Your image should always be facing downward. As the copper is etched
away, the copper residue will be taken away by gravity. You can speed
up this process by using a cheap aquarium pump and strapping it
outside your etching bucket. The vibration speeds up the action of
the etching. See my article on:
Suspending your piece is easy if you take thick styrofoam and some
double sided tape. Stick it to the back and the styrofoam will act
like a pontoon and keep your metal submerged, but not resting on the
Newer photocopiers depend on speed and electrostatic depositing of
carbon based toner to the film. The slower and older the copier, the
better the carbon deposit. Ink jet printers are water soluble, so
they won't work. However, high quality laser printers are even better
than photocopiers. They deposit a great slathering of toner for the
PNP Blue and that is just what you want.
I use overhead transparency film and iron my images on. It's getting
harder now, because the film quality has changed over the years along
with the technology, but it is still out there and it still works. A
feature of the overhead transparency film is that it is cheap and it
doesn't mind getting heated up in the photocopier. I have an ancient
Canon 710PC, which is still the main photocopier for Metalwerx. It is
a sturdy machine! However, when I am doing photoetching, I make sure
that I purchase the more expensive toner for the printer and not the
cheap recycled stuff. I save my toner cartridge for just that purpose
and use the cheaper one for photocopies.
Good luck and happy etching!
M E T A L W E R X
School for Jewelry and the Metalarts
50 Guinan St.
Waltham, MA 02451
781 891 3854