I agree that lead protrusion of that length would be a problem with wave
soldering. How about this:

http://www.unitdesign.com/MDS%20210.htm

Many years ago I used a much smaller table top version of this machine with
pretty good results. It was used for mass lead tinning.

=========================
Bob Barr
Manufacturing Engineering
Formation, Inc.
=========================

> -----Original Message-----
> From: Steve Gregory [mailto:[log in to unmask]]
> Sent: Thursday, March 11, 2004 10:37 AM
> To: [log in to unmask]
> Subject: SPAM:: [TN] How would you solder this Backplane?
>
>
> Mornin' All!
>
> One of the guys from our bid department asked me to come and look at a
> backplane we're bidding on, and tell him how we would solder
> it? I went and looked
> at it, and I'm not sure how we would. Go to
> http://www.stevezeva.homestead.com
> and take a look at Backplane Topside, Backplane Backside, and
> Backplane
> Backside Leads.
>
> The leads for all the connectors protrude at least a half
> inch or longer out
> the bottom of the board. I'm assuming they are that long
> because they get wire
> wrapped after the backplane is assembled. But how do you
> solder something
> like that? Some sort of dip solder pot? Drag solder? I don't
> think I'm going to
> be able to solder a board with leads that long in our Electra
> wave solder.
>
> I can tell board was mass soldered, and I'm thinking it was
> dipped somehow.
> Because you can see tiny little peaks on most of the lead
> tips that go straight
> up and down. Is there such thing as some sort of dip solder machine?
>
> Sorry for all the dumb questions, but I've never been around
> a backplane like
> this, and don't really know how something like this gets built.
>
> Thanks!
>
> -Steve Gregory-

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