Yes click bait! I think this proves that there is a sucker born every minute!
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Wow! Is that a magnifying glass? I didn’t know they still made those.
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It just needs an XY or X-theta positioner and it would do a fine job. Except here in England where it would also need a mechanism to stop it moving during cloud cover.
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Hmm… Power the xy by a solar panel and it would stop if there wasn’t enough sun… 
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Guaranteed not to start a fire if it stops!
You could even put a mechanical iris over the lens to vary the power level!
Thanks for the chuckle. For curiosity I visited the site. They think very highly of their solar engraver.
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