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Subject: Re: [Homebrew_PCBs] Re: PCB drilling vacuum table ??

From: Bruce Parham <obparham@...>
Date: 2011-02-15

Boman33 wrote:
> Note, commercial PCB drilling is not done with vacuum tables. Often
> multiple layers of boards are stacked and pinned to the table. The drill
> head basically has a spring-loaded ring that presses down on the PCBs while
> drilling.
>
> Bertho
>
And they typically use a 20-30 mil sheet of aluminum , under the stack.

Bruce