Meet the B2: a 3D printed bat robot with a microprocessor-based onboard computer, 6DOF IMU sensor package, 5 DC motors, carbon-fiber frame, silicone based membrane wings, and 3D printed parts to mimic movements of a bat. The whole package weighs only 92 grams.
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B2 (3D-Printed Bat Robot) Closed-Loop Flight Control Update (2016 IEEE ICRA)
By replicating bat flight patterns, these robots are expected to have longer battery life than regular quadcopters and helicopters. You can find out more about robot bats here.
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