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based  clock  hackaday  inkjet  layers  led lamp  led  light based  mathematics  nixie  read  robotic  space odyssey  space  theremin  wood 
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Fresh hacks every day

Last Build Date: Tue, 20 Mar 2018 23:42:14 +0000


Curved Wood LED Lamp Needs No Fancy ToolsCurved Wood LED Lamp - Featureddp2cnk

Tue, 20 Mar 2018 23:00:00 +0000

Those of us who aren’t familiar with woodworking might not expect that this curved wood and acrylic LED lamp by [Marija] isn’t the product of fancy carving, just some thoughtful design and assembly work. The base is a few inches of concrete in a plastic bowl, then sanded and given a clear coat. The wood is four layers of beech hardwood cut on an inverted jigsaw with the middle two layers having an extra recess for two LED strips. After the rough-cut layers were glued together, the imperfections were rasped and sanded out. Since the layers of wood give a …read more

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Mystery Nixie Clock From 2001: A Space Odyssey, And PulsarPulsar nixie clock ala 2001: A Space Odyssey clockstevendufPulsar mystery clock2001: A Space Odyssey clock

Tue, 20 Mar 2018 20:00:19 +0000

Every now and then something old comes along which we’re surprised has never been on Hackaday. That’s especially the case here since it includes nixie tubes and is a clock, two things beloved here by many. Then again, it’s not a hack, but it just should be (hint hint).

This clock’s origins are a bit of a mystery. As detailed in [Asto_Vidatu]’s Reddit post, he found it when cleaning out his mother’s garage. Larger photos of the clock internals are on his imgur page and are sure to delight and intrigue you. It looks very much like a clock widely …read more

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Repurposing Inkjet Technology For 3D PrintingPrinterbrianbenchoff

Tue, 20 Mar 2018 18:30:21 +0000

You would be forgiven for thinking that 3D printing is only about plastic filament and UV-curing resin. In fact, there are dozens of technologies that can be used to create 3D printed parts, ranging from welders mounted to CNC machines to the very careful application of inkjet cartridges. For this year’s Hackaday Prize, [Yvo de Haas] is modifying inkjet technology to create 3D objects. If he gets this working with off-the-shelf parts, this will be one of the most interesting advances for 3D printing in recent memory.

The core of this build is a modification of HP45 inkjet print heads …read more

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Sophie Germain: The Mathematics of ElasticitySophieGermainbaggers

Tue, 20 Mar 2018 17:01:28 +0000

When a 13-year old Marie-Sophie Germain was stuck in the house because of the chaotic revolution on the streets of Paris in 1789, she found a refuge for her active mind: her father’s mathematics books. These inspired her to embark on pioneering a new branch of mathematics that focussed on modeling the real world: applied mathematics.

Post-revolutionary France was not an easy place for a woman to study mathematics, though. She taught herself higher maths from her father’s books, eventually persuading her parents to support her unusual career choice and getting her a tutor. After she had learned all she …read more

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NES Controller Slider-Based Light Thereminnes-theremin-800_featuredcornbreadninja

Tue, 20 Mar 2018 15:30:00 +0000

Having never use a 555 before, [lonesoulsurfer] decided that his first foray into the world’s most popular and versatile IC would be to use a 555 to make beautiful chiptunes. For that, we commend him. He found [Dean Segovis]’ Slidersynth light-based Theremin and got to work building his own version it and stuffing it into a (knockoff!) NES controller.

For the uninitiated, a Theremin is a touch-less synthesizer that uses human capacitance and a pair of antennae to control oscillation and amplitude. In a light-based Theremin such as this one, the oscillation is controlled by the intensity of photons from …read more

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Uber Has An Autonomous FatalityUber Self Driving Car in San Franciscowd5gnr1

Tue, 20 Mar 2018 14:00:52 +0000

You have doubtlessly heard the news. A robotic Uber car in Arizona struck and killed [Elaine Herzberg] as she crossed the street. Details are sketchy, but preliminary reports indicate that the accident was unavoidable as the woman crossed the street suddenly from the shadows at night.

If and when more technical details emerge, we’ll cover them. But you can bet this is going to spark a lot of conversation about autonomous vehicles. Given that Hackaday readers are at the top of the technical ladder, it is likely that your thoughts on the matter will influence your friends, coworkers, and even …read more

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3D Printing And Modelling With A Robot AssistantRoMA: Robotic modeling assistantstevendufThe parts: designer, AR headset, AR controller, rotating platform, robotic printer

Tue, 20 Mar 2018 11:00:00 +0000

[Huaishu Peng] and a group of other researchers have come up with a system that allows them to use virtual reality (VR) to model an object in a space in front of them while a robot simultaneously 3D prints that object in that same space, a truly collaborative effort they call the RoMA: Robotic Modelling Assistant. This is a step toward fixing the problem of designing something and then having to wait for the prototype to be made before knowing how well it fits the design goals.

How does the designer/robot collaboration work? The designer wears an Oculus Rift VR …read more

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