Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

3D printed mirror array

github.com

Post reply on HN
Print view View original

131–140 of 152 posts

Re: 3D printed mirror array

#131

Post by OJFord »

Toxygene wrote: post #39
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 :-)

Word of warning: https://en.wikipedia.org/wiki/Aqua_Teen_Hunger_Force#2007_Bo...

Main article link made a lot more sense to me, having never heard of it (or ATHF) before:

https://en.wikipedia.org/wiki/2007_Boston_Mooninite_panic

Re: 3D printed mirror array

#132

Post by tdrdt »

wopsahl wrote: post #102

Has anyone seen the mirror array that was built with ~2"X2"stainless steel mirrors that are attached to a sheet of blue spring steel that was laser cut as a compliant mechanism for each mirror so when an offset wheel on a threaded bolt behind the mirror is turned it progressively tilts the mirror from a minimal angle to a maximum angle? Each bolt was then driven using a single stepper motor(one mirror adjustment moto…

I have been thinking about this for some time: cylinders each attached to a motor. The glossy end of the cylinders is cut at an angle. The rotation of each cylinder dictates from which direction light is reflected.

Re: 3D printed mirror array

#134

Post by numpad0 »

michaelt wrote: post #118
numpad0 wrote: post #111

Earlier quoted context omitted.

There are single solution spray-on electroless plating "paint" for modelmaking. They can make any smooth and black surface into a mirror so I think it's just a matter of surface preparations.

Can they actually produce a mirror you could mistake for a glass mirror? I assume if your mirror is "only" as good as as the shiny side of some aluminium foil, you can't project things with any detail.

Isn't the mirror surface effectively at the aperture in this system...

Re: 3D printed mirror array

#135

Post by tomaskafka »

At a risk of spoiling a startup idea, I'd love a set of motorized mirrors I could put on a roof of a house on the other side of the street from me, that would send sunlight to the eastern side of my flat during the afternoon :).

Re: 3D printed mirror array

#136

Post by mym1990 »

tomaskafka wrote: post #135

At a risk of spoiling a startup idea, I'd love a set of motorized mirrors I could put on a roof of a house on the other side of the street from me, that would send sunlight to the eastern side of my flat during the afternoon :).

It’s like the Uber of renting other peoples roofs! (I’ve been watching way too much shark tank the past 3 days…)

Re: 3D printed mirror array

#137

Post by mym1990 »

diplodocusaur wrote: post #34

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

I’ve always been interested in making large works of art out of many many small things(LED cubes, wooden blocks, etc…). Would love to explore these kinds of things more

Re: 3D printed mirror array

#140

Post by mlok »

m4rtink wrote: post #122
mlok wrote: post #44

Earlier quoted context omitted.

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. :)

I also had the chance to see it, and I agree with you : impressive. Glad to know it is still evolving.
Post reply on HN