[Blindtlk] Soldering revisited

[T. Joseph Carter]

I am considering that the solution might be some of the tools used to 
solder surface mount devices by hand.  Typically you have a board 
with a solder mask.  You apply solder paste, and it will be repelled 
by the solder mask.  Unless you use too much paste, the solder mask 
should resist solder bridges quite nicely.

Since the solder paste is applied cold, a syringe with a fine tip 
should be able to do the job.  Then a hot air pencil.  I don’t have 
these things, but it should work.  If others have done it, I’d love 
to know.  If not, guess I’m the trail blazer.

Joseph - kf7qzc


On Thu, Aug 11, 2011 at 01:23:28PM -0500, Bryan Schulz wrote:
>hi,
>
>if he has, that would be a neat trick as the pins on printed circuit 
>boards are about 3mm apart and a bridge anywhere causes a failure.
>
>Bryan Schulz
>
>----- Original Message ----- From: "Hyde, David W. (ESC)" 
><david.hyde at wcbvi.k12.wi.us>
>To: "'Blind Talk Mailing List'" <blindtlk at nfbnet.org>
>Sent: Thursday, August 11, 2011 12:45 PM
>Subject: Re: [Blindtlk] Soldering revisited
>
>
>>Joseph, get hold of Curtis Wilouby. If anyone does it, he has.
>>
>>-----Original Message-----
>>From: blindtlk-bounces at nfbnet.org 
>>[mailto:blindtlk-bounces at nfbnet.org] On Behalf Of T. Joseph Carter
>>Sent: Thursday, August 11, 2011 11:26 AM
>>To: Blind Talk Mailing List
>>Subject: [Blindtlk] Soldering revisited
>>
>>Hey everyone,
>>
>>Once upon a time, we had a discussion on this list about soldering 
>>wires and the like.  A suggestion made was to take the solder, 
>>pound it flat with a hammer, and then wrap it around the 
>>wire/terminal being soldered. Then you need only heat the 
>>connection a few seconds so that the solder can melt and make a 
>>solid electrical connection.
>>
>>I can tell you that this technique works pretty well for stranded 
>>wire or stranded to solid wire (such as the leads of an LED for 
>>example), and could probably be done for two solid wires if you had 
>>sufficient success using third hand clips to hold the thing still 
>>long enough.
>>
>>But I want to be able to solder packages with pins on 0.1 inch 
>>centers. Transistors, old-fashioned DIPs, that kind of thing.  I 
>>brought it up on nfb-hams, and nobody’s volunteered a brilliant 
>>strategy yet, so I figured I’d ask a wider audience.  *smile*
>>
>>I’m sure it must be possible for a blind guy to do it—I’m just not 
>>sure how yet.  Advice welcome!
>>
>>Joseph - kf7qzc
>>
>>
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>
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