Homebrew PCBs

Hmmm, that's a good one; just one straight edge and a center alignment pin,
so simple.

Maybe that's what Stefan was explaining back there, but I'm a visual guy, I
got lost after the 1st sentence, I need pictures.  Yup, I just glanceed back
at Stefan'S post and that's exactly what he said.  It went totally over my
head.  :D

"On this table one would stick some strip of PCB, at  
the leading edge, against which the PCB in print is pushed. This strip  
would also have a mark in the exact center of the page width (or wherever  
the center line ends up in a mirrored print). This mark is important,  
because it allows you to align the other side."

I'd just use a very small hole placed alongside the bottom border, just big
enough for a short pin.

Robert
:)


-----Message d'origine-----
De : Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] De
la part de lcdpublishing
Envoyé : avril 16 2006 11:21
À : Homebrew_PCBs@yahoogroups.com
Objet : [Homebrew_PCBs] Re: inkjet second side alignment (was: homebrew CNC)


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.