∗A universal constructor∗ is a machine that can replicate itself and - in
addition - make other industrial products. Such a machine would have a
number of interesting characteristics, such as being subject to Darwinian
evolution, increasing in number exponentially, and being extremely low-cost.
http://reprap.org/found at
http://en.wikipedia.org/wiki/Fused_deposition_modeling[Non-text portions of this message have been removed]