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Video P*r*o*b*i*n*g / Getting started with 3D scanning
« on: August 26, 2011, 03:48:07 AM »
I'm trying to get started with 3D scanning using my CNC router for the scanning movement. I've purchased a webcam (Microsoft Lifecam Cinema) and a line laser (Apinex 03016AL). In looking through the posts, I saw a drawing by Tom Hubin of a bracket that he used to hold the camera and laser, so I started to design a similar bracket for my hardware. But there is something that is confusing me. If the camera and laser are mounted on the same bracket, then the laser line will always be in exactly the same place in the camera's field of view. Even if the CNC machine scans the setup back and forth, the laser line never moves in the camera picture. I would have thought that the camera would be fixed while the laser line moved. That way the camera would see the laser line moving across the entire object being scanned. But Tom has them mounted together. From what I can tell, Art's setup does the same thing.
I don't understand. I'm clearly missing something. Can someone explain to me how it all works with the camera and laser moving together?
Thanks,
Mark
I don't understand. I'm clearly missing something. Can someone explain to me how it all works with the camera and laser moving together?
Thanks,
Mark