Overview

Task

Mechanical vibrations have a direct impact on the dynamics and machining results of machine tools. The following factors cause excitation in the machine in particular:

• the natural frequencies of the machine and
• frequencies impacting the machine from external influences.

The "Improved Position Control" function provides active damping of these mechanical vibrations by control mechanisms.

This function is available as of CNC Build V3.1.3077.08.

Effectiveness

The active damping of vibrations allows the setting of a higher proportional gain factor (K_v) in the position control loop. This results in

• better dynamics,
• shorter machining times and
• better workpiece quality.

The possible applications include axes where individual frequencies affect the quality of machining.

Parameterisation

The "Improved Position Control" function is parameterised for each single axis in the axis parameters.

An exception to this are gantry slave axes. In this case, the parameters are adopted internally directly from the master axis.