Re: Noob question on SLS
Posted: 11 Jan 2020, 09:51
the board for everyone interested in 3d scanning
https://www.3dscanforum.org/
Good to know OBN, can you please show where you can find all these informations about matrices?OBNRacerMan wrote: ↑11 Jan 2020, 09:51 I don’t know how the scanning of this projector will affect the fact that a high resolution is obtained by shifting the matrix (the matrix size is 0.33 inches there)
“Correct” FullHD starts with 0.46 inch matrices
When I was picking up a projector for a 3D scanner, I read a lot of information on "projector" forums, where I found out that cheap FullHD DLPs have high-frequency matrix shift technology (120Hz) in order to be able to display the general projection field, which consists of two pieces .
Luckily here in NYC (and Amazon in the US) that have very liberal return policies. I can buy a projector and try it for 30 days and return it no questions asked. I was able to try out a couple of small laser projectors (which gave bad results) that way. If madding likes the PF50 I will get one to try. Finding a spec sheet that includes the pixel orientation screen seems to be harder to do.OBNRacerMan wrote: ↑11 Jan 2020, 13:38When I was picking up a projector for a 3D scanner, I read a lot of information on "projector" forums, where I found out that cheap FullHD DLPs have high-frequency matrix shift technology (120Hz) in order to be able to display the general projection field, which consists of two pieces .
Since everywhere they write about projectors from the point of view of watching a movie, no one could say the suitability (or unsuitability) of this technology for 3D scanning (and buying something like that to test is too expensive for me)
Yes, I am also very interested in how such a projector as a part of a 3D scanner will show itself. I found this on AliExpress (but buying from this year is already much more difficult - they imposed a limit of 200 euros on purchases in foreign online stores).