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.
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.
Print Your Own Robot: Part 6
It's been five years since Ta-Nehisi Coates's groundbreaking The Case for Reparations ran in The Atlantic; yesterday, Coates appeared before Congress to celebrate Juneteenth with a barn-burning statement that starts as a response to Mitch McConnell's dismissal of racial injustice in America, but quickly becomes more than that -- a Coatesian masterclass in understanding race, […]
Deviant Ollam runs a physical security penetration testing company called The Core Group; in a flat-out amazing, riveting presentation from the 2017 Wild West Hackin' Fest, Ollam -- a master lockpicker -- describes how lockpicking is a last resort for the desperate, while the wily and knowledgeable gain access by attacking doors and locks with […]
Philadelphia's Mutter Museum (previously) is one of my favorite museums in the world: built from the private collection of pathologist Dr Thomas Dent (who aggregated the collections of many other pathologists), it is a solemn and moving place to see the incredible breadth of human physiognomy and pathology.
Looking for a new tablet? If you haven’t upgraded in a while, it might be time to check out the latest iPad Pro for two very good reasons. First, the 2018 model is a real workhorse. The 12X Bionic chip processor means it can handle any task you set out for it, and still have […]
You want wireless earbuds to make an impact on your mood and workout, not the environment. If that’s the case, we’ve got a new contender for AirPod market share: Brio Phantom X7 True Wireless Earbuds. The features on these tiny, comfortable buds are impressive even without the environmental angle. Their Bluetooth 5.0 connectivity is good […]
We don’t ask for much out of our charging cables: Juice up our phone, do it fast and don’t break. It’s supposed to be simple, but keeping your phone plugged in for the night – as most of us do – can actually degrade the life of your battery by overheating it. That’s why one […]