Hey everybody! Ive wanted to make one of these forever. Well, i have made one before but it was not a 'good' fresnel lens. If you want to learn more about fresnel lenses this is a good website - https://rimstar.org/equip/fresnel_len... They have a youtube channel too with lots of educational content. https://www.youtube.com/user/RimstarOrg
And of course shoutout to The King of Random where i first saw this idea ! https://www.youtube.com/watch?v=jrje7...
Burning stuff with a giant fresnel lens + how a DLP projector works ─ TheBackyardScientist
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