[Blindtlk] Soldering revisited

Fri Aug 12 04:45:44 UTC 2011

hi,

i did it about 20 years ago with sight. i never said it couldn't be done. 
from mo so show me a total blind person can solder pcb within a reasonable 
time frame without bridges.
the method mentioned with the solder inside a tube sounds like the 
desoldering gun i had with the squeeze bulb but in reverse.

Bryan Schulz

----- Original Message ----- 
From: "Steve Jacobson" <steve.jacobson at visi.com>
To: "Blind Talk Mailing List" <blindtlk at nfbnet.org>
Sent: Thursday, August 11, 2011 10:39 PM
Subject: Re: [Blindtlk] Soldering revisited

> Joe,
>
> I have done a little of this successfully and I know of others who have 
> done it.  First regarding the pounding solder flat
> and wrapping it, that can work as you said, but you have to be careful to 
> get the wire hot enough to melt the solder.  If
> the iron melts the solder but the wire has not gotten hot enough, you will 
> end up with a cold solder joint.  I have been
> more a fan of placing the end of the solder on the joint and then applying 
> the iron until you feel and/or smell the solder
> begin to melt.  If the method you used has worked, though, you are 
> apparently getting enough heat to the joint.
>
> Soldering always involves experimentation with different types of irons to 
> see what works best for you.  There are
> some that actually use the conductor itself as the bridge between 
> connections thereby heating it.  For the kind of
> soldering you are considering, you need a very fine tip.  Some blind 
> persons have fed solder down the inside of a
> hollow metal tube.  The tube can be placed with the end on the desired 
> connection and is rigid enough to keep in
> place.  The Smith-kettelwell Foundation published a series of articles on 
> soldering and made such tubes available.  It
> was made of a metal that shed heat quickly.  I think that all of the 
> magazines have been archived, so you could
> probably find the series on soldering.  Since those articles, there have 
> been some new irons, though.  Looking for
> those articles might be worth it, though.
>
> Unlike Brian, I do not believe that because I am not good at something 
> nobody can be.  I have successfully
> resoldered a DIP-style connector where a couple of the pins came loos from 
> the circuit board, and I did quite a bit of
> soldering on larger items.  Experiment and see if you can find that old 
> series of articles on soldering.
>
> Best regards,
>
> Steve Jacobson
>
> On Thu, 11 Aug 2011 16:27:11 -0700, T. Joseph Carter wrote:
>
>>ThatG?Ts what I was called growing up, but I can tell you that IG?Tm
>>certain it doesnG?Tt much matter in this case.  I canG?Tt see how I could
>>possibly do it under a CCTV, and anything short of that isnG?Tt going
>>to give me enough magnification to do it visually.
>
>>If this is going to work for me at all, IG?Td be able to do it under
>>sleepshade with a continuity tester to test connections.  ItG?Td be
>>slow work to test that way, but IG?Tm probably going to have to do that
>>kind of testing anyway.  Testing needs one mini-grabber clip on the
>>component lead and a needle probe to make sure youG?Tve got a solid
>>connection at the other end of the trace youG?Tre soldering it to.
>
>>Joseph - kf7qzc
>
>
>>On Thu, Aug 11, 2011 at 02:45:13PM -0500, Bryan Schulz wrote:
>>>hi,
>>>
>>>i haven't heard of this but it sounds like it would work. i'm
>>>guessing you are a hi-partial and not guessing where the doughnut
>>>gaps would be.
>>>Bryan Schulz
>>>
>>>----- Original Message ----- From: "T. Joseph Carter"
>>><carter.tjoseph at gmail.com>
>>>To: "Blind Talk Mailing List" <blindtlk at nfbnet.org>
>>>Sent: Thursday, August 11, 2011 2:39 PM
>>>Subject: Re: [Blindtlk] Soldering revisited
>>>
>>>
>>>>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 donG?Tt have
>>>>these things, but it should work.  If others have done it, IG?Td love
>>>>to know.  If not, guess IG?Tm 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 nobodyG?Ts volunteered a
>>>>>>brilliant strategy yet, so I figured IG?Td ask a wider audience.
>>>>>>*smile*
>>>>>>
>>>>>>IG?Tm sure it must be possible for a blind guy to do itG?"IG?Tm just
>>>>>>not sure how yet.  Advice welcome!
>>>>>>
>>>>>>Joseph - kf7qzc
>>>>>>
>>>>>>
>>>>>>_______________________________________________
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>>>>>>
>>>>>
>>>>>
>>>>>_______________________________________________
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>>>>
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>>>
>>>
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>
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>
>
>
>
>

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