Whenever [MakerMan] hits our tip line with one of his creations, we know it’s going to be something special. His projects are almost exclusively built using scrap and salvaged components, and really serve as a reminder of what’s possible if you’re willing to open your mind a bit. Whether done out of thrift or necessity, he proves the old adage that one man’s trash is often another’s treasure.
We’ve come to expect mainly practical builds from [MakerMan], so the beautiful ceiling light which he refers to as a “Kinetic Chandelier”, is something of a change of pace. The computer controlled light is able to fold itself up like an umbrella while delivering a pleasing diffuse LED glow. He tells us it’s a prototype he’s building on commission for a client, and we’re going to go out on a limb and say he’s going to have a very satisfied customer with this one.
Like all of his builds, the Kinetic Chandelier is almost entirely built out of repurposed components. The support rods are rusty and bent when he found them, but after cutting them down to size and hitting them with a coat of spray paint you’d never suspect they weren’t purpose-made. The light’s “hub” is cut out of a chunk of steel with an angle grinder, and uses bits of bike chain for a flexible linkage.
Perhaps most impressive is his DIY capstan which is used to raise and lower the center of the light. [MakerMan] turns down an aluminum pulley on a lathe to fit the beefy gear motor, and then pairs that with a few idler pulleys held in place with bits of rebar welded together. It looks like something out of Mad Max, but it gets the job done.
Finally, he salvages the LED panels out of a couple of cheap work lights and welds up some more rebar to mount them to the capstan at the appropriate angle. This gives the light an impressive internal glow without a clear source when viewed from below, and really gives it an otherworldly appearance.
This isn’t the first time we’ve seen a hacker put together their own chandelier, or even the first time we’ve seen it done with scrap parts. But what [MakerMan] has put together here may well be the most objectively attractive one we’ve seen so far.
Continue reading “Beautiful Moving Origami Light Made from Scrap”
[Michal Zalewski] has radiation on the brain. Why else would he gut a perfectly-horrible floor lamp, rebuild the entire thing with high-power RGB LEDs, and then drive it with a microcontroller that is connected up to a Geiger-Müller tube? Oh right, because it also looks very cool, and Geiger tubes are awesome.
If you’ve been putting off your own Geiger tube project, and we know you have, [Michal]’s detailed explanation of the driver circuit and building one from scratch should help get you off the couch. Since a Geiger tube needs 400 volts DC, some precautions are necessary here, and [Michal] builds a relatively safe inverter and also details a relatively safe way to test it.
The result is a nice piece of decor that simultaneously warns you of a nuclear disaster by flashing lights like crazy, or (hopefully) just makes a nice conversation piece. This is one of the cooler Geiger tube hacks we’ve seen since [Robert Hart] connected up eighteen Geiger tubes, and used them to detect the direction of incoming cosmic rays and use that to compose random music (YouTube, embedded below).
[Michal] is also author of the most excellent Guerrilla Guide to CNC Machining and keeps good tabs on his background radiation.
Continue reading “Mood Lamp Also Warns of Nuclear Catastrophe”
SprayPrinter is a neat idea. You download a cellphone app, point the camera at a wall, and sweep the wall with a spray can fitted with a (Bluetooth? WiFi?) remote-controlled valve. The phone knows where the nozzle is, and sprays a dot whenever it needs to “paint” the picture of your choosing on the wall.
While we’re not sure that we have the patience to paint our walls this way, it’s a cool effect. But even more, we love the idea of using the cellphone camera for location sensing. Many robotics applications do just this with an overhead camera.
Of course, we’d love more detail about how it’s done, but it’s not hard to guess that it’s either a bit of machine vision in the phone, or simpler still, that the spray-can housing has IR LEDs inside that the phone can lock onto. Indeed, the prototype version of the product shown here does look like it has an LED on the opposite side from the orange nozzle.
It wouldn’t be hard to take this to the next level, by adding enough IR LEDs that the camera in your phone can sense orientation as well as location. Heck, by measuring the distances between LEDs, you could probably even get a rough measure of depth. This could open up the use of different nozzles.
Thanks [Itay] for the tip! Some images courtesy SprayPrinter, via designboom.