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3D printed mirror array

github.com

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Re: 3D printed mirror array

#21

Post by r00fus »

gnramires wrote: post #14
_Microft wrote: post #8

I might be getting old but this is the sort of magic by technology I would like to see more of in the world instead of using tech to try putting people into fake worlds in some metaverse.

I don't think the particular metaverses available right now seem that good, but I don't share the consistent prejudices against virtual reality. Why is real reality any better? You can build awesome stuff in virtual reality as well (in fact, you can build almost anything imaginable, at a much lower cost). Keeping in touch with reality is extremely important (because we are bound by its rules after all), but virtual e…

VR is a better mousetrap to keep people engaged and connected (two things FB values a lot as it drives revenue).

What real-world problems does VR serve for the average FB user? Or anyone frankly?

Meanwhile, 3D printing could greatly improve how we design and fabricate things people use every day.

Re: 3D printed mirror array

#24

Post by dang »

ampdepolymerase wrote: post #11
_Microft wrote: post #8

I might be getting old but this is the sort of magic by technology I would like to see more of in the world instead of using tech to try putting people into fake worlds in some metaverse.

There is nothing special about this. This is the basis of all MEMS technology used in lidar. Some VR goggle designs probably contain MEMS parts too. It is disingenuous to complain about the metaverse business model while oohing and aahing over the exact same technology used to implement it.

Can you please not post in the flamewar style to HN? We're trying to avoid flamewars here, and I'm sure you can make your substantive points without that.

https://news.ycombinator.com/newsguidelines.html

Re: 3D printed mirror array

#26

Post by [deleted] »

_Microft wrote: post #8

I might be getting old but this is the sort of magic by technology I would like to see more of in the world instead of using tech to try putting people into fake worlds in some metaverse.

[deleted]

Re: 3D printed mirror array

#27

Post by hobofan »

123pie123 wrote: post #18
harvie wrote: post #7

This is future of the street art. Mount it using liquid nails to some place that is hard to access and point it somewhere where lots of people will see it during rush hour. Eg.: You can install it in such way that parliament building will get defaced every day during lunch hours by mounting on near building or tall lamp post. Or maybe put it on your own roof, that way nobody can remove it :-)

like the idea but how much sun does london really get?

Enough to allow a skyscraper to melt cars[0].

[0]: https://www.bbc.com/news/uk-england-london-23930675

Re: 3D printed mirror array

#29

Post by jacquesm »

hobofan wrote: post #27
123pie123 wrote: post #18

Earlier quoted context omitted.

like the idea but how much sun does london really get?

Enough to allow a skyscraper to melt cars[0]. [0]: https://www.bbc.com/news/uk-england-london-23930675

That's a bit of a special case though, at 50 suns or so it doesn't require much for that effect. Great demo for solar concentrators though!

Re: 3D printed mirror array

#30

Post by jacquesm »

What an absolutely amazing piece of work, and even more incredible that it worked the first time. If I had to do something like that it would take me at least three tries to get it to work and quite possibly more than three. Math, 3D printing, love, what's not to like :)

And congratulations!

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