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I may have to look at AllPCB or someplace that offers electrical
testing. Do they need anything from me for that? Like vectors or
anything? One would think the board is self-explanatory and it
passed DRC and ERC. As mentioned, these boards are not at any limits
or exotic. It's a clear failure of the process. If I get a chance
this weekend I will take some photos. I did post the OSHPark
failure online somewhere but no idea where that was.<br>
<br>
I want to mention that with both fabs I had very many boards that
were fine from these and other runs. It's just the odd PCB that
happens maybe once a year but I never think to look so I never
notice until I stuff and test, then, crap.<br>
<br>
<br>
<div class="moz-cite-prefix">On 7/27/2018 11:05 AM, Vladimir
Pantelic wrote:<br>
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<div dir="auto">in about three dozen orders from PCWAY and ALLPCB
I never had a bad board except one where the stop mask had a
blemish...</div>
<br>
<div class="gmail_quote">
<div dir="ltr">On Fri, Jul 27, 2018, 20:02 David G Dixon <<a
href="mailto:dixon@mail.ubc.ca" moz-do-not-send="true">dixon@mail.ubc.ca</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Hmm.
Interestink.<br>
<br>
I always thought that professionally made boards were always
"perfect" and I<br>
only had to worry about my own janky-ass boards. However, I
always<br>
thoroughly inspect my own boards for visual faults, test
anything that looks<br>
remotely suspect, and tin any traces that look at all raggedy.<br>
<br>
> -----Original Message-----<br>
> From: Synth-diy [mailto:<a
href="mailto:synth-diy-bounces@synth-diy.org"
target="_blank" rel="noreferrer" moz-do-not-send="true">synth-diy-bounces@synth-diy.org</a>]
On <br>
> Behalf Of MTG<br>
> Sent: Friday, July 27, 2018 10:49 AM<br>
> To: <a href="mailto:synth-diy@synth-diy.org"
target="_blank" rel="noreferrer" moz-do-not-send="true">synth-diy@synth-diy.org</a><br>
> Subject: [sdiy] Today's Pet Peeve: PCBs<br>
> <br>
> So my pet peeve is different. While soldering up some <br>
> prototype boards received from DirtyPCBs (Wherelabs) I
found <br>
> one copy of board A that had two feedthroughs shorted and
one <br>
> copy of board B that had traces with gaps in them
(missing <br>
> copper). Same thing happened before on boards from
OshPark. <br>
> I wish I'd noticed before I soldered the parts on! I
guess I <br>
> need to super inspect each board. The gaps aren't really
that <br>
> hard to see, but the feedthroughs I needed to buzz out to
find. <br>
> Fortunately that one was fixable. The missing copper one
is <br>
> quite a few traces and not sure it's worth the time to
rework it.<br>
> <br>
> So, any sage advice? Is PCB testing worth it? Or is the
cost <br>
> of a couple of bad boards less painful.<br>
> <br>
> <br>
> <br>
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