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MIT Wrist-Robot Adds Extra Fingers

One hand is better than two
7/18/2014 06:45 PM EDT
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Olaf Barheine
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The next step?
Olaf Barheine   7/19/2014 7:03:38 AM
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My first thought was that this could be very useful for people who have only one healthy hand in order to make their daily life easier. But for that purpose it should be also possible to put the device on or to remove it easily with only one hand without support. Maybe this could be the next step. 

_hm
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With extra fingers it is not wrist
_hm   7/19/2014 9:05:40 AM
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If you add multiple fingers to wrist, it should not be called wrist. Human wrist has only four fingers and thumb.

Is it difficult to get proper word for it?

 

R_Colin_Johnson
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Re: The next step?
R_Colin_Johnson   7/19/2014 12:48:45 PM
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Your are a very thoughful guy. There would have to be an "attach" mode where you push a button, lay your wrist down in the "cradle" and have it automatically attach itself. Sound reasonable?

R_Colin_Johnson
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Re: With extra fingers it is not wrist
R_Colin_Johnson   7/19/2014 12:50:32 PM
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Can't think of another word off hand, but don't some animals have a different number of fingers and no thumb?

betajet
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Re: With extra fingers it is not wrist
betajet   7/19/2014 1:34:36 PM
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hm wrote: Human wrist has only four fingers and thumb.

Unless you're the evil Count Rugen.  "Hello.  My name is Inigo Montoya.  You keel' my father.  Prepare to die!"

Seriously, isn't it called the Wrist-Robot because it's attached to your wrist?  Besides, my fingers aren't attached directly to my wrist: finger-bones connected to the hand-bone, hand-bone connected to the wrist-bone, wrist-bone connected to the arm bone, etc.

 

_hm
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Re: With extra fingers it is not wrist
_hm   7/19/2014 1:40:05 PM
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Perhaps manipulator (with six or seven fingers).

BTW, MIT should achieve what they wanted with four fingers + thumb. That is what human evolution teaches.

 

LarryM99
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Dual Feedback
LarryM99   7/21/2014 4:49:35 PM
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It seems like ideally there should be a dual feedback loop in this. Are they working on sense feedback from the robotic digits to the human as well as force control of the robotics by the human? I am thinking of cases where I am holding a soft-drink cup when the seal on the lid pops and the cup collapses. Human reflexes can (sometimes) detect this quickly enough to tighten the grip and catch the cup before it gets dropped.

Larry M.

R_Colin_Johnson
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Re: Dual Feedback
R_Colin_Johnson   7/21/2014 10:34:46 PM
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Larry, I sent the author your comment about haptic feedback to keep from crushing the cup and he said at this stage that is just one of many many concerns to research. In his words: "We are working on multifaceted control and communication issues. Reflex is one important issue. We are still In an early stage. Wearing extra limbs poses a lot of fundamental issues for long lasting research interest."

mat_john
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Touch/force recognition
mat_john   7/22/2014 12:33:39 AM
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I think this will open up a new are of research which studies how we apply mechanical force, sort of 'touch recognition' like gesture recognization. I think this could be important to future developments in robotics?

Sheetal.Pandey
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Re: Touch/force recognition
Sheetal.Pandey   7/22/2014 4:03:06 AM
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This robotic arm would prove very useful for those who like to work more hours and n many things at the same time. Manytimes you feel if there is an extra arm it will be so helpful. I remember my child asking me why cant you have few extra arms so you can finish all the work fast.

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