[TriEmbed] TriEmbed Digest, Vol 87, Issue 19

Chip McClelland chip at mcclellands.org
Fri Aug 21 14:17:33 CDT 2020


Pete,

As you know, I am a big fan of MacroFab.  I have used them about a dozen
times from quantities of ~5 to 100.  They have an excellent automated
ordering process and they give a number of options to play fulfillment time
against volume.  They can even do product assembly and test.

Chip



____________________________________
Chip McClelland
chip at mcclellands.org
919-624-5562

On August 21, 2020 at 12:14:01 PM, triembed-request at triembed.org (
triembed-request at triembed.org) wrote:

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Today's Topics:

1. Circuithub, Macrofab & other quick turn assemblers (Pete Soper)
2. off topic: DNS smarts in web browsers (Pete Soper)
3. Re: Circuithub, Macrofab & other quick turn assemblers
(Kevin Schilf)
4. Re: Circuithub, Macrofab & other quick turn assemblers
(Pete Soper)


----------------------------------------------------------------------

Message: 1
Date: Fri, 21 Aug 2020 08:48:24 -0400
From: Pete Soper <pete at soper.us>
To: TriEmbed at triembed.org
Subject: [TriEmbed] Circuithub, Macrofab & other quick turn assemblers
Message-ID:
<mailman.25.1598026431.3770262.triembed_triembed.org at triembed.org>
Content-Type: text/plain; charset="utf-8"

I'm shopping for a supplier to assemble smalll quantities of PCBs (eg Q3-10
of 21 kinds of board in one case). The two in the subject line are on my
list but I wonder if anybody can add to it? I need something akin to OSH
Park/OSH Stencils: zero human comms if I haven't screwed something up or
gotten a surprise and ideally a week to three at most from upload to
assembled boards in hand. If/when the project progresses there will be
special requirements and that's when I would approach Better Boards or the
like, so shops like that are not what I'm looking for now.Thanks,Pete
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Message: 2
Date: Fri, 21 Aug 2020 09:10:53 -0400
From: Pete Soper <pete at soper.us>
To: Triangle Embedded Interest Group <triembed at triembed.org>
Subject: [TriEmbed] off topic: DNS smarts in web browsers
Message-ID: <92300824-b798-27b8-65a4-e4eff2c2de17 at soper.us>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

For those interested in DNS smarts in web browsers this may be of
interest:
https://blog.apnic.net/2020/08/21/chromiums-impact-on-root-dns-traffic/

One pleasant surprise I got was learning that Microsoft Edge is built on
OSS Chromium. Together with Visual Basic Code having an MIT license I
might some day change my attitude toward this corporation. Their
engineers are of course fantastic (interacted with them a bit when MS
and Sun couldn't play nice with Java), but maybe the corporation is
changing it's stripes? Anyway,? onward.

-Pete


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Message: 3
Date: Fri, 21 Aug 2020 15:22:16 +0000 (UTC)
From: Kevin Schilf <kschilf at yahoo.com>
To: "triembed at triembed.org" <triembed at triembed.org>, Pete Soper
<pete at soper.us>
Subject: Re: [TriEmbed] Circuithub, Macrofab & other quick turn
assemblers
Message-ID: <173545790.5561604.1598023336664 at mail.yahoo.com>
Content-Type: text/plain; charset="utf-8"

Hi Pete,
Please share any vendors that are cost effective at 3-10 units.? I am also
interested in any feedback the group has on toaster oven conversions or
inexpensive turnkey reflow ovens (< $500).? It would be handy to have an
immediate prototype capability in-house.

I can recommend C-Tron (Franklin) and GRT (Raleigh) for SMT assembly but
the quantities involved were 100's at a time?? In both cases, the service
was cost effective and high quality.? I don't know if this would be cost
effective at such small volumes.? Volume is King.? :-)

Thanks,Kevin

On Friday, August 21, 2020, 8:48:32 AM EDT, Pete Soper via TriEmbed <
triembed at triembed.org> wrote:

I'm shopping for a supplier to assemble smalll quantities of PCBs (eg Q3-10
of 21 kinds of board in one case). The two in the subject line are on my
list but I wonder if anybody can add to it? I need something akin to OSH
Park/OSH Stencils: zero human comms if I haven't screwed something up or
gotten a surprise and ideally a week to three at most from upload to
assembled boards in hand. If/when the project progresses there will be
special requirements and that's when I would approach Better Boards or the
like, so shops like that are not what I'm looking for now.
Thanks,Pete_______________________________________________
Triangle, NC Embedded Computing mailing list

