gEDA-user: home-made 4 layer board idea
John Griessen
john_g at cibolo.com
Tue Oct 3 21:07:53 EDT 2006
DJ Delorie wrote:
> The biggest problem with home-made boards is the vias, right? What if
> you drilled the outer panels with larger holes, so that you could
> solder to the inner layers?
Sounds reasonable when you allow for extra area, which is also reasonable for a
start on a product with low volume, and afford a re-layout later.
You wouldn't even need copper on the
> unused outer layer, you could just drill it out.
What do you mean by that above? What unused?
> ----------========== || ==========----------
> ---------------===== || =====---------------
> | || |
> ---------------===== || =====---------------
> ----------========== || ==========----------
>
This char picture I am confused by -- the outside holes are not larger....
> ----------===== --\\ =====----------
> ----------========== || ==========----------
> | || |
> ---------------===== || =====---------------
> ----------========== || ==========----------
> \\-----
>
The top half of this I see as larger holes
and a wire put through for connectivity.
Right?
John G
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