Scott,
Yes I use them also, recently got some samples from Mill-Max they are <
40 mil and can accept a standard IC leg .
I've been using "high" IC sockets for years and soldering top and
bottom. I also use the Harwin pins for Via's they are rather big
but very easy to use.
Through hole plated would be the best, but I know it's not possible
without a lot of chemicals and tanks and then the hassle of renewing
all.
hansw
Scott Hendershot wrote:
> Hans,
>
> I use very tiny metal grommets to connect the 2 sides of the board.
> They
> even leave room for mounting components through them if you get the
> right
> size
>
> Scott
>
> ----- Original Message -----
> From: <hans@...>
> To: <Homebrew_PCBs@yahoogroups.com>
> Sent: Thursday, April 25, 2002 7:40 PM
> Subject: Re: [Homebrew_PCBs] Re: Parser for RS-274X header.
>
>
> > John,
> > Thanks... I published the design for that very reason, I needed to
> > replace some crap electronics that came with the mill and turned to
> the
> > data sheets and did it from there... with 20/20 hind site I could
> re-do
> > it and improve many features.
> > I have no problem with simpler designs, they have a place, trouble
> is
> > people out grow them very quickly...:-)
> > A while back I sent out a questionnaire asking a bunch of people
> what
> > they were willing to pay for a "good" set of boards, by good, I mean
>
> > solder mask and silk screen. Eventually I got 100% replies and the
> > result was the average they were willing to pay was in the order of
> $10
> > per board...
> > Well I can make them for less, but I can't pack and ship and keep
> books
> > and pay taxes for a simple $2-5 per board, I find my time is worth a
> lot
> > more than that, so I published it free of charge.... It costs me to
> do
> > that, and I have at least 5 cries for help every week ( I reply to
> all
> > of them )... That's the reason I want to re-do the layout, perhaps
> the
> > e-mail's will be less...
> > Anyway, as I said when I get time I will re-do the layout, PIA the
> PCB
> > layout program I used to use is fine, but I moved onto (via the crap
>
> > Easy PC, I never did sell it on eBay !) to EAGLE and find it to be a
>
> > very good program. BTW they now have a cheaper version for Hobby
> users
> > that does not restrict as much as the freee version.
> > I tend to agree with you outlook on design for the home/hobby
> person,
> > make it from stuff that can be gotten at Home Depot...
> >
> > Anyway... I'm still interested in a simple way to through hole plate
> two
> > sided PCB's.... Every thing suggested so far has been a nightmare of
>
> > chemicals...
> >
> > Best Regards
> > Hans W
> >
> > crankorgan wrote:
> >
> > > Hi Hans,
> > > I have you listed on my links. I sent a few people your
> way.
> > > They come back saying they want a simpler design or a premade
> board. I
> > >
> > > won't get into the people who want a kit!
> > > You were the first person on the net to list a L297/L298
> > > design. Now there are lots of copycats.
> > >
> > > John
> > >
> > >
> > >
> > > --- In Homebrew_PCBs@y..., hans@c... wrote:
> > > > crankorgan wrote:
> > > >
> > > > > What I find is people are unable to find anything on
> > > > > the internet. Maybe they use the wrong search engine.
> > > >
> > > > I posted a complete design with PCB layout files and schematics
> at
> > > my
> > > > web site, during
> > > > the past years I have received 100's or emails from people that
> have
> > >
> > > > successfully built the
> > > > Modular Design, with or without the "Smart Current Monitor".
> > > >
> > > > The design is Free... I do not charge anything for it..
> > > >
> > > > When I get time I'm going to post a new design complete with
> EAGLE
> > > > files...
> > > >
> > > > Hans W
> > > > http://hans-w.com
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > [Non-text portions of this message have been removed]
> > >
> > >
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