A more comfortable robotic prosthetic leg

July 15, 2020

A new robotic prosthetic leg prototype offers a more natural gait while also being quieter and more energy efficient than other designs. 

The key is the use of new small and powerful motors, originally designed for a robotic arm on the International Space Station. The streamlined design offers a free-swinging knee and regenerative braking, which charges the battery with energy captured when the foot hits the ground. This feature enables the leg to more than double a typical prosthetic user’s walking needs with one charge per day.

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Roofing drone nails down shingles

September 23, 2019
The roofing octocopter, equipped with a nail gun, is parked near the mock roof. By setting the wooden panel at different inclines, the researchers simulated roofs with different slopes. Image credit: Matthew Romano, Michigan Robotics.

An octocopter capable of attaching asphalt shingles to roofs with a nail gun has been demonstrated at the University of Michigan’s M-Air, an outdoor autonomous system testing lab.

This aerial vehicle can position the nail gun, place the nail, and move to the next point without needing a human at the controls.

“For me, the biggest excitement of this work is in recognizing that autonomous, useful, physical interaction and construction tasks are possible with drones,” said Ella Atkins, a professor of aerospace engineering and robotics.

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