You can get more even heating by placing ceramic tiles above and below
the PCB.  This may also help reduce thermal shock from turning on the
coils.

Sherpa Doug

> -----Original Message-----
> From: Jeff DeMaagd [mailto:jeff@DEMAAGD.COM]
> Sent: Thursday, July 26, 2001 10:25 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [OT]: hobbyist SMT prototyping?
>
>
> I'm not exactly sure how the discussion got to unsoldering,
> as I was hoping
> to do soldering, I don't think unsoldering ist that much of a
> problem for
> the time being.
>
> I am waiting with interet in the result of Ashley's &
> Alexandre's project.
> Any way to hack/modify an off-the-shelf mini-oven to perform
> the task would
> be of use to me, particularly for experimentation.  If there
> was call for it
> I don't have a problem with getting pro-grade equipment and
> leaving at that.
>
> Jeff
>
> ----- Original Message -----
> From: Joe Valdez <JV4991@AOL.COM>
>
>
> > The cheap way to unsolder SMT components (0402 and larger) is to buy
> several chisel tips at the local swap meet.  Then, using a
> swiss file, cut a
> slot in the tip corresponding to the size of the component to
> be remove.
> The component is simply removed by holding the body with a
> pair of tweezers
> and apply heat to the two ends of the SMT component simultaneously.<
>
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