@NegentropicBoy to Videos@lemmy.ml • 1 year agoFresnel Lens Manufacturingwww.youtube.comexternal-linkmessage-square2arrow-up112
arrow-up112external-linkFresnel Lens Manufacturingwww.youtube.com@NegentropicBoy to Videos@lemmy.ml • 1 year agomessage-square2
that vid was actually quite interesting