Excellent point, Al. This system could use the same business model that conventional printers now use: sell the "printer" for break-even or even a loss, and make the money off the sale of the printing material.
Apresher, then there will be a more subsidiaries for the materials. That's what happens to the inkjet printer market, now there are many refills to the HP branded printers with the half of the cost of a new HP cartridge.
We all tend to think about innovations like this as engineers. Try thinking like an artist about this product! It allows an artist accomplished in drawing, painting, etc. to readily transfer those skills to scultpure. To revert to engineering thinking, that's really just moving from a 2D world to a 3D one! My daughter-in-law, the graphic designer, would LOVE one of these toys!
This technology has all kinds of potential, especially if they are able to reduce the cost (maybe $59 for the pen) and then sell the material at higher prices. Not sure about the cost of the material itself but this is really cool stuff. Excellent post.
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