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'[OT:]Toaster Oven - Death of the solitary invento'
2004\07\03@134641 by Scott Fraser

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At 06:41 AM 7/3/04, you wrote:
>In message <200472155431.978045@dragon>
>           Matt Pobursky <spam_OUTpiclistTakeThisOuTspamMPS-DESIGN.COM> wrote:
>
> > the "$100 SMT Toaster Oven".
>Does anyone have any idea where the heck I can get a toaster oven in the UK?
>I've never seen anything even remotely similar over here...


Phil,

You might want to use the search terms
mini cooker
or
mini kitchen

looks like you guys have a real nice small oven that is larger than toaster
ovens, about the size of a small microwave oven.

Scott

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2004\07\03@203013 by Matt Pobursky

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On Sat, 3 Jul 2004 10:42:08 -0700, Scott Fraser wrote:
> At 06:41 AM 7/3/04, you wrote:
> >In message <200472155431.978045@dragon>
> >      Matt Pobursky <piclistspamKILLspamMPS-DESIGN.COM> wrote:
> >
> > > the "$100 SMT Toaster Oven".
> >Does anyone have any idea where the heck I can get a toaster oven in the UK?
> >I've never seen anything even remotely similar over here...
>
>
> Phil,
>
> You might want to use the search terms
> mini cooker
> or
> mini kitchen
>
> looks like you guys have a real nice small oven that is larger than toaster
> ovens, about the size of a small microwave oven.

Another thing you might want to look for is an oven with a small
circulation fan -- they normally refer to these as "convection ovens".
I bought a DeLonghi oven with a fan and it helps tremendously in
smoothing out the thermal gradients in the oven vs. without it. I also
looked for an oven with (4) heating rods, (2) on top and (2) on bottom
fairly equally spaced in the cooking compartment. By using multiple
thermocouples, I've found that the oven heats more evenly w/fan and
driving all (4) elements than other ovens I've measured with only (2)
rods and no fan.

I really need to get my controller done, so far I've developed a simple
profile that I run using a stopwatch and manually controlling the oven.

Matt Pobursky
Maximum Performance Systems

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2004\07\03@204431 by Marcel Duchamp

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We use the DeLonghi also, Matt, so just for curiosity sake, what's your
stopwatch profile?

Here's ours:
        very important: preheat oven at least 10 minutes at 250F in bake mode
        put in boards on top rack
        wait 90 seconds
        switch to broil mode (top heaters)
        from here, it usually takes around 2.5 to 3 minutes to finish
        after seeing all paste turne shiny, turn off heat, leave door closed
        after 1 minute open door, wait another minute to cool
        remove

MD

At 05:29 PM 7/3/04, you wrote:
{Quote hidden}

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2004\07\29@054320 by hilip Stortz

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the other thing that moving the air does is to break the air film that
is normally over a surface and insulates it, and of course it moves heat
from the elements to the object being heated better, just like a fan on
a heatsink, i.e. it helps pump the heat from the source to the object
you are heating, it doesn't just make the air a more uniform temperature
which by itself isn't really very important.  what is important is
uniformity of the surface temperature of the object being heated and how
fast you can pump heat into it, especially with food where you have
evaporation cooling the surface and other cooling phenomenon happening
(i.e. the chemical reactions that make the food "cooked" use heat and
actually cool the food while it's cooking).

however, for a hobbyist or very low volume, i'd prefer to buy a cheap
used oven or build one and add my own fan, much cheaper that way.
convection ovens tend to be a bit expensive, and for the hobbyist it
doesn't need to be that pretty and ease of repair/substituting different
fan motors etc. is important.  all things considered, now that i realize
that 2 ovens are needed i'll be checking garage sales etc. for another
large one like i already have, it's hard to build something for less
than you can by used and then modify with parts laying around.

as far as solitary inventors, there are plenty of relatively simple
things left to be invented, and the level of technology actually allows
a solitary inventor to build their own equipment and work in fields that
would otherwise require a large research facility.  i myself have an
idea to work on if i ever have the money that was impossible for any one
to do 50 years ago, which is why my solution to the problem was never
developed, people continue using variations of the "bad" solution that
was easy 50 years ago and no one has gone back and looked at the
original basic problem in a flexible way to reconsider development paths
that are now possible but weren't originally practical or needed.  i'll
also be simulating/modeling a lot of this research soon so that i may
actually be able to build prototypes and test them without some of the
advanced equipment i'd like to build, and that has only recently become
possible on a home computer (the software has only been reasonably
available for about 2 years in this particular area, and it's very
sophisticated software).

now as far as simple product development, it's never been reasonable for
an individual to compete with corporations on mass market items like tv
sets etc., but that's different than inventing new solutions to a
problem which is becoming easier for a creative individual to do,
particularly if they are willing to go back to the basic problem for new
solutions rather than trying to enhance current solutions.

Matt Pobursky wrote:
---------
> Another thing you might want to look for is an oven with a small
> circulation fan -- they normally refer to these as "convection ovens".
> I bought a DeLonghi oven with a fan and it helps tremendously in
> smoothing out the thermal gradients in the oven vs. without it. I also
> looked for an oven with (4) heating rods, (2) on top and (2) on bottom
> fairly equally spaced in the cooking compartment. By using multiple
> thermocouples, I've found that the oven heats more evenly w/fan and
> driving all (4) elements than other ovens I've measured with only (2)
> rods and no fan.
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2004\07\29@062826 by Russell McMahon

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> as far as solitary inventors, there are plenty of relatively simple
> things left to be invented, and the level of technology actually allows
> a solitary inventor to build their own equipment and work in fields that
> would otherwise require a large research facility.

I know that many of my ideas are world class as I subsequently find that a
certain percentage have been stolen by people and made them rich years or
decades before I think of them :-)

I have a few hundred ideas filed away.
I'm considering whether I should spend next year working on a few tens of
them (there area number of factors to consider) to see what I can really
achieve in a single year.

I can imagine that I'd probably have to unsubscribe from PICList though :-)


       RM

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