Re: Braille Plotter

From: DAVID ANDREWS (da0011@epfl2.epflbalto.org)
Date: Wed Nov 23 1994 - 12:38:59 PST


 There was such a device shown at the NFB convention in the late 70's or
> early 80's, although it was not computer-controlled. A vibrating pin,
> which could be started or stopped via a push button, was moved beneath
> the paper as one moved a drawing handle on the top side. I believe a dot
> forming element was connected to the drawing handle, and both were
> mechanically linked to the vibrating pin beneath. As I recall, one could
> achieve an almost smooth line, although the higher the density the
> longer the time. In theory, such a device under computer control could
> place braille labels on a drawing, although it would be slow compared to
> an embosser in that respect. I believe that the projected cost of the
> machine I saw was under $1,000, but I haven't heard of it since.
 
We have a device in the Technology Center called the
(well, the name has temporarily slipped my mind)
but anyway it draws on plastic thermoform paper in a manner similar
to what Steve has described.
The company is out of business though.

It is okay, but a little difficult to use.
It is easy to rip the paper and it is noisy.

>
> I am also wondering if anyone has had any hands-on experience with the
> device shown in Detroit that raised an image placed on special paper by
> a laser printer. One printed an image on special paper then ran that
> copy through this device and it came out nicely raised. The add-on
> device was $795, but the paper was something like $1 per sheet. I
> thought the results were very good, and the initial cost relatively low.
> However, the long-term costs in terms of the special paper were high.
>
> Again, sorry if my ignorance is showing!
We have ordered one here, so you can see it at the
end of January, Steve. I don't have it yet.
David Andrews



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