Homebrew PCBs

Actually, the one I saw was the small hole saw version - there was an
island of copper left around the hole, and then a cut out ring around that.
I guess either method would work, but interesting to see the tool that does
that.

I've also not seen anyone mention wirewrap in this thread. That's another
alternative - just get coperless predrilled board, and use wirewrap. I've
actually done a couple projects with wirewrap, and I was using a completely
manual wrapping tool (looks like a jewelr's screwdriver), and it was pretty
good. With a wrapping gun (which i have now), it would be even faster, but
haven't built anything complicated enough to warrant wirewrapping in a
while now. I also have a commercial Sony radio from the 70's that's
wirewrapped, and soldered. Guess at that time, manual labor was more
economical than PCB manufacturing.


On Mon, Dec 31, 2012 at 2:26 PM, Pict <pict@....uk> wrote:

> **
>
>
>
>
> On 31/12/2012 22:56, "Andrew Hakman" <andrew.hakman@...> wrote:
>
> >>There used to be a small tool that was used to create an island around
> >>a drill hole. it was effectively a micro sized hole saw. The
> >>technique was to drill holes in copper clad where you wanted them,
> >>isolate this hole with the tool (as needed) and then bridge from
> >>island to island with the parts.
> >
> >I've seen boards built with this. Usually the pre-drilled proto board, but
> >with copper tracks that run from one edge to the other, and you separate
> >the rows into smaller sections with the little hole saw, but I've never
> >seen the tool. Have any info on it?
>
> I think you are thinking of Veroboard and a tool like this to break the
> tracksŠ
> http://www.ebay.com/itm/300816579317
>
> A small drill bit works almost as well. This tool does not create an
> island of copper, it clears the copper strip away around the hole and
> breaks the strip into two sections.
>
> Regards,
> John
>
>  
>


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