The accuracy needs to be ± 0.05, ±0.02or below would be great.
Resolution not so high as I’ll redraw it anyway, so the accuracy of getting cross sections of the object is preferred.
Thickness is max around 20mm, length 60mm 〜110or so, and width maybe 40mm.
I found a software solution which uses any digital camera images, just multiple shots to get a 3D, but need to test out how accurate that is…
There is a software thats call Photoscan - Agisoft, that does a pretty good job, but you need to read the manual to use it decently. The way you take the photos is very specific, and you have to adjust the properties for the camera. I would say that works better than a lot of low price scanners
You’ll need to have a substantial budget to get that sort of accuracy, meaning tens of thousands of dollars. If you’re scanning as a one time project it may be useful to look into outsourcing the scan.
Hmm. I only had experience with handheld scanners, but… If i understood it right size of the whole object you have to scan is about 100x70mm. Space Spider can scan such small objects with good accuracy, I But I don’t think it would be a wise choice. Anyway I left the link to manufacturers site, so you may read about it yourself. But As I know there are desktop scanners designed for objects of this size.
its supposed to give you the exact curvature of any surface. i will of course not work like a 3d arm at least not from what i have seen if thats what you need.