RE: [CAD_CAM_EDM_DRO] Laser level/Photo/Rhino

This is actually a good idea for smaller items but for some things it wouldn't be practical.  Good food for thought though!
 
Thanks,
 
Jack

--- On Sat, 2/14/09, Dave Halliday <dh@...> wrote:

From: Dave Halliday <dh@...>
Subject: RE: [CAD_CAM_EDM_DRO] Laser level/Photo/Rhino
To: CAD_CAM_EDM_DRO@yahoogroups.com
Date: Saturday, February 14, 2009, 1:32 AM






I forget who but someone on either this list or the MACH3 list had the great
idea of putting the model in a tank and then flooding it with milk every
1/4" or so and taking a picture from above.

This would capture all of the object and not just the area that a laser can
reach.

Doesn't do overhangs though but you could edit that in Rhino after input.

Dave

> -----Original Message-----
> From: CAD_CAM_EDM_ DRO@yahoogroups. com
> [mailto:CAD_CAM_EDM_ DRO@yahoogroups. com] On Behalf Of Jack Mc Kie
> Sent: Friday, February 13, 2009 4:46 AM
> To: CAD_CAM_EDM_ DRO@yahoogroups. com
> Subject: [CAD_CAM_EDM_ DRO] Laser level/Photo/ Rhino
>
> From time to time I need items scanned for reverse engineering. This
> is expensive and in some cases over kill for my scale model parts.
>
> What I propose to do is get a rotating laser and shine it on
> the object
> to produce cross sections. These cross sections will be
> photographed
> and used as bit map background in Rhino. I have seen this done in
> Canada with specialized software but beleive it can be done
> with Rhino.
>
> I have no access to a cheap laser and am wondering about the
> quality of
> the laser beam.
>
> Does anyone have one of these lasers? I want to know the
> thickness of
> the beam at a distance of about 3', 6', 12'. Anyone know how
> accurately aligned the laser is?
>
> Any insights on these cheap sub $100 lasers would be appreciated.
>
> Jack
>
>
>
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