Live data from Hacker News

3D printed mirror array

github.com

121–130 of 152 posts

Re: 3D printed mirror array

#121
post #90

Earlier quoted context omitted.

"The electronics and the mechanics and the fabrication took me a year. Then it took me an afternoon to program the computer to actually activate it"

No knock on the artist, I particularly like the pom-pom display, but I get the sense that much of art today is about going roundabout ways, almost Rube Goldberg machine like, to achieve things could be presented in other ways with minimal effort. Sometimes this alternative mediation is interesting, but sometimes it almost feels dismissive of the metaphysical magic that is computing.

A lot of art is about "the process".

I mean, the resulting painting as done by Pollock or Mondriaan is pretty silly. Just splash some paint in a canvas, or draw some lines and use the "fill bucket tool" to create colored squares, right?

Re: 3D printed mirror array

#122
post #44

There is an artist (at least) that uses arrays of motorized parts to create a similar effect https://www.youtube.com/watch?v=kV8v2GKC8WA mesmerizing

This is quite close too : https://prusalab.cz/projekty/reflexe/ (Petr Vacek & Adam Cigler / Prusalab / Czech Republic)

I saw this on an industry fair and even spoke with one of the authors - its very impressive and cleverly done + they are continuously improving it. :)

Re: 3D printed mirror array

#125

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!

20 hours into printing the final mirror array frame he realized it was backwards and would have displayed "?EM YRRAM". So he had to scrap that and restart his print. So let's call that a try. ;-)

Re: 3D printed mirror array

#126

There is an artist (at least) that uses arrays of motorized parts to create a similar effect https://www.youtube.com/watch?v=kV8v2GKC8WA mesmerizing

These isn't a similar effect but your link is very cool. I think the magic here is a static array of mirrors printed to create an image on another surface from multiple reflections of a bright source light.

Re: 3D printed mirror array

#127
post #121

Earlier quoted context omitted.

No knock on the artist, I particularly like the pom-pom display, but I get the sense that much of art today is about going roundabout ways, almost Rube Goldberg machine like, to achieve things could be presented in other ways with minimal effort. Sometimes this alternative mediation is interesting, but sometimes it almost feels dismissive of the metaphysical magic that is computing.

A lot of art is about "the process". I mean, the resulting painting as done by Pollock or Mondriaan is pretty silly. Just splash some paint in a canvas, or draw some lines and use the "fill bucket tool" to create colored squares, right?

Yes, sure, it's about the process and about the inescapable context with postmodern conceptual art. Whether it's mere splashes I will leave aside, but Pollock and Mondrian precisely brought the consideration of the process to a new light, that's part of what makes them significant figures. Mondrian didn't have mspaint.exe, those geometries meant something different at the time. Also, I don't think Picasso would have been so infatuated by cubism if computers with triangle mesh rendering and solid modeling had been around.

Re: 3D printed mirror array

#129
post #41

I'm wondering if a similar effect couldn't be done using a continuous surface and just silvering it. I saw something similar done with refraction but can't remember the URL now. 3D printers definitely have higher resolution than mirrors of this size.

I don't think so; the angling of the mirrors is done with small steps, which the mirrors smooth out.

If you apply a very thin film, it will just follow the steps.

Re: 3D printed mirror array

#130
post #97

Earlier quoted context omitted.

I've never actually been scared of stuff I built before, that's a first (and that doesn't mean that I shouldn't have been scared with other projects, just that I wasn't either because I wasn't aware they were dangerous or simply too absorbed to stop and think about it).

Wait what did you build?

It's up:

https://news.ycombinator.com/item?id=29198205

Post reply on HN