Linear motion publications are typically dominated by topics related to linear guides, ball screws, and lead screws. But looking back at this site’s most-viewed articles in 2019, it’s obvious that while these are important technologies in the world of linear motion, they’re not the only things our readers are interested in.
Case in point: In 2019, our most popular topics ranged from primers on mechanical concepts such as torsion and Hertzian contact stresses, to more advanced tutorials such as how to calculate motor drive torque and how to size a rack and pinion drive.
In case you missed any of these popular — and important — topics in linear motion, here’s a look back at our top 10 articles from 2019.
The precise amount of current to be delivered to the motor is determined by the servo controller, based on information supplied by an encoder regarding the system’s actual condition (position, speed, or torque). The controller sends these current commands to the servo drive (also referred to as an amplifier), which provides the motor with the precise current needed to adjust for any differences between the commanded value and the actual value.