Using motor-driven linear actuator to design your automated machine, which will come with a question: choosing linear motion guide or ball screw? It depends on how its characteristic align with your application’s goals.
Roughly speaking, the repeatability of a belt linear driven rail might be defined as its ability to achieve repetition of the same task. On the other hand, accuracy is the difference between the requested task and the obtained task .
A cartesian coordinate robot (also called linear robot) is an industrial robot whose three principal axes of control are linear (i.e. they move in a straight line rather than rotate) and are at right angles to each other.The three sliding joints correspond to moving the wrist up-down,in-out,back-forth.