Fair 'nuff. Flank speed ahead ('cross that sea ...).
On Fri, Feb 21, 2014 at 2:51 PM, Crusty OMO <[email protected]> wrote:
> Hi Paul,
>
> I agree with maximizing the "sea of pth". My intent is to fit the buffer
> chips in place of the existing S-100 Terminations, with the top row of the
> chips aligning with the bottom row of the current Sea. The worse case, may
> be to loose just one bottom row.
> Ahh, I like your idea of recovering the regulator space. What I will
> try doing is add more holes there and run traces around the outter edge.
> The 5V regulator is a must keep, obviously.
>
> Let me see what I can conjur up...
>
>
> Regards,
> Josh
>
>
> ------------------------------
> Date: Fri, 21 Feb 2014 02:12:20 -0500
> Subject: Re: [N8VEM-S100:2448] Re: Board Run: Unbuffered Prototyping
> From: [email protected]
> To: [email protected]
>
> Although those all sound like interesting enhancements, the result is a
> bit different than an "unbuffered" prototyping board. I'm really
> interested in retaining the maximum amount of uncommitted sea-of-PTH and
> minimum commitment to additional circuitry. Ideally that would include
> reducing the current commitment to three voltage regulators. Perhaps one
> or more could be jettisoned?
>
> It's, of course, your design. So I'm "holding tight" until seeing how
> much real estate gets chewed up by your additions/modifications :->.
>
> I don't s'pose that your potential supplier would accept two designs to
> split the 100-count?
>
>
> On Thu, Feb 20, 2014 at 9:54 PM, Crusty OMO <[email protected]> wrote:
>
> Group,
>
> Besides wanting to add the buffer chips in a low profile out of the way
> fashion, I was also thinking to make a few other small changes. Presented
> here for your approval.
>
> -Add some power on LED's to top of board.
> -Add a DB-9 foot print over top the .1" matrix of holes, if the space is
> needed for a chip, it can be placed over top the DB-9.
> -Add the buffer chips, but keep them as close as possible to the edge card
> connector, thus allowing maximum space for prototyping.
> -Redo the silkscreen so there are lines in a grid of 10 by 10 holes
> (presently, I think it's 20 by 20)
>
> I'm not sure if KiCad can be switched to a manual mode to allow such
> overlapped pattern of components/holes. Time to learn.
>
> Regards,
> Josh
>
>
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