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Preview: Hack a Day

Hackaday



Fresh hacks every day



Last Build Date: Sat, 01 Oct 2016 17:26:05 +0000

 



Oculus Pivrwd5gnr1

Sat, 01 Oct 2016 17:01:24 +0000

[WayneKeenan] wrote a proof-of-concept virtual reality system that used a Raspberry Pi and an Oculus Rift. It was about a thousand lines of Python and with a battery pack it was even portable. The problem was that the Pi was struggling to create the 3D views.

[Wayne] recently revisited the demo and found that just about everything has gotten better: the Pi 3 is faster, and the Python libraries have become better. He spent some time building a library — VR Zero — and then recreated the original demo in 80 more lines of Python. You can see a video, …read more

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Portable Lightweight Foundryportable-foundry-coverGerrit Coetzee

Sat, 01 Oct 2016 15:31:02 +0000

[Makercise] is getting ready for Maker Faire. One of the things he’d really like to do is some casting demonstrations. However, he has no desire to take his expensive and heavy electric kiln based foundry to Maker Faire. So, he made his own.

He got into metal casting during his excellent work on his Gingery lathe series. He started off by modeling his plan in Fusion 360. He’d use a 16qt cook pot turned upside down as the body for his foundry. The top would be lined with ceramic fiber insulation and the lid made out of foundry cement. He …read more

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Riding Rollercoasters with 3D Printed Kidneys, Passing Stones6bd9d0e8chexagon5un

Sat, 01 Oct 2016 14:01:16 +0000

Citizen science isn’t limited to the nerd community. When medical professionals get a crazy idea, their options include filling out endless paperwork for human consent forms and grant applications, or hacking something together themselves. When [David Wartinger] noticed that far too many of his patients passed kidney stones while on vacation, riding rollercoasters, he had to test it out.

Without the benefit of his own kidney stones, he did the next best thing: 3D printed a model kidney, collected some urine, and tossed a few stones that he’d collected from patients into the trap. Then he and a colleague rode …read more

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Tiny Pipe Organ Needs Tiny Churchmainbryancockfield

Sat, 01 Oct 2016 11:01:39 +0000

There are a lot of unusual listings on eBay. If you’re wondering why someone would have a need for shredded cash, or a switchblade comb, or some “unicorn meat” (whatever that is), we’re honestly wondering the same thing. Sometimes, though, a listing that most people would consider bizarre finds its way to the workbench of someone with a little imagination. That was the case when [tinkartank] found three pipe organ pipes on eBay, bought them, and then built his own drivers.

The pipes have pitches of C, D, and F# (which make, as far we can tell, a C add9 …read more

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When LEGO Flieslegodronewd5gnr1

Sat, 01 Oct 2016 08:01:43 +0000

Building your own drone is a common enough pursuit among Hackaday readers. There are quite a few LEGO enthusiasts around, too. A company named Flybrix wants to marry those two pursuits and is offering a kit that allows you to build your drone out of LEGO bricks.

The company isn’t affiliated with LEGO. The kits look like they have some pretty common motors and control hardware. There are a few custom pieces, but the real key appears to be a LEGO compatible mount for the motors. You can see a video about the kit, below.

Naturally, this being Hackaday, we …read more

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Hackaday Prize Entry: Crowdsourced Tactile Interfacesbraille2brianbenchoff

Sat, 01 Oct 2016 05:00:59 +0000

Your microwave, your TV, and almost the entire inventory of Best Buy have one thing in common: they all uses membrane switches for user interaction, and that means these devices are inaccessible for the blind. This project for the Hackaday Prize is going to change that by building a crowdsourced effort to design Braille keypads for thousands of appliances.

There are two aspects of this project that are exceptionally interesting, the least of which is how to make Braille keypads for a microwave. This is done with a 3D printer using a flexible or semi-flexible filament. These keypads are designed …read more

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Making an Espresso Pot In the Machine Shop2016-09-25_19h17_00Gerrit Coetzee

Sat, 01 Oct 2016 02:00:00 +0000

[This Old Tony] was cleaning up his metal shop after his yearly flirtation with woodworking when he found himself hankering for a nice coffee. He was, however, completely without a coffee making apparatus. We imagine there was a hasty round of consulting with his inanimate friends [Optimus Prime] and [Stefan Gotteswinter Brush] before he decided the only logical option was to make his own.

So, he brought out two chunks of aluminum from somewhere in his shop, modeled up his plan in SolidWorks, and got to work.  It was designed to be a moka style espresso pot sized around both …read more

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