Sigma Labs Inc (SASI)

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I think a key difference between Sigma's product and the others that you speak of is scope. ARIA and Blizzard were creating products that would benefit themselves while Sigma is developing a product that will benefit the whole additive manufacturing industry -- in fact, it could be argued that without such an IPQA technology, it will be impossible for additive to move forward as the repeatability of printing will be inconsistent or at best, inefficient.

I think a key indicator of what might come next is the recent hiring of employees. It would make sense that if they were still having trouble developing PR3D, they would hire additional scientists or experts. Thoughts?