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# Q: What are the pulse equivalents of engraving machines?

Release date ：2018-06-19 Browse times：517

1, to understand the screw, lead 5 of the screw is every two wire spacing is 5;

2. The stepping motor is 1.8 degrees 200 steps, and one circle is 200×1.8=360 degrees;

3, the driver is 8 subdivision is to divide 1.8 into 8 times;

4. Each step through the drive motor is 1.8 degrees ÷ 8 = 0.225 degrees;

5, each turn is 200 × 8 = 1600 step;

6. The lead screw 5 leads 5 mm for each turn. Each step is 5÷1600 = 0.003125 mm. This is the motor parameter. If the parameter of lead 3 is 0.001875, then the analogy is given.

7. Divide the motor parameter by 1 is the pulse equivalent, for example: 1÷0.003125=320, which is the pulse equivalent of how many steps each 1 millimeter takes. Turn left | Turn right The pulse equivalent is defined as the displacement of the resulting positioning control movement when the controller outputs a positioning control pulse. For linear motion, it refers to the distance to move. For circular motion, it refers to the angle of rotation.

The displacement of the moving parts of the machine relative to each pulse signal is called the pulse equivalent, also called the minimum setting unit. Its size depends on the accuracy of the machine tool, generally 0.01 ~ 0.0005cm. The pulse equivalent affects the machining accuracy of the CNC machine tool. The smaller the value is, the higher the machining accuracy is. The pulse equivalent is defined as the displacement of the positioning control that is generated when the controller outputs a positioning control pulse. For linear motion, it refers to the distance to move. For circular motion, it refers to the angle of rotation.