It would be really neat for 3D printing and scanning. However, I don't think it'll work with functional prints given dimensional accuracy is important. photogrammetry still has a 1-up on this I believe.
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i stumbled on your post about eye tracking needs for a relative dealing with MS.
i have some previous experience working with the tobii 4c and the 5 using more off-the-shelf solutions, as well as the more 'true medical grade' side of the tech, and may have some recommendations and learnings to share.
i have temporarily added a way to contact me into the about section of my profile. once i hear from you, or in about a week, i'll clear that out.
drop a line if you're interesting in discussing.