Some pop quiz from a noobie me.
Is a unipolar stepper motor is more precise than a bipolar stepper motor? Since Unipolar requires nearly double steps to finish a full turn than a bipolar. But i know that bipolar is more stronger than unipolar in terms of speed, torque and etc...
So how about precision term?
Since Unipolar requires nearly double steps to finish a full turn than a bipolar.
Not true in general.
If the motors have the same number of magnetic poles, they have the same precision. Most unipolar motors can be used in exactly the same way as bipolar motors. See Jones on Stepping Motors
Although microstepping is usually only done in bipolar chopper-drivers, not for unipolar
motors. However there is not fundamental reason that microstepping cannot be done
for a unipolar. Remember the only difference between unipolar and bipolar is the windings
and electronics, so they can do the same things (except unipolar are less efficient in their
use of copper wire).
Wouldn't the answer here lie in the step angle of a particular motor?