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

From: Stefan Trethan <stefan_trethan@...>
Date: 2009-03-23

If you do that you may as well stick to a sheet of foam rubber
pressing the stack up against the glass and dump the vacuum.

I sort of thought the whole purpose was to get a double-sided exposure machine.

ST

On Mon, Mar 23, 2009 at 4:13 AM, Piers Goodhew <piers@...> wrote:

>
> Then I thought, make the ∗bottom∗ vinyl and eveything is evenly
> pressed UP onto the glass with no stresses at all, and you still get
> that nice even glass.
>