Infinity Mirror with a Convex Mirror

Also: The Infinity Mirror Pumpkin (2013)

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13 WS2812 LEDs powered by an ATTiny85, and housed under the glass and bezel from a cheap clock. Tinting for the half-mirror effect is provided by two layers of antistatic bagging. You can see more pictures of the setup on the page for my Arc Reactor project.
  • 1 × ATTiny MCU
  • 1 × Circle of glass + bezel Got mine from a small clock.
  • 1 × Pumpkin Optional
  • 13 × WS2812 LEDs
  • 1 × Two layers of antistatic bag for tinting Or you could buy several square feet of the real stuff...

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Keith Olson wrote 02/08/2015 at 20:57 point

If you want to know the true power of mylar, check these out:

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Gertlex wrote 02/08/2015 at 21:32 point

Sweet. We used mylar (I assume) for parabolic carbon fiber concentrator mirrors for the solar car I worked on in undergrad. We never quite got that good of a finish. Putting the mylar on e.g. balloon rubber and anchoring that would be a fun experiment.

Another thought is I wonder if muscle wire could be used behind that, for a more compact setup than pneumatics.

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Keith Olson wrote 02/08/2015 at 22:36 point

The biggest problems I see with muscle wire instead of a cylinder and piston would be a) it would only pull wherever it was attached, instead of a smooth curve and b) it wouldn't be able to go convex. The cylinder(s) and piston(s)

can be mounted anywhere and connected to the pressure chamber via tubes. You could even build multiple cylinders on edge into the frame.

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Gertlex wrote 02/08/2015 at 22:41 point

It would be convex in the off state. But in general, it would look "ribbed" probably.

Alas, I've already got to many projects I want to work on, and failing to focus on even one of them :P

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Keith Olson wrote 02/08/2015 at 22:54 point

I know what you mean. I'm part of the startup of a local makerspace/incubator, and all I'm probably going to be spending the better part of the next year designing and building tools. (...and tools to make tools.)

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Keith Olson wrote 02/08/2015 at 06:09 point

Even better: make the back mirror a sheet of mylar, with a cylinder and piston behind it. As a motor slides the piston back and forth, the changing air pressure will cause the mylar to go from concave to convex to concave.

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Gertlex wrote 02/08/2015 at 06:22 point

Nice... My knowledge of optics is too fuzzy to be able to say how different the effect would be with a mirror, vs a simple reflective surface.

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darkrose0016 wrote 04/14/2014 at 16:02 point
ba a mire with lights makes it give the impreshon it is an endless hole

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