The so-called “step loss” and the resulting error in the position reference is a problem that has been overcome in modern stepper motors.
Step loss can only occur if the motors are used incorrectly, for example if they run at speeds that are too high, or lose torque, or if the mechanics connected to the motors are not suitable for the application. In a properly dimensioned CNC machine, loss of pitch is practically impossible.
In stepper motors, torque is not constant but decreases as the speed with which they turn increases. There is, therefore, a speed threshold that must never be exceeded.
With this principle in mind, the stepper motors continue to be a very good solution for low-speed applications. We find that they are perfect for use in stone processing machines.
In the case of a Next Router, motors which can run up to 2700 rpm are used, but they are configured to run at a maximum speed of 500 rpm. This is to make sure that we are well below the threshold where we would encounter loss of steps and it guarantees that our Next Router will never lose steps when you are using it.