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Subject: Re: [Homebrew_PCBs] Re: Standard inkjet inks for etch resist?(yeeeehaaa))

From: Stefan Trethan <stefan_trethan@...>
Date: 2004-03-13

Hi mebo...

It is good to hear that you have done some more experimenting...

I really NEED to know if it works soon, i could get this stylus color 600
with probably only a mech. problem for free, but i must fetch it there
which is no little effort (It is located on the ... of the world).

I think the layer of ink is not consistent, i think there will be a "grid"
of droplets and open space between. I like to be prooved wrong in this
case ;-).


I am not much interested in a two component approach, i think
it will then get to the same effort level as TT which works properly
already.


Please try to etch a board, or try to look with a magnifier or microscope
on the
ink layer. if it is a closed layer it should after all be possible to find
a ink that
is working. even if the layer is too thin we might just print multiple
times.

I just have this image of a lot of little droplets with a lot of surface
tension in my head.
(I tried to print on a uncoated ohp transparency and it looked like that...
of course then i used the wrong ink and copper is different but still...)


I have wasted time, and money, with that damn bubblejet, in the end
getting nothing
of any use at all... I am somewhat reluctant to repeat this. However the
problem
i have had does not occur with your printer obviously, and it might work.
On the other hand the next unsolveable problem may just be a few steps
ahead....



ST