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The MG996R is a popular high-torque servo motor used in various robotics and automation applications. It's known for its durability and performance, making it suitable for applications requiring precise control and substantial force.

MG996R Servo Motor Overview

1. Key Features:

• Torque:

  • Torque Specifications:
    • At 4.8V: Approximately 9.4 kg·cm (130 oz·in)
    • At 6.0V: Approximately 11.2 kg·cm (150 oz·in)
  • High Torque: Suitable for applications that need substantial force, such as heavy-duty robotic arms and steering systems.

• Speed:

  • Speed Specifications:
    • At 4.8V: Approximately 0.20 sec/60°
    • At 6.0V: Approximately 0.17 sec/60°
  • Speed Performance: Provides quick response times for precise control.

• Control:

  • Type: Analog servo motor
  • Control Signal: Receives PWM (Pulse Width Modulation) signals to control position.
  • Position Range: Typically provides a range of 180°, with 90° being the center position.

• Build:

  • Gears: Uses metal gears for increased durability and strength.
  • Motor Type: DC motor with a potentiometer for position feedback.

• Size:

  • Dimensions: Approximately 40.7 mm x 19.7 mm x 42.9 mm (1.6 in x 0.8 in x 1.7 in)
  • Weight: Around 55 grams (1.9 ounces)

• Power Supply:

  • Voltage Range: Typically operates between 4.8V and 6.0V DC.
  • Current Consumption: Depends on load and operation, typically higher current draw under load.

2. Working Principle:

• PWM Control:

  • The MG996R servo motor operates using PWM signals, which dictate the angle of the servo horn. The width of the PWM pulse determines the position of the servo.

• Feedback Mechanism:

  • The internal potentiometer provides feedback on the current position of the servo. This feedback allows the servo to adjust its position to match the control signal accurately.

• Movement:

  • By receiving varying PWM pulse widths, the servo adjusts the position of its output shaft. For example, a pulse width of 1.5ms typically centers the servo, while shorter or longer pulses move it to the extremes of its range.

3. Pin Configuration:

The MG996R typically has three pins:

1. Power (+):

   • Connects to the positive terminal of the power supply (e.g., 4.8V to 6.0V DC).

2. Ground (-):

   • Connects to the ground terminal of the power supply.

3. Signal (PWM):

   • Receives PWM control signals from a microcontroller or servo controller.

4. Applications:

• Robotics:

  • Used in robotic arms, legs, and other moving parts that require precise control and high torque.

• Remote-Controlled Vehicles:

  • Commonly used in RC cars, boats, and planes for steering and other control surfaces.

• Automation Systems:

  • Utilized in automated systems that need strong, reliable actuation.

• Model Making:

  • Used in hobbyist models and simulations where precise control of moving parts is required.

5. Advantages:

• High Torque:

  • Provides substantial force, making it suitable for demanding applications.

• Durability:

  • Metal gear construction enhances durability and longevity.

• Precise Control:

  • Offers precise control over angular position, suitable for fine-tuned adjustments.

• Cost-Effective:

  • Provides a good balance of performance and cost, making it accessible for both hobbyists and professionals.

6. Limitations:

• Power Consumption:

  • Higher current draw under load can lead to significant power consumption, which may require a robust power supply.

• Size and Weight:

  • Larger and heavier compared to some other servos, which may be a consideration in space-constrained applications.

• Noise:

  • Can produce noise during operation, particularly under high torque loads.

Example Use Case:

Robotic Arm:

• In a robotic arm, the MG996R can be used to control joints and grippers. Its high torque allows it to handle heavy loads and perform precise movements, making it ideal for tasks that require strong and accurate actuation.

Summary:

The MG996R servo motor is a robust and high-torque servo suitable for a wide range of applications, from robotics and automation to RC vehicles and model making. With its metal gears, precise control, and substantial torque, it provides reliable performance for tasks requiring significant force and accuracy.