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

[Olgierd Eysymontt <olgierd.eysymontt@xxxxxxxxxxx>]

Harry,
	The problem are not the DIP's but components like electrolytic
capacitors, relays, DIP sockets or others that cover the pins so it's
impossible to solder them in the up side. 

Thanks,

Olgierd

On Mon, 2005-07-25 at 21:49 -0400, harry eaton wrote:
> 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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