Homebrew PCBs

Thank you, Henry.  I have a hot air gun available, so I guess I'll have to give it a try.

Donald.
--
*Plain Text* email -- it's an accessibility issue
()  no proprietary attachments; no html mail
/\  ascii ribbon campaign - <www.asciiribbon.org>

----- Original Message -----
> From: "Henry Liu" <henryjliu@...>
> To: "Homebrew PCBs" <Homebrew_PCBs@yahoogroups.com>
> Sent: Thursday, July 7, 2011 10:10:04 PM
> Subject: Re: [Homebrew_PCBs] Re: Removing SMDs
> I just squirt solder flux out of the syringe on all the pins, turn up
> the
> air gun to high and shoot hot air from the top and pick the part up
> with
> tweezers 20secs or so later. Hot air heats all the pads up at once.
> Solder
> flux isolates the area affected by the hot air. It's really simple and
> a
> hot air gun is around $100.
> 
> A lot of smd parts have pads underneath such as thermal pads and qfn
> chips
> and these are also no problem with a hot air gun.
> Henry
> 
> On Thu, Jul 7, 2011 at 6:45 PM, Donald H Locker
> <dhlocker@...>wrote:
> 
> > **
> >
> >
> > I "recently" removed a 144-pin LQFP with XActo knife, iron and
> > braid. If
> > you have pics or a video of removing such a critter with iron and
> > hot air in
> > 20 sec, I'd live to see it. I spend the better part of 15 minutes on
> > that
> > part.
> >
> > Donald.
> > --
> > *Plain Text* email -- it's an accessibility issue
> > () no proprietary attachments; no html mail
> > /\ ascii ribbon campaign - <www.asciiribbon.org>
> >
> >
> > ----- Original Message -----
> > > From: "Henry Liu" <henryjliu@...>
> > > To: "Homebrew PCBs" <Homebrew_PCBs@yahoogroups.com>
> > > Sent: Thursday, July 7, 2011 8:38:54 PM
> > > Subject: Re: [Homebrew_PCBs] Re: Removing SMDs
> > > Hot air gun/soldering station combo is around $100 new off ebay
> > > and is
> > > probably the best solution.
> > >
> > > Using hot air and flux in syringe I can remove most SMD components
> > > including 200 pin qpfs in 20sec or less.
> > >
> > > Low melt solder is ok except it's still easier to use the hot air
> > > which has no cleanup.
> > >
> > > Henry
> > >
> > > On Thu, Jul 7, 2011 at 1:27 PM, Mark Mickelsen
> > > <msmickelsen@...>
> > > wrote:
> > > > Could you please post a link to the picture of the "forked
> > > > soldering
> > > > iron
> > > > tip". I looked on site, but didn't see anything with the name
> > > > "Andrew" or
> > > > any cover pictures that looked like it. I'm probably blind, but
> > > > I'd
> > > > like to
> > > > see the pictures.
> > > > Thanks,
> > > > Mark
> > > >
> > > > On Thu, Jul 7, 2011 at 8:24 AM, Andrew <a_wake@...>
> > > > wrote:
> > > >
> > > >> **
> > > >>
> > > >>
> > > >> Two or three months ago I posted a picture of a "forked"
> > > >> soldering
> > > >> iron tip
> > > >> that I made -- I was asking if I had come up with something
> > > >> new, or
> > > >> merely
> > > >> re-invented the wheel. Not surprisingly, it was the latter ...
> > > >> but
> > > >> all the
> > > >> same, it is a GREAT tool for removing SMD devices. The only
> > > >> downside is that
> > > >> it is made to fit one particular profile. Since I have the
> > > >> copper
> > > >> and the
> > > >> machine shop, I'll probably eventually make a few other
> > > >> profiles to
> > > >> fit the
> > > >> other SMD components that I tend to use.
> > > >>
> > > >>
> > > >> --- In Homebrew_PCBs@yahoogroups.com, "Peter Leybourne"
> > > >> <peter.ley08@...>
> > > >> wrote:
> > > >> >
> > > >> > Somebody may have mentioned this.....
> > > >> > I saw somewhere an article with a soldering iron 'tip'
> > > >> > extension
> > > >> > made in
> > > >> the
> > > >> > shape of a two pronged fork. Several extensions were made as
> > > >> > needed for
> > > >> > different size/shape components.
> > > >> >
> > > >> > Peter
> > > >> > MM5PSL
> > > >> >
> > > >>
> > > >>
> > > >>
> > > >
> > > >
> > > > [Non-text portions of this message have been removed]
> > > >
> > > >
> > > >
> > > > ------------------------------------
> > > >
> > > > Be sure to visit the group home and check for new Links, Files,
> > > > and
> > > > Photos:
> > > > http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links
> > > >
> > > >
> > > >
> > > >
> > >
> > >
> > > ------------------------------------
> > >
> > > Be sure to visit the group home and check for new Links, Files,
> > > and
> > > Photos:
> > > http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links
> > >
> > >
> > >
> >
> >
> >
> 
> 
> [Non-text portions of this message have been removed]
> 
> 
> 
> ------------------------------------
> 
> Be sure to visit the group home and check for new Links, Files, and
> Photos:
> http://groups.yahoo.com/group/Homebrew_PCBsYahoo! Groups Links
> 
> 
>