Uploader Comments (GREENPOWERSCIENCE)
All Comments (17)
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will fresnel lens from lowes work for a diy projector
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I would like to know how to make the lens!
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where did u get your Fresnel lens, i would really like to have one in my science project. and great video i love your diy videos
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But How do yo make the Frame for the Fresnel lens? i can't find a vid on that one.
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Nice ruler.
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Nice job Dan, Muddy
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"Or does it just destined to sin on the shelf forever?"
Nope .. Some projects don't require straight and perfect wood because they will be either cut so small that it don't matter, used as wall braces that will be covered up by sheet rock, or for any other project that does not require perfect wood, ie, chicken coop.
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Fergus247: To use as a heat source. It's basically a giant magnifying glass, only cheaper and lighter. Dan often uses it in combination with a sterling motor, which operates using heat.
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Hi, what am i using a fresnel for?
This is something i'm always curious about when i hear people talk about proper wood selection.
If everyone selected wood that was straight and perfect, what ultimately happens to the wood that isn't straight and perfect?
Surely if you don't select the flawed wood - that just means someone else is forced to use it.
Or does it just destined to sit on the shelf forever?
roidroid 2 years ago
I actually buy the curved wood left over from Lowes at 50% off. It can still be used for building projects but not long straight stuff. Every since the housing bust starting in 2006, straight wood is easy to find. During the boom most good 2x4 were offered first to contractors and sent overseas. In 2006 I wold find 1 nice 2x4 for every 20 at lowes and homedepot. They were selling rocking chair bases as first quality wood. They were also 30% more expensive.
GREENPOWERSCIENCE 2 years ago