Re: gEDA-user: home made hot plate

[Dave N6NZ <n6nz@xxxxxxxx>]

Yes, it looks like a good way to go for cheap hot-plate soldering, but 
they also say that uneven heating is an issue.  My thought with the 
power resistors is that you could arrange them such that you got more 
even heat.  And a prowl of the surplus houses should turn up a hand full 
of old fashioned power resistors in the square ceramic cases that would 
be easy to epoxy to a sheet of metal, and you should be able to build 
something for under $30 with good scrounging.  The next time I visit the 
local surplus house I plan to look for some resistors.

In the mean time... I just ordered a factory refurbished convection 
toaster oven off of Amazon for $60... will let you know how that works 
out :)

-dave

carzrgr8@xxxxxxxxxxxxx wrote:
> I think this link has been tossed around before - sorry if it's a repeat.
> http://www.sparkfun.com/commerce/present.php?p=Reflow%20Skillet
>
> These guys did a study of the best reflow gizmo and found it to be $30 
> skillet!
>
> gene
>
> ----- Original Message -----
> From: Dave N6NZ
> Date: Friday, March 2, 2007 1:11 pm
> Subject: gEDA-user: home made hot plate
> To: gEDA user mailing list
>
>  > Seeing DJ's hot plate photo brought to mind a link I once saw,
>  > where a
>  > guy built a home-brew SMT hot plate. I can't find the link, but
>  > as I
>  > recall, he used a few low-ohm high-watt power resistors epoxied
>  > to a
>  > piece of aluminum sheet. He drove it with a 0-30V bench supply
>  > and
>  > controlled the temperature manually by varying the voltage.
>  >
>  > Seems to me that one should be able to build a pretty good hot
>  > plate
>  > that way for not a lot of money. Although I would think that
>  > copper
>  > might give more uniform heat spreading than aluminum (at much
>  > greater
>  > expense, however, unless you get lucky). And a thermostatic
>  > temperature
>  > control shouldn't be hard.
>  >
>  > -dave
>  >
>  >
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>  >


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