3 ms·
Uh, that's a standard resin printer. Except horizontal plus rotation instead of vertical. Trades angular resolution for vertical. Yes, they can be fast. They
by AstralStorm 8y ago
Uh, that's a standard resin printer. Except horizontal plus rotation instead of vertical. Trades angular resolution for vertical.
Yes, they can be fast.
They should fix their headlines.
- Jarmsy 8y agoExcept standard stereolithography only solidifies the outer surface layer.
- Leynos 8y agoCould multiple projectors (at e.g., 120 or 90 degree angles) be used to speed the process further?
- IshKebab 8y agoYes.
- jfoutz 8y agofurthermore, multiple projectors could increase resolution. if there's an energy threshold to overcome to cause hardening, and if you can arrange for 2 sources to just barely exceed that threshold, then you could have very crisp prints. chemistry is statistical though. you can exceed the threshold, but nothing happens because you get unlucky with some fraction of the light. You don't exceed the threshold, but you catch a bad reflection and harden stuff you don't want. and there's probably not a crisp threshold for hardening. it's more likely just time under light. But i think you're right. two projectors at half power (let's pretend it's linear), with the projections 90 degrees out of phase, i think the print quality would go way way up.
- IshKebab 8y agoNo it isn't. A normal SLA printer like a Form One prints a slice at a time and crucially it doesn't "print" in the middle of the liquid - only at the surface. This works as the article says, like a CT scanner in reverse. The resin solidifies all at once in the middle. It's very different.