Randy,

   I have seen this on beyond 2000 and other shows. I heard they use 2
lasers x and y . The epoxy is like the dentist use, when it is exposed to
ultraviolet light , it hardens instanly. The lasers are computer controlled
by cadcam , where the lasers intersect the 2 frequenceys combinded create a
point of ultra violet light and walla, instant prototype.

Glen Benson


At 03:43 PM 7/14/97 -0700, you wrote:
>I read in this months Popular Mechanics about a company that sells a device
>which creates sold model prototypes.  As far as I can tell, a container is
>slowly filled with an epoxy compound, which is hardened, layer by layer, by
>some sort of laser.  The result is a 3-D epoxy model.
>
>TIA
>Randy
>walsh@writeme.com
>