Exoskeleton hackaday electricity worksheets high school


While medical facilities continue to improve worldwide, access to expensive treatments still eludes a vast amount of people. Especially when it comes to prosthetics, a lot of people won’t be able to afford something so personalized even though the need for assistive devices is extremely high. With that in mind, [Guillermo Herrera-Arcos] started working on ALICE, a robotic exoskeleton that is low-cost, easy to build, and as an added bonus, 100% Open Source.

ALICE’s creators envision that the exoskeleton will have applications in rehabilitation, human augmentation, and even gaming. Also, since it’s Open Source, it could also be used as a platform for STEM students to learn from. Currently, the team is testing electronics in the legs of the exoskeleton, but they have already come a long way with their control system and getting a workable prototype in place. Moving into the future, the creators, as well as anyone else who develops something on this platform, will always be improving it and building upon it thanks to the nature of Open Source hardware.

When we think of exoskeletons, we tend to think along comic book lines: mechanical suits bestowing superhero strength upon the villain. But perhaps more practical uses for exoskeletons exists: restoring the ability to walk, for instance, or as in the case of these exoskeleton shorts, preventing hip fractures by detecting and correcting falls before they happen.

Falls and the debilitating injuries that can result are a cruel fact of life for the elderly, and anything that can potentially mitigate them could be a huge boon to public health. Falls often boil down to loss of balance from slipping, whether it be a loose rug, a patch of ice, or even the proverbial banana peel. The “Active Pelvic Orthosis” developed by [Vito Monaco] and colleagues seeks to sense slips and correct them by applying the correct torque to the hip joints. Looking a little bulky in their prototype form and still tethered to an external computer, the shorts have motors with harmonic drives and angle sensors for each hip, plus accelerometers to detect the kinematic signature of a slip. The researchers discovered that forcing the leg that slipped forward while driving the stable leg back helped reduce the possibility of a fall. The video below shows the shorts in action preventing falls on a slip-inducing treadmill.

Sometimes a project comes our way which has so much information contained in it as to be overwhelming, and on which it is difficult to know where to start. A good example is [Barry Armstead]’s Iron Man suit, to which we were introduced through a very long forum thread that spans several years.

Home-made armour is a staple of the cosplay world, with many astoundingly good creations being produced by fans. What makes [Barry]’s Iron Man suit stand out from the crowd is its construction; instead of fiberglass or vacuum-formed plastic he’s used real metal. (It’s steel. But steel contains iron, right? We’re calling poetic license.)

The best place to follow progress on the suit is probably [Barry]’s YouTube feed, in which he has so far racked up 44 build logs. We see joint articulation tests, early test walks, the iconic helmet taking shape, and the repulsor simulated with a nano sprayer. With so many videos to watch, you’ll be there quite a while. The one we’ll leave you with below the break is fairly straightforward, the first look at the entire exoskeleton in bare metal.