I dont think there is room for a wider pad in the first picture.
when you have a 12 mil trace between pads, you can clearly see that
there isn't much room left, maybe a couple of mils.
Also, the reason I dont go straight into some of the pads is because
I try to seperate parallel traces as much as possible to minimize
bridging from blooming. This might be unnecessary now that my TT
technique is much improved but old habits are hard to kick.
As for lifting traces, I'm not too worried about it. If I've drilled
the right size hole and am careful with the heat, it isn't a
problem. Though I never have to rework my boards ... :)
--- In
Homebrew_PCBs@yahoogroups.com, Stefan Trethan
<stefan_trethan@g...> wrote:
> On Fri, 26 Mar 2004 17:54:39 -0000, Phil <phil1960us@y...> wrote:
>
> > --- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan
> > <stefan_trethan@g...> wrote:
> >> On Fri, 26 Mar 2004 16:32:03 -0000, Phil <phil1960us@y...> wrote:
> >>
> >>
> >> Pads designed for throughhole plated boards just are not to be
used
> > in not
> >> plated
> >> boards. it is simple math, the area is too small.
> >>
> >
> > hmmm, guess those last couple of boards I did shouldn't have
worked.
>
> well, if you say the pads are OK we simply disagree:
> http://www.geocities.com/phil1960us/pcb/bd2-2.jpg
>
> however these here:
> http://www.geocities.com/phil1960us/pcb/bd1-2.jpg
>
> are more what i like...
>
> I have no problem with disagreeing with you, but in the first
picture
> the remaining ring is thinner than the track itself. that simply
can't be
> good and
> i do not think a decent soldering joint will result from it.
>
> I had similar pads to the ones you have there, years ago, until i
made
> them bigger
> and the overall quality did go up dramatically.
>
> You can make a working circuit by just ending the track straight,
and
> drilling a hole
> at the end. then you simply "glue" the part to the track. if you
like it,
> well...
>
> However i do not recommend it for a beginner already having
problems with
> hitting the center
> of the pad.
>
> It would not at all be a problem to make bigger pads on the
pictures you
> have there, but
> hey, i do not want to tell you what to do... if you like it then
stay with
> it.
>
> I just want to help..
>
> Only keep in mind the difference when you have throughhole plating,
it is
> riveted
> together, which it isn't with our boards.
>
> ST