This question is about whether such general-purpose manufacturing robots are physically possible, not whether they're cheap or easy to build.

If given an adequate power source, the requisite atoms, and no unnatural obstruction such as an unusually strong electromagnetic or gravitational field, a sufficiently-sized group of such robots must be capable of:

Each robot must be at most 1 milimeter long in every dimension.

The market resolves once our knowledge of physics and engineering is sufficent to have a definitive answer to the question.

The goal of this market is to asertain whether something like the "self-replicating nanobots" of science fiction are possible. The sort of robots that could easily wipe out humanity, terraform planets, and act as the ultimate manufacturing system for whoever controls them. I reserve the right to modify specific criteria of the market in order to keep it in line with that intention.