![]() Each phase draws 2.8 A at 3.2 V, allowing for a holding torque of 19 kg-cm. ![]() The NEMA 23 bipolar stepper motor has a 1.8° step angle (200 steps/revolution). Four of these are used to manipulate the four grippers which in turn rotate the faces of the cube as required. Since the torque required to rotate the face of the Rubik’s cube is low, NEMA 17 was used. Each phase draws 1.2 A at 4 V, allowing for a holding torque of 3.2 kg-cm. The NEMA 17 can be used as a unipolar or bipolar stepper motor and has a 1.8° step angle (200 steps/revolution). Two NEMA 23 motors and four NEMA 17 motors were used for the Bot. NEMA 17 and NEMA 23 are the two varieties of stepper motors used. The Bot utilizes an Arduino UNO microcontroller to control and coordinate the rotation of the stepper motors. Stepper motors are used to control the rotation of grippers which rotate the faces of the cube during the cube solving process. ![]() The project is a Rubik’s Cube Solver Bot whose primary objective is to solve the Rubik’s Cube in the least number of moves.
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