Interesting product. I especially take note of the design of their “light engine”, which looks pretty much like a direct ripoff of the Form3 design…
https://www.kickstarter.com/projects/emake3d/galaxy-1-the-17-large-scale-sla-3d-printer
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Their light engine looks very much like a classic laser printer scanner unit with a polygon mirror, so it will probably have the same issues with sharpness at the edges.
As far as i understand the F3 laser unit was designed to avoid that, the beam is always perpendicular to the build surface:
Also there is very litte information about the vat on the Kickstarter page. Big bottom-up SLA systems always have issues with adhesion forces. As far as i can tell the part cross-sections in the demo prints aren’t that big.
Edit: Actually the box shaped print seems to have substantial cross sections, so maybe the machine can deal with that issue.
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