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saboot
on Nov 11, 2021
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3D printed mirror array
You'd need the mirror planes to be adjustable in the XY tilt directions. Seems doable though, would be a cool next project
enchiridion
on Nov 11, 2021
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Or not? That’s an interesting challenge. Multiple messages depending on the light angle
ansible
on Nov 12, 2021
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Sort of the opposite of a digital sundial:
https://www.thingiverse.com/thing:1068443
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