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Remove this potentiometer along with the mechanical safety stop, and your servo will then rotate in either direction indefinitely. This acts as a feedback mechanism that controls the position of the motor for a given input pulse rate. Inside your typical analog servo is a small potentiometer that rotates along with the motor output. Lucky for you, it’s pretty easy to modify a servo to rotate infinitely in either direction. Although you can purchase modified servos that will rotate infinitely in either direction, the standard 180-degree servos are more commonly available, are usually cheaper, and you may already have a couple lying around from an old RC car. Standard servos, though, can only rotate through about 180-degrees. Their motion is relatively precise and predictable, and they operate on the same voltage as most microcontroller electronics, allowing you to build a simple robot without any additional motor control circuitry. Servos can work really well as drive motors for a small robot. Graphics and More to Help Spread the Word Learn More About the Amazing Maker Awards The top projects selected by community votes, panel judges, and the editorial team Subscribe to the premier DIY magazine todayĬommunity access, print, and digital Magazine, and moreīrowse all the projects and learn about their makers too! Skill builder, project tutorials, and more Get hands-on with kits, books, and more from the Maker Shed
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