Homebrew PCBs

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.
>