DLP projection has a lot of advantages, the area projection is one of those. For large area beamers are moved; see moving light technology by prodways https://youtu.be/1AQJaqdrzzE . There is no longer a real difference then.
Lasers can go below 200 nm using dual photon (nanoscribe) or sted lithography.
rotating mirrors are too fast for laser industry, it requires a very fast switchable laser, like the one developed by european union https://www.razipol.eu/
true it is a nice machine.. but laser bundles have advantages. You can direct other wavelengths, sinter powders and get to much smaller features. All these LCD printer, do show a pixel size but not a real spec or accuracy. If you go really high end even for mask projection with UV led you need expensive lights see https://www.idonus.com/activities/products/mems-products/uv-... ... costs around 20K i believe.
expensive is a matter of taste. The envisiontec 3SP costs well over 5K euros and can go up to 100K. You can only get a a price if you ask for a quote. Carbon 3D does not sell their printers you have to lease them. Formlabs does sell you a printer at 3.5K but you can't use third party resins, so
you decide. I actually know some open-hardware printers which sell for 5K.
That is indeed.. how i decided to brand it and this seems working. In reality both systems have different optical properties; this does matter if you push them to the limits.
Galvanometers are slow, require more calibration. Rotating devices don't stand still at the end of a sweep and are much faster (10 times).
Of course, what’s worse than a weak start is simply not starting at all. Moreover, if you’ve publicly disclosed your invention, then you have only a one-year grace period to apply for a patent. You forfeit your patent rights if you fail to file within the 1-year grace period. http://www.patenttrademarkblog.com/first-to-file-patent-rule...
In the EU.. you destroy immediately.. there is no grace period.
