The second aspect is the actuator's ability to provide increments of precise motion along the working axis, which depends on leadscrew or ballscrew lead accuracy, feedback encoder or linear scale ...

In a hypertorus model of the Universe, motion in a straight line will return you to your original location. Image credit: ESO and deviantART user InTheStarlightGarden, under a c.c.-by-s.a. 4.0 ...