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Subject: Re: [Homebrew_PCBs] EDM of PCB

From: Alan King <alan@...>
Date: 2006-05-09

>Think about precision drilling in complex boards.
>Using the inkjet printing you have to drill it manually unless you
>find a solution to position
>the resulted PCB under the CNC drill, which is, almost, impossible.
>
>
>

No harder than aligning to drill a toner transfer board after etching,
which isn't that difficult.. You just align to two holes on opposite
corners and you're done.

Why drill anyway? Surface mount your dips and everything else. I
have a driller, and still it's sit around unused for a long time. It's
simply better to advance how you lay out the boards to where you rarely
even need a hole, smt pads for dips are easy to lay out. You don't
actually have to have holes through most boards at all, things work just
fine with the dip leads not going through holes etc.

Alan