If it were efficient, why isn't the industry using it?
It takes ages compared to etching.
About laser milling, yes, it's done these days. check with google. they
see the reflection change when the copper is gone i think.
Would be fantastic to have such a machine, but if i could afford one i'd
have people doing PCBs for me not the other way around.
I suspect EDM is the closest we could get for a while, but i have no time
at all to look into that this year.
(About the drivers, i'll finish a job this weekend and then i'm all yours,
thanks)
ST
On Fri, 09 Dec 2005 00:05:22 +0100, lcdpublishing
<
lcdpublishing@...> wrote:
> I just thought of something else regarding efficiency. Even though I
>
> don't make a lot of circuit boards, I have been etching two, and
>
> even, three boards at the same time. This is very efficient and is
>
> only limitted by the size of the etching tank.
>
>
> Having been in shops of one type or another my entire adult life, I
>
> probably have been exposed to more toxins than I care to think
>
> about. So, fear of: acids, projectiles, and dust isn't an issue for
>
> me - been there done that sort of thing I guess. Frankly, I am much
>
> more fearful of the dumb girl in the car in front of me talking on
>
> the cell phone and not paying attention to driving ;-(
>
>
> A while ago I did read that article you mentioned, and you are
>
> right, they were not very positive at all about milling.
>
>
> Hmmm, makes me think of another possiblity though - laser etching?
>
> I know there are lasers that can focus their "cutting depth" which
>
> might allow for cutting through the copper and not the substrate. I
>
> would have to guess that this sort of laser would require a bit of
>
> power though.
>
>
> Chris
>