RE: [CAD_CAM_EDM_DRO] Laser scanner project, parts cost under $100, file uploaded

Sounds like a fascinating project Dave, I'm really keen to see how you get
on. Have you considered a calibration process. Many of the cheaper cameras
distort the image around the edges..

Cheers

Paul Kelly

> -----Original Message-----
> From: CAD_CAM_EDM_DRO@yahoogroups.com
> [mailto:CAD_CAM_EDM_DRO@yahoogroups.com]On Behalf Of ibewgypsie
> Sent: Saturday, 23 July 2005 7:53 AM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Laser scanner project, parts cost under $100,
> file uploaded
>
>
> Howdy..
>
> I got the laser led's mounted on my machine, basically it is just a
> Sears $39.99 Laser trac cut into parts, reinstalled into a aluminum
> bracket. The led's throw the "stripe" of light by using a waffle
> lookin lens. Using a USB logitech camera to scan it with, I am having
> problems withe the camera pulsing, so I am thinking of writing a
> picture file then using a windows subroutine to read the hex data in
> each pixel.
>
> Software is about 70-80 percent complete. I have the basic
> interface form in visual basic and letting people upload it. I'd like
> to sell the software and plans on ebay for a while to cover all the
> time I have in it already.
>
> Unit works by basic triangulation. You shoot the laser stripe, then
> the camera is a known distance and a known angle, you measure
> deviation of the right triangle in pixel to inches. My camera is a
> 640x480 but the ocx I am using sets the picture up to whatever camera
> is configured in windows.
>
> Any help? I'll post the basic exe file on the files section. I need
> comments to change items. Scanning is not up and working yet. I am
> thinking of using two slider scales to set pixel deviation
> (recognition) and you click on the laser line in the beginning to
> "grab" the color spectrum. Anything within the percentage of the
> sliders would be a "on" pixel. The program grabs the hex number of the
> point where the cursor is. play with it and lemme know.
>
> I am not the smartest person here, nor in the world, but I am
> stubborn as heck and keep hitting my head on the monitor and solving
> problems.
>
> David
>
>
>
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