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Re: Photo-etch PCB made with HP 5P

2004-05-28 by leon_heller

--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan 
<stefan_trethan@g...> wrote:
> On Fri, 28 May 2004 11:58:39 -0000, leon_heller <leon_heller@h...> 
> wrote:
> 
> > I've just uploaded a pic of my latest efforts using an HP 
LaserJet 5P
> > to produce photo-etch artwork on tracing paper:
> >
> > Photos>Leon's>Photo-etch PCB made with HP 5P
> >
> > PCB material is Fotoboard (fibreglass/paper laminate) and the 
board
> > was etched in hot FeCl3 with continuous agitation. It took about 5
> > minutes. Tracks are conservative - 12 mils.
> >
> > I'll be tryimng that lead-free solder I mentioned on this board 
when
> > I assemble it. It's actually a simple PIC ISP programmer (PARPIC)
> > driven from the PC printer port.
> >
> > Leon
> 
> 
> Nice...
> 
> you might consider making tha pads bigger, it will be hard to 
drill/solder 
> them.
> It might also be that just the hole is too big so it looks a bit 
odd..
> 
> anyway, looks like you could still go down with track with with 
this 
> method easily.

Yes, they should be bigger. That's the standard size I use with 
commercial PTH boards (60/31.5 mil). I could have put teardrops on 
them which would help, but I forgot.

Leon

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