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From: "Chad Parker (parker DOT charles AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
Date: Sun, 15 Sep 2019 08:19:51 -0400
Message-ID: <CAJZxidDOSDVqR88aBjh7uzfqsN17r7_pCrD4ogZXX-8-bG=yVA@mail.gmail.com>
Subject: Re: [geda-user] blind vias, gerbers and gerbv
To: geda-user AT delorie DOT com
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Reply-To: geda-user AT delorie DOT com

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On Sat, Sep 14, 2019, 14:20 Bert Timmerman (bert DOT timmerman AT xs4all DOT nl) [via
geda-user AT delorie DOT com] <geda-user AT delorie DOT com> wrote:

>
> The gerber files for copper, soldermask, silkscreen and outline should
> not differ from a pcb with through hole vias.
>

This isn't *quite* true. There should only be copper pads in the Gerbers on
the layers that intersect with the layers of the blind/buried via.

I get the following drill files for connecting the copper layers with
> bbvias:
>
> test.plated-drill.cnc
> test.plated-drill_01-02.cnc
> test.plated-drill_03-06.cnc
>
> Can you try this and see if you get similar drill files ?
>

Based on your original message, this would be the first thing I'd check.
You should have a separate drill file for each layer pair associated with a
blind/buried via.

On each copper layer the via goes through, there should be a copper "pad",
just like with normal vias. But only on those layers.

--Chad

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<div dir=3D"auto"><div><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D=
"gmail_attr">On Sat, Sep 14, 2019, 14:20 Bert Timmerman (<a href=3D"mailto:=
bert DOT timmerman AT xs4all DOT nl" target=3D"_blank" rel=3D"noreferrer">bert.timmerm=
an AT xs4all DOT nl</a>) [via <a href=3D"mailto:geda-user AT delorie DOT com" target=3D"_=
blank" rel=3D"noreferrer">geda-user AT delorie DOT com</a>] &lt;<a href=3D"mailto:=
geda-user AT delorie DOT com" target=3D"_blank" rel=3D"noreferrer">geda-user AT delor=
ie.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"m=
argin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
The gerber files for copper, soldermask, silkscreen and outline should <br>
not differ from a pcb with through hole vias.<br></blockquote></div></div><=
div dir=3D"auto"><br></div><div dir=3D"auto">This isn&#39;t *quite* true. T=
here should only be copper pads in the Gerbers on the layers that intersect=
 with the layers of the blind/buried via.=C2=A0</div><div dir=3D"auto"><br>=
</div><div dir=3D"auto"><div class=3D"gmail_quote"><blockquote class=3D"gma=
il_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-lef=
t:1ex">
I get the following drill files for connecting the copper layers with <br>
bbvias:<br>
<br>
test.plated-drill.cnc<br>
test.plated-drill_01-02.cnc<br>
test.plated-drill_03-06.cnc<br>
<br>
Can you try this and see if you get similar drill files ?<br></blockquote><=
/div></div><div dir=3D"auto">=C2=A0</div><div dir=3D"auto">Based on your or=
iginal message, this would be the first thing I&#39;d check. You should hav=
e a separate drill file for each layer pair associated with a blind/buried =
via.</div><div dir=3D"auto"><br></div><div dir=3D"auto">On each copper laye=
r the via goes through, there should be a copper &quot;pad&quot;, just like=
 with normal vias. But only on those layers.</div><div dir=3D"auto"><br></d=
iv><div dir=3D"auto">--Chad</div><div dir=3D"auto"><br></div><div dir=3D"au=
to"><div class=3D"gmail_quote"><blockquote class=3D"gmail_quote" style=3D"m=
argin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"></blockquote>=
</div></div></div>

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