A new kind of robot gripper?

Someone on Chief Delphi posted this video and I just had to share it. I’m not really sure how one would make a “granular jamming” hand in VEX, but who knows? :wink:
Video: http://www.youtube.com/watch?v=ZKOI_lVDPpw
Original CD Post: http://www.chiefdelphi.com/forums/showthread.php?p=1175001


Here is the link to a 2010 online article on this “universal gripper” where its inventors describe how it works.

I think it was 2006 or 2007 when I first saw that kind of end effector. Good to see someone is still working on it. And it IS cool

It’s so cool, you might call it The New Cool! :smiley:

To make one in VEX one might simply take appart a Vex Sack then wrap it with insanely thin yet strong film that would be taken from the Lexan sheet. :smiley:

  • Andrew

This was discussed last year over on this thread. I was able to make an effective gripper in just a couple hours using just a funnel, a balloon, some coffee grounds, and plastic tubing (all standard MacGyver ingredients).

The only issue I recall was that it required significant force to get the gripper to conform to the shape. So, anything that is easily crushed or has to be picked up from the side would probably be challenging. Still, it was very cool.


  • Dean

If only sacks were legal VRC parts…

You could still get the same effect by grinding down an entire piece of VEX metal and using the filings as grains, inside the thin film of Lexan. That way, it would be competition legal!