Matthew Borgatti has built an air-powered, 3D-printed robot tentacle that waves in a friendly fashion and lends a helping hand. It is in no way erotic. Nuh-uh, not at all.
Print Your Own Robot: Part 6
So, with a very nice looking tentacle in hand, it was time to start experimenting with robotic air control. I believe I’ve found a system that works in a pretty simple and straightforward way. It still needs some work when it comes to the programming end, but I think the mechanics are well sorted. The idea is to pulse air into the tentacle using a solenoid valve, and have a constant bleed on the line so that flex will entirely be controlled by how long the valve stays on. It’s sort of a low frequency PWM. I’d like to get this working using a visual interface in Processing but, given how little I program, progress has been slow. I’ve got a thread on Adafruit with what I’ve come up with. In the meanwhile, you might like to check a rough video of the trefoil inflating.
After years of missteps, blunders and disasters in which Youtube users have been censored through spurious copyright claims or had their accounts deleted altogether, Google has announced an amazing, user-friendly new initiative though which it will fund the legal defense of Youtube creators who are censored by bad-faith copyright infringement claims.
Gus writes, “November 2-6 was Media Literacy Week, that great traditional festival of questioning everything we read and talking back to the TV. OK, so it’s only ten years old… and this is the first year it’s been formally observed in the United States, which has long lagged behind other English-speaking countries in media literacy […]
The Wizard of Northampton in dialog with John Higgs, author of Stranger Than We Can Imagine: Making Sense of the Twentieth Century, describing HP Lovecraft’s curious, twisted grasp of the awful anxieties of 20th century America, and how this created the racist, horror-flecked prose that resonates even today. (via m1k3y)
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This minimalist multi-tool will see to it that instead of rocking a tool belt, you’ll carry just one. It’s shaped slightly like a key and weighs less than an ounce, so it plays nice with your keychain. The strong surgical-grade stainless steel blade will last, and is handy for everyday tasks like opening boxes and […]
The Code Black is our top-selling drone of all time—and for good reason. This powerful, palm-size drone is not only insanely fun to fly, but can capture some serious video footage from up above. With a flight time of about 10 minutes and an ultra-smooth ride, it’s a great introductory drone for anyone looking to […]