Servo motors are used in many hobby and experimenter applications. From radio-controlled aircraft to robot dogs, these motors are used whenever you need to be able to precisely position a motor shaft.
But most hobby servos are small devices, and even “large” hobby servos are not really all that large, and can only supply a limited amount of torque. Plus, larger servos generally mean a larger price tag.
Another limitation for some designs is that hobby servo motors are usually limited to either 180 or 270 degrees of rotation.
So why not build one ourselves? After all, internally, a servo motor is simply a DC motor with a control and feedback circuit. And you can buy, or salvage, a large DC motor for a lot less than the cost of a big servo motor.
Today, I’ll show you how to convert a DC gear motor into a custom servo motor. One that can rotate exactly to suit your requirements.
Servo motors are used in many hobby and experimenter applications. From radio-controlled aircraft to robot dogs, these motors are used whenever you need to be able to precisely position a motor shaft.
But most hobby servos are small devices, and even “large” hobby servos are not really all that large, and can only supply a limited amount of torque. Plus, larger servos generally mean a larger price tag.
Another limitation for some designs is that hobby servo motors are usually limited to either 180 or 270 degrees of rotation.
So why not build one ourselves? After all, internally, a servo motor is simply a DC motor with a control and feedback circuit. And you can buy, or salvage, a large DC motor for a lot less than the cost of a big servo motor.
Today, I’ll show you how to convert a DC gear motor into a custom servo motor. One that can rotate exactly to suit your requirements.
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