Stepper Motor
A stepper motor is a type of brushless DC electric motor that rotates in precise, discrete steps, allowing for accurate control of position and speed without the need for feedback sensors. This makes it essential in applications requiring exact movements, like robotics and 3D printing, where even the slightest error can lead to significant issues in modern automated systems.
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Stepper motors can achieve rotational accuracy down to 0.9 degrees per step in high-precision models, which is so exact that it's used in the James Webb Space Telescope to adjust mirrors with incredible precision, helping capture images of distant galaxies. This level of control has enabled breakthroughs in space exploration, making it possible to align optical systems that reveal secrets of the universe billions of light-years away.
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