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Subject: Re: [Homebrew_PCBs] Re: vacuum hold-down for exposure box

From: DJ Delorie <dj@...>
Date: 2009-03-23

Simao Cardoso <simaocardoso@...> writes:

> Hi, i can't really see a point in using vacuum in two rigid flat
> surfaces.

I've found that they're not quite "flat" enough.