I believe that process is called stereolithography
and also possibly fused-deposition-modeling
as may be seen at ...
At 02:27 PM 9/25/03 -0500, you wrote:
On Thu, 25 Sep 2003, Bryan Pope wrote:
And thusly Tothwolf spake:
Clear cases are usually made just prior to any
texture being added to
the production molds. Usually they are used for engineering purposes
(making sure it all fits), but sometimes they will also use those
cases for demo/promotional purposes too.
Just a thought....
Is there any *other* way to tell that this is an original? What if
somebody went and made a new clear plastic case and replaced a normal
case? How much does a normal cased HP-85 go for?
The 3D printers out there are getting cheaper... (relatively!)
I seriously doubt someone (at this point) would make up a new case with a
laser system.
I've seen cases made with 3-D lasers (my old employer was a pioneer with
the process). They're very rough. The process leaves DISTINCT ripples in
the surfaces and it's obvious that they're not normal cases. The chemicals
used in the process are VERY expensive. In addition you would need a 3-D
CAD drawing to operate the lasers. The process is MUCH to difficult and
expensive for use in making fake cases, especailly for something like an
HP-85 that's usually cheap (<$100) to begin with.
Joe
Making molds to create just a few cases the old fashioned
>way would also be extremely costly, so I don't think we have to worry
>about it just yet. Maybe in another 5-10 years though...
>
>-Toth
>