Robotic Arm Writes, Draws, Grasps Objects Without Fingers
October 26, 2010 11:30 AM
Robotic arm with grain-filled sack instead of fingers
(Source: John Amend)
"Universal gripper" eliminates the need to program individual joints
University of Chicago
researchers have designed a robotic arm that is capable of performing every day tasks such as writing, drawing and serving drinks. But what makes this robotic arm special is that it can
complete these common tasks without fingers
Eric Brown, lead author of the study and a physicist at the University of Chicago in Illinois, along with John Amend, co-author of the study and an engineering student at Cornell University, have designed and developed a
robotic arm that can grasp
and control household objects without the use of fingers.
While fingers and thumbs are necessary for humans to pick up a glass of water or write with a pen, Brown explains that fingers and thumbs on a robot would be more difficult than helpful. The fingers would require a computer to manipulate several individual joints, and in the past, robots have sometimes proved to be sloppy with the use of their fingers. Sometimes the
robots grip too hard
and break the item they're holding, and other times they don't grip the item very well at all and drop it.
But now, Brown and Amend have created a "universal gripper" that omits the use of fingers completely on a robotic arm. Instead, there is a small rubber sack at the end of the arm which contains small glass spheres or
. When the rubber sack touches a desired object, a pipe sucks air from the sack in order to mold the rubber sack to the object's shape and cause it to contract. The contraction is a one percent change in volume, but it is enough to grab most items.
The idea of using a grain or rubber sack is not new, though. However, Corey O'Hern, a physicist at Yale University who did not participate in this study, did mention that this is the first time a study had been completed with so much detail and proper testing.
"This seems like a much better way to go," said O'Hern.
Amend notes that the universal gripper's greatest advantage is its versatility, but adds that it has some trouble picking up flat objects, porous objects and objects bigger than half its size. But despite these limitations, Amends says "as long as the gripper can fold about one-fourth of the object's surface, it can pick up just about any shape thrown in its path."
O'Hern offered advice in regards to the gripper's problem with picking up certain objects, saying that Brown and Amend should make the sack stickier. But on that same note, having the gripper let go of an object would be more difficult that way.
Brown and Amend hope the fingerless robotic arm can be used
in the future. This particular design, with a little work, could improve the way tens of thousands of patients in the United States function on a daily basis, and without having to control eight individual fingers and two thumbs, using this robotic arm would be simple.
was published in
Proceedings of the National Academy of Sciences
"A politician stumbles over himself... Then they pick it out. They edit it. He runs the clip, and then he makes a funny face, and the whole audience has a Pavlovian response." -- Joe Scarborough on John Stewart over Jim Cramer
Researcher Allows Robot to Punch Colleagues During Lab Experiment
October 15, 2010, 6:00 PM
Study Observes if Babies See Robots as Sentient or Inanimate Objects
October 14, 2010, 7:30 PM
Human Testing to Begin on Mind-controlled Prosthetic
August 9, 2010, 6:45 AM
Whiffing is a Hit Worldwide, Coffee Whiffing is the Latest Craze
April 1, 2010, 9:50 AM
PIQ ROBOTTM reveals its new artificial intelligence software
November 29, 2016, 12:59 AM
One more time - Happy Thanksgiving to Everyone Around the World
November 24, 2016, 4:00 AM
Google’s Smart Contact Lens Project gets halted for 2016
November 20, 2016, 7:00 AM
Cell Research Study shows African Americans have greater immune response to infection
November 10, 2016, 1:00 AM
UTHealth Clinical Trial Shows Progress Using Stem Cells to Treat Traumatic Brain Injury
November 8, 2016, 1:00 AM
Uber Partners with Circulation to Pilot Program Connecting Transportation and Digital Health Care
November 6, 2016, 5:00 AM
Most Popular Articles
What is the Apple’s iPhone 8 specifications and release date?
April 14, 2017, 5:43 AM
Meet the Smartphone with four cameras - Alcatel Flashphone
April 5, 2017, 11:20 AM
Vivo V5 Plus – the Selfie Softlight is on You.
April 17, 2017, 7:05 AM
Moto G4 Plus - Powerful Unlocked Convenience
April 12, 2017, 6:25 AM
Microsoft releases details of Project Scorpio console
April 7, 2017, 7:50 AM
Latest Blog Posts
Sound Bars and the Costs?
Apr 23, 2017, 6:30 AM
Link your Brain to Your Computer – In Four Years…Maybe
Apr 22, 2017, 7:03 AM
Google Home can now identify users by their voice.
Apr 21, 2017, 7:15 AM
Amazon Lex – Now Available for Developers.
Apr 20, 2017, 6:58 AM
You can now use Instagram offline on your Android Smartphone
Apr 19, 2017, 8:00 AM
Now you can livestream to YouTube from your mobile device.
Apr 18, 2017, 8:05 AM
Google Home – Is It a Spy Device?
Apr 17, 2017, 7:30 AM
Apple added to self –driving test permit list
Apr 15, 2017, 6:21 AM
Project Scorpio – Coming on June 11
Apr 14, 2017, 6:20 AM
Looks Like Samsung Has Been Forgiven.
Apr 13, 2017, 6:50 AM
United Airlines - Blasted on China’s Social Network and the Stock Market
Apr 12, 2017, 6:50 AM
Amazon's Third-Party Sellers Hacked
Apr 11, 2017, 6:25 AM
Microsoft Surface Pro5 Details Revealed
Apr 9, 2017, 6:41 AM
Own An Android Phone? Then you could be hacked over Wi-FI
Apr 7, 2017, 6:47 AM
Apple confirms iOS 10.3 bug and its effect on iCloud Services
Apr 6, 2017, 6:30 AM
Apple Rolls Out New Version of Apple Music
Apr 5, 2017, 10:35 AM
Apple in the News
Apr 4, 2017, 9:03 AM
Apple iPhones Will Soon Feature Graphics Chips Designed BY Apple
Apr 3, 2017, 6:23 AM
AMD Ryzen Desktop Processors Performance
Apr 2, 2017, 6:30 AM
What makes a camera Lensless?
Apr 1, 2017, 7:45 AM
Google halts Android Wear 2.0 Update Due to Bug
Mar 31, 2017, 7:27 AM
Uber Technologies Inc Driverless Car hit by Human-driver
Mar 30, 2017, 8:00 AM
More Blog Posts
Copyright 2017 DailyTech LLC. -
Terms, Conditions & Privacy Information