CNC scanning

iaian7 » blog John Einselen, 17.02.07

It’s been an interesting week! I’ve gained limited knowledge on CNC operation, and at least one of my landscapes has been scanned as a final 3D model. The sculpey clay used is fairly translucent, so it’s tough to get an accurate reading with the laser. It’s decent enough for a rough scan (which we did previously), but the resolution was pretty low. The best is an opaque medium gray surface with low shine (matte primer spray paint is excellent). Unfortunately, the uncured sculpey hinders drying of spray paint, so we ended up scanning it shiny. It still worked great, since we could get accuracy of about 87% instead of 27%! Nothing more fun than watching a massive machine scanning in 3D with a laser… well, maybe there is, but I haven’t topped it yet this week.

Elihu Ihms, 23.02.07

Have you thought about dusting it with a powder of some kind?

iaian7, 23.02.07

Instead of painting? No, I fear that a powder wouldn't provide enough opaqueness, and at sufficient thicknesses might obscure the scan and give erroneous readings.

It was suggested to dust the undried paint with a powder, but since the shininess didn't seem to be interfering with the scan, we didn't worry about it. I did however absentmindedly lay my coat on top of it this morning, so currently it's locked up in a drawer where no one can accidentally ruin coats.

CNC scanning

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