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Message: 4
Date: Fri, 21 Aug 2020 12:13:50 -0400
From: Pete Soper <pete at soper.us>
To: Kevin Schilf <kschilf at yahoo.com>
Cc: "triembed at triembed.org" <triembed at triembed.org>
Subject: Re: [TriEmbed] Circuithub, Macrofab & other quick turn
assemblers
Message-ID: <2de24cc6-ae27-51d9-8bac-e198a6279556 at soper.us>
Content-Type: text/plain; charset="utf-8"; Format="flowed"

Thanks very much, Kevin. I'll share something about my reflow setup that
I built for roughly $300 (but it involved a lucky find of a good hood
from some RTP lab, a wood stove flu and a really good radial fan I just
happened to have). I'm still using the original Controleo
<https://www.whizoo.com/> board (and my oven looks almost exactly like
the one on their web site: love that race car IR reflective stuff!).
After poo-pooing the drawbacks of the original version my project to
make a much better controller has been sitting unfinished for a very,
very long time. That tells you how satisfied I am, although if you need
to change profiles in a hurry we must hope their firmware is much
smarter these days. But I'm confident their current product is really
good. The industry experience they brought into their biz was solid:
they were not only enthusiasts (the archaic term that comes to mind is
"righteous dudes"). More on my setup when I have some time.

On a related note, I just posted something to do with absorbed moisture
in ICs <http://triembed.org/blog/keeping-your-powderhhhhhh-ics-dry/>on
the TriEmbed web site.

/*TriEmbed folks that have been "vetted" are welcome to get logins on
the site and add their own content. It's a vanilla Wordpress environment
and there is a "role" set up to provide different levels of privilege,
etc.? One non-negotiable requirement is a password that can outlast an
epoch of breakin attempts. Wordpress sites are subjected to nearly
continuous attacks. The site is what we make it to be. I am
uncomfortable having disproportionately created content for seven years
and would very much like to become a bit player in the stats in the
future, and not just because my day job and other circumstances are
"blotting out the sun". *//*("Vetting" is just to establish we know who
you are as part of the TriEmbed community, typically via meeting
attendance, but sometimes email correspondence, phone calls, etc)
*/

Just for instance, somebody could add a posting about the monthly
virtual meetings *iff* the Jitsi server is up to it. If it can't handle
more than the current number of attendees then it would be a bad idea
IMO. But there are various walled gardens wafting perfumed translations
of "free" from all directions...

-Pete


On 8/21/20 11:22 AM, Kevin Schilf wrote:
> Hi Pete,
>
> Please share any vendors that are cost effective at 3-10 units.? I am
> also interested in any feedback the group has on toaster oven
> conversions or inexpensive turnkey reflow ovens (< $500).? It would be
> handy to have an immediate prototype capability in-house.
>
> I can recommend C-Tron (Franklin) and GRT (Raleigh) for SMT assembly
> but the quantities involved were 100's at a time?? In both cases, the
> service was cost effective and high quality.? I don't know if this
> would be cost effective at such small volumes.? Volume is King.? :-)
>
> Thanks,
> Kevin
>
> On Friday, August 21, 2020, 8:48:32 AM EDT, Pete Soper via TriEmbed
> <triembed at triembed.org> wrote:
>
>
> I'm shopping for a supplier to assemble smalll quantities of PCBs (eg
> Q3-10 of 21 kinds of board in one case). The two in the subject line
> are on my list but I wonder if anybody can add to it? I need something
> akin to OSH Park/OSH Stencils: zero human comms if I haven't screwed
> something up or gotten a surprise and ideally a week to three at most
> from upload to assembled boards in hand. If/when the project
> progresses there will be special requirements and that's when I would
> approach Better Boards or the like, so shops like that are not what
> I'm looking for now.
>
> Thanks,
> Pete
> _______________________________________________
> Triangle, NC Embedded Computing mailing list
>
> To post message: TriEmbed at triembed.org <mailto:TriEmbed at triembed.org>
> List info: http://mail.triembed.org/mailman/listinfo/triembed_triembed.org
> TriEmbed web site: http://TriEmbed.org
> To unsubscribe, click link and send a blank message:
> mailto:unsubscribe-TriEmbed at bitser.net
> <mailto:unsubscribe-TriEmbed at bitser.net>?subject=unsubscribe
>
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End of TriEmbed Digest, Vol 87, Issue 19
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