GREENPOWERSCIENCE | FRESNEL LENS EXTREME Solar 3000˚ F Sunlight Melting a Burning Stuff with the Sun @GREENPOWERSCIENCE | Uploaded May 2012 | Updated October 2024, 1 week ago.
This is our extreme solar fresnel lens in action. I have a GIANT Lens that is even stronger but this spot fresnel lens works perfect for heating metal using the sun.
Lens available http://www.greenpowerscience.com/SHOP...
The saw blade is solid steel. Total time through the blade was 3 minutes. All other melts were realtime.
http://www.youtube.com/user/GREENPOWE...