3D Scan Forum

Micr0 wrote: ↑17 Jan 2018, 16:47 Yesterday I got some time in the shop so I had a very close look at my calibration panels. I was surprised to find a number of errors and problems. Without remaking the panels, which is what I should do, I adjusted and fixed as best I could. The results were far better scans when calibrated with these panels (225mm). When I get some time I'm going to have to look more closely at all the other I have. Live and learn.

@bigbomber I see what you are saying about the jagged edges. the better the calibration the less obvious and present these edges seem to be. I still don't exactly under stand the mechanism behind this, or what in the projector is causing this.

I tried your panel experiment with after I "fixed" my 225mm panels and got better results but still not great. However when I scanned a small casting the scans were pretty good.

Another thing that seems to help is using an inverted corner.

Cal Panel 1-16-2018.jpg

Cal Panel 1-16-2018-2.jpg

It is interesting that one side seems flatter than the other. A Note. I'm scanning with my laptop here and not the computer I usually use. I haven't gone through the video settings on the laptop to match the tweaked setting I have on the other machine so that may be part of it.

Here are the actual scans I did.

JoeHuntMag1.jpg

JoeHuntMag2.jpg

Micr0 wrote: ↑17 Jan 2018, 16:55 P.S. This are the Raw scans after after rough alignment. The surface is a but rough but you can see the alignment is excellent.

JoeHuntMag3.jpg

erapip wrote: ↑20 Jan 2018, 10:51 I try to optimize the setup and scan a LAMP support white coated spry. i must say that the FUSION process is amazing how it works.
Equipment's:
1) Nikon 5300+50mm lens
2) Blackmagic Intensity Shuttle
3) Optoma EH1020

erapip wrote: ↑20 Jan 2018, 10:51 I try to optimize the setup and scan a LAMP support white coated spry. i must say that the FUSION process is amazing how it works.
Equipment's:
1) Nikon 5300+50mm lens
2) Blackmagic Intensity Shuttle
3) Optoma EH1020

bigbomber wrote: ↑20 Jan 2018, 16:30

erapip wrote: ↑20 Jan 2018, 10:51 I try to optimize the setup and scan a LAMP support white coated spry. i must say that the FUSION process is amazing how it works.
Equipment's:
1) Nikon 5300+50mm lens
2) Blackmagic Intensity Shuttle
3) Optoma EH1020

Hi erapip. Your comparison of scans of calib panel shoez very low distortion. All area is green. But I'm not sure how much enough did you change the position of your setup or calib panel to capture the second scan.

Micr0 wrote: ↑20 Jan 2018, 14:10

erapip wrote: ↑20 Jan 2018, 10:51 I try to optimize the setup and scan a LAMP support white coated spry. i must say that the FUSION process is amazing how it works.
Equipment's:
1) Nikon 5300+50mm lens
2) Blackmagic Intensity Shuttle
3) Optoma EH1020

Thanks erapip. nice scans.

What scale did you calibrate to?

If it's not too much trouble, can you physically measure a few points on the Subject and compare them to measurements done an David and post the results? I'd like to see how dimensionally/positionally accurate David is here.

Have you though about removing the color wheel from you projector? If you do, can you do a before and after?