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How to Calculate Torque (kg.cm) for Each Joint of a Robotic Arm to Select Servos

A poster asks how to calculate the torque (in kg.cm) for each joint of a robotic arm using J=mgr in order to choose the most suitable servos, and gives the conversion 1 N·m ≈ 10.1 kg·cm. The post only lists the theoretical formula, without giving a specific robotic arm model, number of joints, or measured data, and hopes someone can guide how to apply the formula to a project or recommend a YouTube video explaining the basic concepts.

Part of the event: Reddit user asks for help calculating robot arm joint torque to select servos

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