Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan 
<stefan_trethan@g...> wrote:
> HP LJIIID and ALL the error comes from it (rough edge).
> The added error of the transfer is much lower than the bad quality 
of the 
> printout.
> It seems to be the opposite, things get smoothed out a bit and the 
> "sprinkled toner"
> (small particles strewn around) are not transferred.
> 
> I have HUGE problems with thick traces, pinholes everywhere.
> Need another printer.
> 
> ST

I found in the few TT  boards I have ever made, was that the dusting 
all over the board were undercut by the acid so fast that they never 
posed a problem.

Also, that in melting the toner, it covered better in some areas.

I too had a problem with getting really dark black areas in large 
sections.  I am not sure if it has to do with the laser model being 
old, or if it has more to do with the electrostatic exhanges in an 
area of the toner.

for large areas, I always went back with a marker and filled in the 
holes.

Dave







> 
> On Sun, 02 May 2004 01:03:34 -0000, ballendo <ballendo@y...> wrote:
> 
> > Stefan,
> >
> > Which printer/toner did you use? Which etchant?
> >
> > Thank you in advance,
> >
> > Ballendo
> >
> > --- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan
> > <stefan_trethan@g...> wrote:
> >> i have some 7 mil with toner transfer on inkjet paper (much 
lower $
> > than
> >> pnp)
> >>
> >> <http://stud4.tuwien.ac.at/~e0225977/pcb.jpg>
> >>
> >> good luck
> >>
> >> ST
> >
> >
> >
> >
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files:
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> >
> >
> >
> >
> >