I "exposed" pre-sensitized boards using a ordinary
desk lamp fitted with one of these small, 12V, 20W
halogen lamp bulbs (with two pins). Take some
10-20 min with the lamp aprox 10 cm over the board.
The film is standard OH film with pattern printed on
a HP DeskJet 960C (mostly from PDF files downloaded
from e.g. the Elektor site).

Another method I have been thinking about, but not tested,
is to put the board and film in the scanner part of my
HP OfficeJet R series (with the flatbed scanner on
th top), and then just run a number of "scans"
or "copies". I'm not sure that the lamp moves with an
even speed, depending on the setup it often moves a few
cm's, then pause and so on. Well, might not work at all...


Kyrre Aalerud wrote:

>Might be some sort of daylight reading lamp you got there.

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