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Subject: Re: [Homebrew_PCBs] Isolation milling - what do the cutters look like to do it?

From: "Stefan Trethan" <stefan_trethan@...>
Date: 2006-07-26

On Wed, 26 Jul 2006 13:58:47 +0200, lcdpublishing
<lcdpublishing@...> wrote:

> Hi guys,
> Later this year (perhaps next year or whenever I get my machine done),
> I want to give isolation milling a try. At first I thought a small
> end mill would be the tool to use, but the more I thought about it, I
> suspect that is not the case. After thinking about it further, I
> believe it would make more sense to use a "pointed" tool shaped like
> a 'V' or something. Does anyone know of some sources for the tool bits
> that work good for isolation milling? Primarily, I would like to see
> some detailed photos or drawings as I would probably attempt to grind
> my own - seeing as Stefan got me thinking about that now ;-)
> Thanks
> Chris


There's some guy selling them on the web, homemade...

I don't remember the URL, but a google search for "pcb engravers lead
brick grinder" will turn it up (don't ask!).

ST