back-drivability

Back-drivability is a robotics term for how easily an actuator, such as a motor and gearbox, can be moved backward from its output side. Joints with high back-drivability absorb force when they bump into people or objects and make it easier to sense and regulate contact forces.

It is treated as an important design factor, along with force sensing and compliance, in robots that handle objects delicately and safely or work alongside people.

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