Norm, could interference patterns of two variable-energy beams fully and
richly color each energy-sensitive layer? Interesting concept. Perhaps
the right combination of a single such beam with the right material could,
to some extent, do the same thing.
Bob Crangle
Rose & Crangle, Ltd.
102 E. Lincoln Street
Lincoln, KS 67455-0285
785 524 3130 (fax - 3436)
----------
> From: Nkin@aol.com
> To: Mike.Miller3@PSS.Boeing.com; rp-ml@bart.lpt.fi;
patrick_dunne@hotmail.com
> Subject: Re: Constantly Changing Build Platform - amended
> Date: Monday, July 06, 1998 7:47 PM
>
> To: Mike.Miller3@PSS.Boeing.com, rp-ml@bart.lpt.fi,
patrick_dunne@hotmail.com
>
> In a message dated 98-07-06 18:41:36 EDT, Mike.Miller3@PSS.Boeing.com
writes:
>
> > How about a uv resin that requires the presence of two laser
frequencies
> > simultaneously to initiate cure. If the resin was otherwise
transparent
> > to the laser light then voxels could be formed anywhere in the vat by
> > intersecting the two lasers.
>
> Interesting concept - but isn't that the early ('60's?) "Swain method"
> (precursor to Kodama, Hull, et al) - worked on at Batelle - and awaiting
> additional funding? There were apparently great difficulties with the
> complexities of refraction and solidification - elegantly handled by
simpler
> layer-by-layer processes.
>
> - - - I was just out walking and realized this needs at least one
correction.
> I've lent out my best historical reading (wish I had those 280 patents on
CD!)
> but seem to think a "son" may have slipped from my memory. May have been
> Swainson about '67 and so? Sorry for the confusion. [I'm sure we'll
soon
> receive the correct info.]
>
> Also, maybe you've been thinking of having beams of different wavelength
> intersect on a surface - in order to vary the characteristics of the
> solidified resin?
>
> Norm Kinzie
>
> For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
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