[EMS Discuss] Solar Foundry

Bob Miller EMAIL HIDDEN
Mon Sep 9 10:38:43 PDT 2013


I have a fresnel lens in my closet.  It is somewhat smaller than the
one in the video.  I would happily donate it to a solar foundry
project.

On Mon, Sep 9, 2013 at 9:13 AM, Rick Osgood <EMAIL HIDDEN> wrote:
> I'm really interested in doing a solar project.  I'm not sure I have the
> spare cycles (or cash) right now trying to finish the vacuum former but I'll
> do what I can.  This sounds fun.
>
>
> On Sun, Sep 8, 2013 at 9:08 PM, Mark Danburg-Wyld <EMAIL HIDDEN>
> wrote:
>>
>> Also: http://www.dezeen.com/2011/06/28/the-solar-sinter-by-markus-kayser/
>>
>> What a world.
>>
>>
>> On Sun, Sep 8, 2013 at 9:07 PM, Mark Danburg-Wyld <EMAIL HIDDEN>
>> wrote:
>>>
>>> My guess is we would need full sunlight to get much heat. Maybe it will
>>> still get hot enough to use as an oven though, even through clouds.
>>>
>>> Sam, good thought on scrounging the fresnel lens from an old tv - just
>>> checked craigslist and there's several cheap-to-free ones posted. All I need
>>> now is a truck and some free time... Apparently there's both "spot" and
>>> "linear" versions, and the "spot" version gets much much hotter.
>>>
>>> I doubt putting another object in the current space is a good idea,
>>> however. Especially one that starts with a fairly large lens that has to be
>>> rolled out into full sunlight to get really exciting results. Maybe this one
>>> should go on the back burner for a few months until we're in a larger space
>>> - time the build to finish when the clouds break next year?
>>>
>>>
>>> On Sun, Sep 8, 2013 at 8:01 PM, Weston Turner <EMAIL HIDDEN>
>>> wrote:
>>>>
>>>> Do you think that even in the winter months it might produce enough heat
>>>> to use it as a solar oven? If you could cook with it even in overcast
>>>> whether, it would be a cool demonstration of how much solar energy makes it
>>>> through the clouds even in the rainy season.
>>>>
>>>> Just a thought as to what it might be useful for the other 8-9 months of
>>>> the year.
>>>>
>>>> Weston
>>>>
>>>> On Sep 8, 2013, at 7:51 PM, Sam Foster <EMAIL HIDDEN> wrote:
>>>>
>>>> Oh I've seen this video. We need a large fresnel lens - they come from
>>>> large old rear projection tvs. In other words with some judicious
>>>> scavenging, the whole build shouldn't cost more than a bit of lumber and
>>>> fixings.
>>>>
>>>> On 9/8/2013 7:27 PM, Mark Danburg-Wyld wrote:
>>>>
>>>> Step 1: Watch this video: http://www.youtube.com/watch?v=drE54ctrHBY
>>>> Step B: Let me know if you'd be interested in building a solar foundry
>>>> for EMS
>>>> ???
>>>> Step 4: Profit!
>>>>
>>>>
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>>
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-- 
Bob Miller                              K<bob>
                                        EMAIL HIDDEN


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