UV is what the resins need to harden.
"Because of submitting too fast..."
REPLY:
Ok. I just came back from MRRF (Midwest RepRap Festival), and nothing came out about the accessibility of visible light cured resins.
It may be a cool lab invention right now, but if I cannot buy it in 200ml quantities to experiment with it on my own, it effectively doesn't exist.
It also makes me very skeptical that you are wont to correct me about "there are visible light curing resins"... yet their own media material shows clear bottles holding the resin. I would expect a nice semi-hard cylinder of somewhat cured resin if that's what they are using. My guess is they are using a FormLabs, printing the pieces, and then putting 'liquid' in the clear bottle.
Something doesn't add up here. I'm surmising a scam.
Edit 2:
Really now? I highlight a problem with the physics of what they are showing, and downvotes? How about a discussion rather than silent disapproval?
Perhaps not coincidentally, these resins seem to be sold in less photogenic opaque black bottles, but this does make it more likely that a resin actually exists.
The part of the article that bothered me more was the explanation of the principle of operation:
At the bottom of the reservoir, there’s a piece of polarized glass which you place your phone underneath, facing upward.
The polarized glass then takes all this light (which shines outwardly to give your phone a wider viewing angle) and redirects it so that all the photons are traveling straight upward.
I don't think that's how polarizing filters work. But perhaps this is just an issue with the 3rd party reporting rather than with the product itself.