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Subject: Re: [Homebrew_PCBs] bubbler - more even spread of bubbles

From: "Stefan Trethan" <stefan_trethan@...>
Date: 2005-03-08

On Mon, 7 Mar 2005 18:38:59 -0500, Earl T. Hackett, Jr.
<hacketet@...> wrote:

> Lots more smaller holes. I've been making 0.002" holes with a hot wire.


that's 0.05mm!!!! what wire did you use? how did you do that?

Think and tinker says larger bubbles are desireable, they use a special
hole pointed down 45 degree that allows a large bubble to assemble before
breaking off.

I'm not sure what is best, all i know is i have a uneven etch and i'd like
to change that.

st