Homebrew PCBs

You may be thinking of the New Jersey Islander (NJQRP) 
<http://www.njqrp.org/islanderpadcutter/index.html> that used a small 
diamond hole saw.
Similar hole saws are available from Harbor Freight, but watch for half 
price sales.
I just tried the 'brad point' wood working bits also from harbor freight 
- low cost and good results.
The brad point bit does not walk the way the hole saw did.  I can even 
work without
clamping the board to the drill press.

As a bonus the brad point bits cut perfect holes in the thinest sheet metal.

John
WA8KNE


George Lawrence Storm wrote:
> A long time ago I once had a specialty bit which was used to create a 
> "donut" pad on a copper clad board, it had a pilot/drill and two 
> spurs which cut the pad.
>
> I forgot what it is called, can anyone identify it and where I can 
> obtain them (preferably in a few sizes)?
>
> -----
>
> I also am looking for a prototyping board for a MLF-56 (QLN-56) 
> package. I need a quick and dirty prototype and don't want to design 
> and etch a board until I know more about the part.
>
> My problem is that it has the ground pad underneath and I have not 
> been able to find an adaptor which has that feature, has anyone made 
> any for their own use and who might want to sell an extra or two?
>
> Specifically I will be working with a Cypress CY8C24794 chip.
>
>
> Thanks,
>
> -  George
>
> -----
>
> George Lawrence Storm
> Macintosh Applications Development
> Edmonds (Seattle), Washington
> E-mail: <keencoyote@...>
>
>
>
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>
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