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'[OT]: Air-soldering was: surface mount question..'
2001\03\01@094404 by severson

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> Rob, doesn't your air station have
> an adjustable air-flow? :)

I usually set it to "loud whistle". Really looks like I'm working hard when
my hair is blowing around.


I really like the air station. I was annoyed with it at first. I'm very good
at conventional soldering, but when I started with the air pencil, my ego
took a hit. It takes a little getting used to. But it is a great way to
surface-mount solder.

If you have a chance to use an air station, try it out. Don't be afraid.

And, yes, last I checked they were not inexpensive. Not hobby market.

So: Can anyone think of a way to build an inexpensive air pencil? The
question of surface mount soldering for the hobbyist has surfaced often. (I
know someone will mention toaster oven.)

How would you make a hot hollow tube? I think a fish tank air pump could
provide air-flow.



-Robert Severson
http://www.usbmicro.com
http://usbsimm.home.att.net
http://www.jged.com
http://www.annatechnology.com

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2001\03\01@100911 by severson

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> So, if they are NOT inexpensive, why suggest it.  He told you
> he was just a
> hobyist.  I can solder (with converntional iron) anything you
> can 'Hot air'
> and look just as good if not better.  I do have to admit that
> I use hot-air
> to REMOVE parts though (mainly TQFP's)  Otherwise, I just the tweezer
> atachment that came with my soldering station (METCAL
> "Smartheat" Rework
> Station).

I didn't start the hot-air topic, just commented on it because I've used the
tools.

Roman Black had the answer that I was looking for: a pre-built hollow tool.
I think I'll try Roman's great suggestion soon and let this list know how it
went.


-Robert Severson
http://www.usbmicro.com
http://usbsimm.home.att.net
http://www.jged.com
http://www.annatechnology.com

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2001\03\01@110751 by t F. Touchton

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part 1 2150 bytes content-type:text/plain; charset=us-asciiSorry guys and gals.  I started the hot air thread.  I wasn't sure where to draw
the line, and  I know some people put quite a bit of money into there hobbies.
Thought it would be more beneficial to lay out more possiblities and let him
intuitively decide which suited him.


|--------+----------------------->
|        |          Rob Severson |
|        |          <severson@JGE|
|        |          D.COM>       |
|        |                       |
|        |          03/01/01     |
|        |          10:09 AM     |
|        |          Please       |
|        |          respond to   |
|        |          severson     |
|        |                       |
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 >----------------------------------------------------------------------------|
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 |       To:     PICLISTspamKILLspamMITVMA.MIT.EDU                                       |
 |       cc:     (bcc: Scott Touchton/US/UNIPHASE)                            |
 |       Subject:     Re: [OT]: Air-soldering  was: surface mount question... |
 >----------------------------------------------------------------------------|





{Quote hidden}

I didn't start the hot-air topic, just commented on it because I've used the
tools.

Roman Black had the answer that I was looking for: a pre-built hollow tool.
I think I'll try Roman's great suggestion soon and let this list know how it
went.


-Robert Severson
http://www.usbmicro.com
http://usbsimm.home.att.net
http://www.jged.com
http://www.annatechnology.com

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part 2 3085 bytes content-type:application/octet-stream; (decode)

part 3 136 bytes
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2001\03\01@155305 by Dan Goddard

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Well... I found the hot air soldering thread to be interesting.... So no
worrries :) I haven't heard much about the toaster ovens in my neck of the
woods. Maybe because most of my work is not hobby work, and well, being
just the lowly design engineer, all the production people get to take
credit for the great soldering be it reflow oven, hot air pencil or with a
solid pencil. Though I have done numerous chip transplants myself with our
Zephyr station and a lot of SMT soldering in my past, I REALLY like this
toaster oven idea... I mean, I think I would like to build one up AS a
hobby! But do you T-O reflowers apply your paste with a syringe, or
stencil? Personally I cant recall us Oven-izing a board without a stencil.
Thanks for any insight. :)

Cheers
Dan

At 11:00 AM 3/1/01 -0500, you wrote:
{Quote hidden}

> >----------------------------------------------------------------------------|
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    |
  |       To:     PICLISTspamspam_OUTMITVMA.MIT.EDU
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  |       cc:     (bcc: Scott
Touchton/US/UNIPHASE)                            |
>   |       Subject:     Re: [OT]: Air-soldering  was: surface mount
> question... |
>
> >----------------------------------------------------------------------------|

{Quote hidden}

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Danny Goddard
Design Engineer
ARMA Design
Tel:(858) 549-2531
Fax:(858) 549-2594
Email: KILLspamdan_goddardKILLspamspamarmanet.com
Web: http://www.armanet.com



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2001\03\03@050015 by Peter L. Peres

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I once made a hot air pencil using a fish tank pump (large size), a 12V 2A
transformer and parts from a Weller WTCP iron. The element burned out soon
so I made a double spiral from heater wire (500W/220V = 2A) and packed it
inside the Weller tube with mica foil insulation.

It worked for a while but keeping the electrical contact good between the
heater wire and the cables was a bear and I eventually abandoned it. I
still have it in a cupboard at work. It was very slow and finicky and
occasionally spat mica particles into the work area. It also featured an
air smoother that used a certain kind of rubber balloon as active element
in a T joint on the air hose.

Peter

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