot replicator 1