3 ms·

So this is more of a 3d printer head rather than a proper 3d printer? It would still need external moving parts to handle the resin and such.

• neltnerb 2y ago
  Correct, the resin is not part of the chip. It controls the phase of the light as well as the intensity, which is novel compared to a galvo. The paper suggested holographic curing, which sounds like a joke but it seems is a real thing where they use three photons to cure and controlling phase lets them do that somehow. But it's only kind of mentioned offhand, so I'm not sure how serious they are about it.
  • timschmidt 2y ago
    Sounds similar to what these guys are up to: https://xolo3d.com/ https://xolo3d.com/ They have a novel photoinitiator which requires light from two different wavelengths to initiate polymerization. They currently scan a plane of laser light through a static resin vat while projecting a 2D video through the same vat.
    • neltnerb 2y ago
      Looks very cool, thanks! Yeah, that's the kind of thing I mean, it sounds like there are a few ways to do it. The paper cites https://pubs.acs.org/doi/10.1021/acscentsci.3c01263 https://pubs.acs.org/doi/10.1021/acscentsci.3c01263 which is triplet even, though who knows what the research group would do if they actually implemented it...
• xg15 2y ago
  From what I got, it replaces the printer head plus the entire positioning assembly of the head. It's still not the entire printer, but it would massively simplify the mechanical construction.