HOWTO convert an MP3 to a playable, 3D printed record

Instructables user Aandaghassaei has posted a HOWTO for making a 3D printed record that plays on a regular turntable. Her method converts any digital audio file to grooves ready to print. It’s a bit fuzzy, but still rather exciting! I’m waiting for the way when taking a snapshot of a vinyl disc can be the first step toward deriving its audio content, converting that back to a shapefile, and printing out a high-fidelity duplicate. In this Instructable, I’ll demonstrate how I developed a workflow that can convert any audio file, of virtually any format, into a 3D model of a record. This is far too complex a task to perform with traditional drafting-style CAD techniques, so I wrote an program to do this conversion automatically. It works by importing raw audio data, performing some calculations to generate the geometry of a record, and eventually exporting this geometry straight to the STL file format (used by all 3D printers). Most of the heavy lifting is done by Processing, an open source environment that’s often used for coding interactive graphics applications. To get Processing to export to STL, I used the ModelBuilder Library written by Marius Watz (if you are into Arduino/Processing and 3D printing I highly recommend checking this out, it works great). I’ve uploaded some of my complete record models to the 123D gallery as well as the Pirate Bay. Check Step 6 for a complete listing of what’s there and what I plan on posting. Alternatively, you can go to Step 7 to download my code and learn how to make your own printable records from any audio file you like. 3D Printed Record

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HOWTO convert an MP3 to a playable, 3D printed record

Hands-On With Intel’s “Next Unit of Computing” Mini PC

crookedvulture writes “Intel’s Next Unit of Computing has finally made its way into the hands of reviewers. The final revision is a little different from the demo unit that made the rounds earlier this year, but the concept remains the same. Intel has crammed what are essentially ultrabook internals into a tiny box measuring 4″ x 4″ x 2″. A mobile Core i3 CPU provides the horsepower, and there’s a decent array of I/O ports: USB, HDMI, and Thunderbolt. Users can add their own memory, storage, and wireless card to the system, which will be sold without an OS for around $300. Those extras raise the total price, bringing the NUC closer to Mac Mini territory. The Apple system has a bigger footprint, but it also boasts a faster processer and the ability to accommodate notebook hard drives with higher storage capacities than the mSATA SSDs that are compatible with the NUC. If Intel can convince system builders to adopt the NUC, the future of the PC could be a lot smaller.” Read more of this story at Slashdot.

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Hands-On With Intel’s “Next Unit of Computing” Mini PC

XBMC 12.0 Frodo Beta Brings Live TV, PVR Support, and More to Your Media Center

Windows/Mac/Linux/Others: XBMC is still our favorite customizable media center software around, and today you can download the beta of version 12.0 which adds live TV, PVR support, better AirPlay, and lots more to your home theater PC. More »

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XBMC 12.0 Frodo Beta Brings Live TV, PVR Support, and More to Your Media Center

This Creepy Facial Recognition System Knows How Often You Visit a Store

You might want to think twice about how often you hang out at your local Best Buy in the future. In Japan, NEC has developed a new facial recognition system geared towards retailers that determines the age and gender of shoppers, and tracks how long and how often they visit a given store. More »

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This Creepy Facial Recognition System Knows How Often You Visit a Store