From IEEE Spectrum

Here's a quadrotor with giant spindly bird legs from the Utah Telerobotics Lab. It's a passive system which uses the weight of the robot to actuate the grippers, so that when the quadrotor lands on something it latches on and stays. To release, the robot just lifts off, and the grippers let go. Birds use a very similar system to keep themselves perched while asleep, and the leg and toe design was inspired directly by songbirds.

Utah Telerobotics Lab ]

Here's it flying:

Views: 893

Comment by Dave Wicks on March 2, 2012 at 9:27am
Very cool! Can't wait to see the finished product when it's scaled down.
Comment by Daniel Hibben on March 2, 2012 at 10:14am

could be a little smaller, but i love the idea. there is great potential in this

Comment by Kevin Bouchard on March 2, 2012 at 8:19pm

Nice use of under-actuation for the grippers. Also using gravity as a power source. Sad we didn't see them landing on something worthwhile.

Comment by Rana on March 2, 2012 at 8:31pm

Excellent ! 

Comment by Mark Colwell on March 2, 2012 at 9:00pm

Look ma no servos!

But with a servo it could hold tight to catch a fish and fly away...


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