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A comment on Show HN: Homemade Automated Solar Concentrator. Parent comment

Re:Show HN: Homemade Automated Solar Concentrator by remipch on Thursday August 29, 2024 @02:56PM (#41394151)
FYI, this is the "vacuum adjustable focus mirror" I mentioned:

https://lm.solar/order/4-square-rigid-aluminum-composite-mir...

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