X-Authentication-Warning:	delorie.com: mail set sender to geda-user-bounces using -f
X-Recipient:	geda-user AT delorie DOT com
Subject:	Re: [geda-user] DIY PCBs
To:	geda-user AT delorie DOT com
References:	<20170617081144 DOT 16928 DOT qmail AT rahul DOT net>
From:	"John Griessen (john AT ecosensory DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
Message-ID:	<efa75d25-7cfd-49a8-cec5-7522a80ee010@ecosensory.com>
Date:	Sat, 17 Jun 2017 16:38:47 -0500
User-Agent:	Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101
	Thunderbird/45.8.0
MIME-Version:	1.0
In-Reply-To:	<20170617081144.16928.qmail@rahul.net>
Reply-To:	geda-user AT delorie DOT com
Errors-To:	nobody AT delorie DOT com
X-Mailing-List:	geda-user AT delorie DOT com
X-Unsubscribes-To:	listserv AT delorie DOT com

On 06/17/2017 03:11 AM, John Conover wrote:
> I made a web page for the way I make DIY quick turn PCBs, consistently
> with 10 mil line widths, in under 30 minutes. It is specific to
> geda(1), gschem(1), and, pcb(1), (it is doubtful that any other system
> would work very well-but there is a lot of information there on how to
> do it, if one wants to.)
>
> Most of my work is in linear/analog, so its kind of tailored that way.
>
> http://www.johncon.com/john/PCB/

Thanks, I do similar, although I never thought of the developer testing,
only exposure -- that makes for a nice sweet spot determination.

I also use air regeneration of the CuCl2, which might even reduce the amount of HCl needed,
but that's not a very big cost anyway.  It does skip the need for any H2O2 buying
except to get started quickly.   Air bubbling of copper wire under HCl will get you
a charged up  CuCl2 bath eventually.  DJ Delorie gets credit for the CuCl2 chemistry
efficiency details.

- Raw text -