Which configuration is described as mimicking the human arm?

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Multiple Choice

Which configuration is described as mimicking the human arm?

Explanation:
Matching a human arm means using a sequence of joints that bend and rotate like the real arm, giving similar reach and orientation through three sequential rotary joints. The configuration described as three rotary joints in series provides shoulder-like rotation, elbow-like bending, and wrist-like twisting, allowing the end effector to move and orient as a human arm would. Other configurations that include linear joints or place joints in a way that limits or alters this pure rotational chain won’t reproduce the same natural arm motion, so they’re a poorer match. That’s why the three-rotary-joint in sequence setup best mimics the human arm.

Matching a human arm means using a sequence of joints that bend and rotate like the real arm, giving similar reach and orientation through three sequential rotary joints. The configuration described as three rotary joints in series provides shoulder-like rotation, elbow-like bending, and wrist-like twisting, allowing the end effector to move and orient as a human arm would. Other configurations that include linear joints or place joints in a way that limits or alters this pure rotational chain won’t reproduce the same natural arm motion, so they’re a poorer match. That’s why the three-rotary-joint in sequence setup best mimics the human arm.

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