Homebrew_PCBs

--- 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