3D printing for art, how can it replicate?

http://www.exeterphoenix.org.uk/art/?page=2

Still thinking about the 3D printing show at the Phoenix in Exeter next month. Will the art be in unlimited editions? How many works will have been modified by the artist? I think some will come straight from the machine. 

The name of the show is "Neoreplicants", this implies there is a way for the form to spread.

Previously we spoke on the Wild Show about limited editions of woodcut prints. A woodcut carving will be damaged by too much use but I can't see how there is any limit on 3D printing once the model is finalised.

I have found this link for a recent show in London, mostly a trade show with industrial applications.

I wonder if there is a policy yet, maybe it varies. More later, any link suggestions welcome.