Re: [CAD_CAM_EDM_DRO] 3D scanners

At 01:22 PM 11/27/2007, you wrote:

>Know anything about 3d scanning? Our new HS shop teacher is an
>artist, but not a technology guy, so I've been talking to him about
>the cnc router I want us to build. He's been luke warm, but when he
>mentioned his 3D class yesterday, and I told him I thought that
>scanning something ­ like a face ­ and then producing it with the yet
>to be built router might be within our reach, his eyes lit up. I've
>done some research today on homebrew scanners, and found a few college
>projects, plus DAVID, but am really starting from scratch, so any
>input on the scanning part would be welcomed.

Cheap and dirty -- take a USB camera and a box
with a contrasting opaque fluid. Put lines every
so often inside the box. Capture the image for 1mm, 2mm, etc.

You now have the contours of the object at 1mm intervals...


David G. LeVine
Nashua, NH 03060