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  • Eliminating compliance in servosystems
    A traditional motor-mounting arrangement consists of a housed motor coupled to a lead or ball-screw shaft by a flexible coupling and a motor mount. A direct drive consists of a rotor assembly fabricated directly on the ball screw, eliminating duplicate motor parts, compliant couplings, and brackets
  • Servomotor Performance Comparison
    are found following the data plots. The natural frequency is the ability of the whole system to respond to step changes in input current. A higher natural frequency equates to a faster response and better performance. The mechanical system was a 15 mm diameter ball screw with a 15 mm lead and a travel

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