>optical fiber plotter

The only snag I can see is that the UV grade fiber and optics will be so
expensive for most people to get, it would equal 10 PCB house
prototype orders, at a minimum, or the price of a complete PCB etch kit
(through hole, plated !) plus some CAD software, and good stand drill
thrown in for balance. Afaik a UV lamp + fiber set starts at about $2200.

And no, you can't improvise. Normal lens glass attenuates UV to such a
point as to be useless. I think that silicon manufacturing uses a special
atmosphere when exposing with UV (oxygen and nitrogen(?) absorb UV). They
also use reflectors (mirrors) and not lenses to focus an image.

There is also the matter of adjustment which requires a CCTV camera (can't
see UV, and you DON'T WANT to see it).

Peter

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