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September 2007

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TechNet E-Mail Forum <[log in to unmask]>, Hfjord <[log in to unmask]>
Date:
Wed, 19 Sep 2007 22:41:13 +0200
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Are you sick?
/Inge

-----Ursprungligt meddelande-----
Från: TechNet [mailto:[log in to unmask]] För Whittaker, Dewey (EHCOE)
Skickat: den 19 september 2007 22:15
Till: [log in to unmask]
Ämne: Re: [TN] Autofeed Soldering Irons

Well stated. I agree with Steve.
Dewey

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory
Sent: Wednesday, September 19, 2007 12:43 PM
To: [log in to unmask]
Subject: Re: [TN] Autofeed Soldering Irons

Hi Blair!

Got your pictures up. They're here:

http://stevezeva.homestead.com/files/Blairs_Switch_Topside.jpg

http://stevezeva.homestead.com/files/Blairs_Switch_2.jpg

In looking at your assembly, it looks like you have some pretty tall
components on the top, and you have the tanatlum at C1 and the ceramic
cap at C6 that are in the footprint of the switch which makes things
kind of challenging for selective soldering. That said, it probably
still can be done.

Do you have an Airvac PCBRM? They might be able to come up with a custom
nozzle that could do the job. Here's a link:

http://www.air-vac-eng.com/flowwells.htm

I've had a few custom nozzles made and they do a good job. If you don't
have a PCBRM, they can be found used for a decent price...

Steve

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Hogg, Blair K.
Sent: Wednesday, September 19, 2007 11:37 AM
To: [log in to unmask]
Subject: Re: [TN] Autofeed Soldering Irons

I'll see if I can get a picture or two over to Steve's wall. Perhaps you
can take a look at it and see if you think a selective soldering fixture
would work. 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Whittaker, Dewey
(EHCOE)
Sent: Wednesday, September 19, 2007 12:31 PM
To: [log in to unmask]
Subject: Re: [TN] Autofeed Soldering Irons

Why not use selective soldering?
Dewey

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Hogg, Blair K.
Sent: Wednesday, September 19, 2007 9:19 AM
To: [log in to unmask]
Subject: [TN] Autofeed Soldering Irons

We have a new product in development that will have a rotary switch
mounted on the solder side of the PCBA, thus having to be soldered from
the component side, necessitating hand soldering. The switch has two row
of 6 through hole contacts at standard .100 spacing.

In the past we looked into using soldering irons with auto-feed solder,
but didn't get very far as they would get gummed up with flux and would
have feed problems, but are now thinking of trying these again. 

Has anybody out in TechNet land used autofeed soldering irons? What one
work well, or should be avoided? 

How about low cost soldering robots? Anything reasonably priced? 

If you would prefer to reply off the list, please feel free to do so.

Thanks,

Blair

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