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Subject: Re: inkjet second side alignment (was: homebrew CNC)

From: "lcdpublishing" <lcdpublishing@...>
Date: 2006-04-16

Well, not really. Right now you cut the PCB material to size then
transfer & etch.

Rather, you have your "leading" or "reference" edge cut straight and
you mark the center point on that edge. You then print one side,
flip, print opposite side. Now the artwork is square to that same
edge and aligned from face to face.

Etch the board, then trim the rest to size.

I believe that will work out okay.






--- In Homebrew_PCBs@yahoogroups.com, Robert Hedan
<robert.hedan@...> wrote:
>
> Being able to flip a PCB over and print the other side properly
requires a
> perfectly 'square' PCB. A lot of us cut pieces from larger pieces
of PCB,
> we'd have to stop that practice.
>
> Robert
> :)
>
>
>
> -----Message d'origine-----
> De : Homebrew_PCBs@yahoogroups.com
[mailto:Homebrew_PCBs@yahoogroups.com] De
> la part de Stefan Trethan
> Envoyé : avril 16 2006 05:55
> À : Homebrew_PCBs@yahoogroups.com
> Objet : Re: [Homebrew_PCBs] inkjet second side alignment (was:
homebrew CNC)
>
>
> ...
>
> Now if you align the PCB against the edge guide, and align the
mark with
> the center mark on the table, you can print the bottom side. Then
you turn
> the PCB over, and again align it against the edge guide, and the
center
> mark as well, and you have it positioned in the exactly same place
only
> turned over. Then you simply mirror the top layer artwork and
print it out.
>
>
> ...
>
> ST
>