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Message from discussion Soldering gun for resistance soldering
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wkaiser  
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 More options Jan 29 2003, 10:55 am
Newsgroups: rec.models.railroad
From: wkai...@mtholyoke.edu ( )
Date: Wed, 29 Jan 2003 15:55:07 GMT
Local: Wed, Jan 29 2003 10:55 am
Subject: Re: Soldering gun for resistance soldering

JCunington (jcuning...@aol.com) wrote:
> Some time back in my thread "Built my own resistance soldering unit", someone
> asked the question of whether or not a soldering gun could be used as the
> transformer for an RSU. We never definitively answered that question.

This is a follow up to a rather old post, but the definitive answer is,
yes.

I had a couple of parts half soldered together, and I wanted a better
joint.  I didn't want to use an iron because I didn't want to heat the
surrounding areas.  Sounds like a job for a resistance solderer, which I
don't have.

I took the tip off the gun, then took a couple of pieces of #14 copper
wire about 4" long, and bent about 1/2" over double at one end of each
piece, and twisted that end so the tip clamp screws would hold.  I bent
the free ends around to form a sort of pincher, and caught the parts to be
soldered between the wire ends.  I pulled the trigger for a few seconds
and the solder melted and flowed to make a better joint.

So, a soldering gun can be used for resistance soldering.  The major
drawback of the way I did it was that it was pretty inconvenient.  It took
three or four hands and a couple of elbows to hold everything in place to
solder.  It didn't happen this time, but the copper wire tips could have
easily been soldered to the rest of the pieces.

Now that people know that it can be done, maybe somebody will come up with
some better ways to do it.

--
Bill Kaiser
wkai...@mhc.mtholyoke.edu

There are three ways to do a job: good, cheap, and quick.
You can have any two.
A good, cheap job won't be quick.
A good, quick job won't be cheap.
A cheap, quick job won't be good.


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