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Subject: Re: Center-drilling

From: "mikegw20" <mikegw20@...>
Date: 2005-11-10

--- In Homebrew_PCBs@yahoogroups.com, "Mike Young" <mikewhy@s...> wrote:
>
> Can I conclude, from the lack of choices for 1/8" shank center drills
or
> countersinks, that center drilling the itty-bitty PCB holes isn't
popular
> practice? Too dumb a question to bother answering?
>

When printing the board you can add a cenre hole by making the
component pad a donunt. The slight raise in the copper makes it
possible to centre the pcb drill when working without a drill press.
Without the donut is is very hard to keep the bit on track.

Mike