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'[OT]Going with SMT'
2006\01\10@052616 by Steph Smith

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>Does anyone have any recommendation?
I had some experience in the repair industry,the weapon
of choice was always the Antex range;as they lasted,
worked well and the puchase AND repair cost
(when they got trod-on!) was reasonable.Avoid anything
with a grub screw to hold the bit on (the Antex have a
push-on bit which is easy to change) I picked
up a Pace SMT gun and when i saw the replacement
element prices, i sold it. How these companies get away with
such outrageous spares prices baffles me.I suppose industry just
has to pay,and pass on the bill to the customer :(

2006\01\10@104513 by Mike Hagen

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I have been using SMT for a several years now, I have found 0603 is the
smallest I like to do.
I use a ring magnifier glass and tweezers.  Have tiny Weller tip controlled
iron.  Use smallest "Solder Wick" for fixing things.   It is really great
for running along the pins of a fine pitched IC like a PIC!    I have to do
it in the morning after only the first few cups of coffee!
My eyes are 60 years old now and I find my glasses get in the way!  After a
pot of coffee, the whole board is moving!

For solder, I use the "water soluble" flux solder for easier clean up.  I
think it is the RED box from Kester - .031" diameter.  Alcohol bath first
with a tooth brush, then water with a little dish soap scrub.  Then a water
rinse for a shinny PCB.

My biggest board was about 6"X12" 4 layer with over 700 SMT components on
both sides.
I only put the wrong resistor value in 5 places after days of mounting SMTs!
Not bad!

I always do the small and lo-profile parts first.  The big parts that get in
the way are last to go on.
You can also do it in sections.  Power supply and regulators first to check
voltages on bus lines.
Then you can power the board up every once in a while to check if the latest
work has caused problems?

I just ordered some 10F200 Pics yesterday in the SOT23, Oh boy!

Mike
Crestline, Ca.

{Original Message removed}

2006\01\10@123948 by Philip Pemberton

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In message <003601c615d1$21a5cce0$b03c2a52@boris>
         "Steph Smith" <spam_OUTzapsmithTakeThisOuTspamblueyonder.co.uk> wrote:

> I had some experience in the repair industry,the weapon
> of choice was always the Antex range;as they lasted,
> worked well and the puchase AND repair cost
> (when they got trod-on!) was reasonable.

I agree - I've had numerous XS irons, and a 660TC. I gave up on the XS when I
found out just how hot they got during a long soldering run (hot enough to
rip up tracks and burn SRBP board). The 660TC is fine - absolutely reliable,
and it's nice not to have tracks lift off a PCB when I'm trying to repair
it...

Personally, I wouldn't use anything else. YMMV though.

--
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