Editing Resolution of motors
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==Stepping motor== | ==Stepping motor== | ||
===Resolution=== | ===Resolution=== | ||
− | + | Stepper resolution depends on number of magnetic steps per revolution and drive's electrical step angle size. Most modern drives implement microstepping to increase resolution and motion smoothness. Most common stepper resolution is 200 full steps per revolution but when driven for example with 16-microstep drive, the resulting resolution is 1600 steps per revolution (1/1600 revolutions). | |
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===Accuracy=== | ===Accuracy=== | ||
Because steppers don't usually have [[Feedback devices|feedback devices]], the accuracy depends on motor load torque and motor linearity. Most stepping motor manufacturers quote angular accuracy of ±0.9° or 1/400 revolutions. Stepper accuracy can't be increased by increasing microstepping resolution. | Because steppers don't usually have [[Feedback devices|feedback devices]], the accuracy depends on motor load torque and motor linearity. Most stepping motor manufacturers quote angular accuracy of ±0.9° or 1/400 revolutions. Stepper accuracy can't be increased by increasing microstepping resolution. | ||
==See also== | ==See also== | ||
*[[Wikipedia:Accuracy and precision]] | *[[Wikipedia:Accuracy and precision]] | ||
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