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Subject: Re: [Homebrew_PCBs] Re: recommended thickness for boards

From: DJ Delorie <dj@...>
Date: 2009-04-23

"roycepipkins" <royce.pipkins@...> writes:

> When you do four layers, how do you connect to the internal layers?

You pre-drill the outer layers bigger before stacking them, so you can
solder the inner layers with an iron.