Re: gEDA-user: bottom side pad only in PCB

["harry eaton" <bumpelo@xxxxxxxxxxx>]

If you make a double-sided board that's not plated through, simply solder
the pins on both sides. You will have to use Z-wires for each via too.

h.

----- Original Message -----
From: "Olgierd Eysymontt" <olgierd.eysymontt@xxxxxxxxxxx>
To: <geda-user@xxxxxxxx>
Sent: Monday, July 25, 2005 2:35 PM
Subject: Re: gEDA-user: bottom side pad only in PCB


> Yes Harry, that's what I do, but sometimes it's not possible to route on
> only one side, so I make double sided boards, and in that cases, I have
> to route by hand the upper side (bacause PCB will try to attach to the
> pins thinking I have Plated Trough Holes), anyway it's not a big job as
> PCB do the most on the solder side, but would be nice that PCB could do
> the full job as the toner transfer method is really cheap, fast and
> good, I make traces of 10 mils without problems and take no more that
> 1-2 hours to have a small board ready (even drilled), so I use it a lot.
>
> Thanks
>
> Olgierd
>
>
>
> On Mon, 2005-07-25 at 18:23 -0400, harry eaton wrote:
> > The auto router only routes on visible layers. Simply turn off
visibility of
> > all but the solder layer
> > before running the auto-router, and it will only route on the solder
layer.
> >
> > h.
> >
> >
> > ----- Original Message -----
> > From: "Olgierd Eysymontt" <olgierd.eysymontt@xxxxxxxxxxx>
> > To: <geda-user@xxxxxxxx>
> > Sent: Monday, July 25, 2005 7:25 AM
> > Subject: Re: gEDA-user: bottom side pad only in PCB
> >
> >
> > > Another case of the no component side pad is when you make boards at
> > > home (with the toner transfer method for example) and don't have PTH,
> > > like most components can't be soldered on top, you have to route the
> > > component side by hand while the solder side is done automatically by
> > > PCB. If there would be an option to avoid the auto router to connect
to
> > > the pins in the component layer it would be great and unique.
> > >
> > > Thanks for such a good software,
> > >
> > > Olgierd
> > > http://www.tea-tec.cl
> > >
> > > On Sun, 2005-07-24 at 23:47 -0400, Dan McMahill wrote:
> > > > Thanks harry!  Both of these suggestions should work fine.
> > > >
> > > > -Dan
> > > >
> > > > harry eaton wrote:
> > > > > Dan,
> > > > >
> > > > > Let's start by assuming you can tolerate a tiny annular ring on
the
> > top
> > > > > side. If so, then make the pins have a miniscule annular ring and
> > place SMD
> > > > > pads over them on the back side; use identical pin numbers for the
> > pads and
> > > > > pins that are coincident.
> > > > >
> > > > > If you can't tolerate plated holes, then simply make SMD pads on
the
> > back
> > > > > side and make pure "mounting" holes for the pins to feed through.
> > > > >
> > > > > Either of these is fully supported with the current pcb code.
> > Eventually we
> > > > > could have the pin annular ring have per-layer size.
> > > > >
> > > > > h.
> > > > >
> > > > > ----- Original Message -----
> > > > > From: "Dan McMahill" <dan@xxxxxxxxxxxx>
> > > > > To: <geda-user@xxxxxxxx>
> > > > > Sent: Sunday, July 24, 2005 10:17 PM
> > > > > Subject: gEDA-user: bottom side pad only in PCB
> > > > >
> > > > >
> > > > >
> > > > >>anyone ever have to deal with a part which is leaded but only
wants a
> > > > >>solderside pad in PCB?  I think it just doesn't do it currently.
> > Anyone
> > > > >>have a workaround until I can get time to fix this?
> > > > >>
> > > > >>Thanks
> > > > >>-Dan
> > > > >>
> > > > >>p.s.  Think metal package parts...
> > > >
> > >
> > >
> > >
> > > --
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> > >
> >
>
>
>
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