Homebrew PCBs

> -----Message d'origine-----
> De : Homebrew_PCBs@yahoogroups.com 
> [mailto:Homebrew_PCBs@yahoogroups.com] De la part de Robert Hedan
> Envoyé : juin 13 2006 14:31
> À : Homebrew_PCBs@yahoogroups.com
> Objet : [Homebrew_PCBs] Re: Note to Pulsar paper users
> 
> 
> 
> Yup, confirmed.
> 
> bla bla bla
> 
> Robert
> :(


I got an answer from Frank over at Pulsar, a very thorough and helpful
reply.  The old white paper was dimensionally unstable.  This problem is not
apparent when using through-hole, but it becomes a serious issue when using
FPGA.

I had a suspicion that this was the reason 'cause I had noticed an aligment
problem when I printed a 40-pin header a while ago.  I got around that
problem by sticking to PCBs no larger than 6" and using multiple headers,
but I can see how some users could have been frustrated.

Frank gave me an idea to save on paper;  print on ordinary paper first, cut
out a window and then scotch tape the new paper inside the opening.  I'm not
sure how that will go through the fuser though, scotch tape melts.  I'll
have to get shipping labels at Staples and give it a try.

Is the fuser on a HP LJ 2100 single sided?  I would assume it is placed on
the toner side of the paper for maximum efficiency since this printer does
not have a double-sided feature.  That would mean I could place scotch tape
on the back side without danger, but I'd prefer if one of you guys would
test the theory and scrap his printer instead of me.  :D

Frank says the new paper should not affect the performance of the greenTRF.
I redid the 2 boards that crapped out and they both came out nicely, so I
don't know what went wrong there.

Robert
:)