From: Robert Baer
X-Mailer: Mozilla 4.75 [en] (Win98; U)
Subject: Re: How to make scales?
Date: Sun, 17 Nov 2002 01:51:53 GMT
NNTP-Posting-Date: Sat, 16 Nov 2002 17:51:53 PST
Organization: EarthLink Inc. -- http://www.EarthLink.net
> On Sat, 16 Nov 2002 00:57:35 -0000, "John Jardine"
> >George wrote in message
> >> As an amateur, I like to build scientific instruments. I'm looking
> >> information on how to produce scales with techniques like these:
> >> - photoengraving on metal (aluminum and brass)
> >> - photography on ceramic
> >> - photography on enamel
> >> Other techniques, suitable for amateurs, are welcomed! :)
> >> These scales should have a diameter of 20 cm about.
> >> Is it also possible to use scales drawn by CAD?
> >> PLease, answer on the NG.
> >> georges
> >CAD (eg Designcad) plus 1440 dpi printer can make excellent scales. If
> >printed on clear film, items such as optical gratings can come out very
> I already tried Google, without success.
> I also made eccellent scales with CAD and I printed them on paper, on
> card, on clear film. I woud like to make scales on metal because they
> are rigid and they last for a long time. Also scales on plastic plates
> could be good. Do you know a technique to do them?
...and i think i already mentioned that a photograph on paper can be
glued to the back side of an existing meter scale; this allows one to
swithc the meter back to its original use.