Nifty 3D Printed Flexible Robotic Finger
Check out this remarkable 3D printed robotic shape memory finger inspired by ... wait for it ... our very own human fingers.
(3D printed shape memory finger [2 leftmost])
Most robotic applications that contain shape memory alloy (SMA) actuators use the SMA in a linear or spring shape. In contrast, a novel robotic finger was designed in this paper using SMA plates that were thermomechanically trained to take the shape of a flexed human finger when Joule heated. This flexor actuator was placed in parallel with an extensor actuator that was designed to straighten when Joule heated.
The best of these three SMAs was able to apply a maximum fingertip force of 9.01N on average. A 3D CAD model of a human finger was used to create a solid model for the mold of the finger covering skin. Using a 3D printer, inner and outer molds were fabricated to house the actuators and a position sensor, which were assembled using a multi-stage casting process. Next, a nonlinear antagonistic controller was developed using an outer position control loop with two inner MOSFET current control loops. Sine and square wave tracking experiments demonstrated minimal errors within the operational bounds of the finger.
Although we're all familiar with robotic fingers, I guess I'd go back to the tentacle robots from HG Wells' amazing 1898 novel War of the Worlds to find some early thinking on the idea of a truly flexible biomimetic robotic member.
In case you missed by 2005 story on TerminatorBot CRAWLER robot, you might check it for another science fictional reference to robotic fingers.
From Anthropomorphic finger antagonistically actuated by SMA plates via KurzweilAI.
Scroll down for more stories in the same category. (Story submitted 10/5/2015)
Follow this kind of news @Technovelgy.
| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
you like to contribute a story tip?
Get the URL of the story, and the related sf author, and add
Comment/Join discussion ( 0 )
Related News Stories -
Robot Buddhist Priest Chants, Drums
'He crossed the waiting room to the Padre booth...' - Philip K. Dick, 1969.
X2-VelociRoACH Cooperates To Launch Tiny Drones
Little robots cooperating can do big tasks. Eventually.
An 'Ethical Black Box' For Robots?
Explored by science fiction authors.
Kino Project Roaming Personal Fashion Robots
'Most of the crew have the tiny imp ride on their shoulder...' - Robert Forward, 1985.
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
Biggest HiSeas 'Mars Mission' Problem? No Internet
I think sf writers have this covered!
Clever Electric Truck Generates More Power Than It Uses
Better than a fictional electrotruck!
Eden-ISS, Greenhouse In Antarctica
'With this kind of light we could get the gardens going again."
Make Space Tools On The Spot (Like Moties)
'A moment ago it was squeezing silver toothpaste in a ribbon...'
Will Robots Be Moral If We Raise Them Like Our Children?
'The birth of Machine, my robot child...'
Foldable Galaxy Phones, I Swear They're Coming (Maybe)
How hard can it be?
Bacteria Behave Differently In Space
'The Republic struggled to control its Sours...'
Brain Connected To Internet - ‘Brainternet'
Artificial Spider Silk
You can also use it to make a roof - on an asteroid.
MIT Tunes Ions For Frictionless Surface - Superlubricity!
'My telelubricator here neutralizes the interatomic bonds the surface of any solid...'
Seiko Astron Always Knows Your Time Zone
'Harrington glanced at his wrist watch - a bulky affair - and whistled.'
Robot Buddhist Priest Chants, Drums
'He crossed the waiting room to the Padre booth...'
Koniku Kore, Mouse Brain-Based Chip, Detects Explosives
'As a matter of fact, this mouse is going to keep on thinking forever.'
CNH Industrial Autonomous Tractor Concept Video
'...the tiny red glints of self-guided tractors.'
The Neuroon Open Sleep Tracker For Lucid Dreaming
'Leads trail away from insertion points on her face and wrist... to a lucid dreamer on the bedside shelf.'
Siri Now Smoother, Perkier (Thanks, Deep Learning!)
'Good morning, Dr. Chandra. This is Hal.'
More SF in the News Stories
More Beyond Technovelgy science news stories