[sdiy] Solder paste and toaster ovens

[Tony Clark]

> A while back someone here spoke about flowing solder paste in a toaster
> oven.
> 
> Anyone do this?  Would a heat gun work better or as well?  I'd like to avoid
> putting whatever particulates the solder paste may spew into my toaster oven
> so my bagels don't become carcinogenic!

   A standard heat gun, like for shrink tubing?  Won't cut it.  You 
_might_ be able to get a toaster oven to work, but I'd wager you'd have a 
bit better luck with a convection based oven instead.  In any case, I'd 
recommend finding a thermojet hand-tool.  It has a very fine-point 
nozzle that directs superheated air right to a specific point.  Great 
for doing tight SMT rework.

> In a nutshell, I may have to solder an expensive NPN pair in a TO-71 can to
> a board using solder paste so that I can get it down close enough to the
> board surface soo it rests upon a chip resistor. Basocally - REAL low to the
> board. Problem is, when the tranny is down that far I can't get to the leads
> to solder them (non plated through holes).

  Put it upside-down on the chip?  That way the leads are sticking up and 
then you can wire them however you'd like.  Otherwise, I'd have to see an 
image of what you're doing to give you a better suggestion.

   Good luck!

   Tony

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