# Profile rounding, technology and dynamics during feed motion

## Machining on profile roundings

In comparison to straight sections, there may be deviations in material characteristics (e.g. wall thickness) in the area of the profile roundings. When the limits to the profile roundings are crossed, this can be signalled by M/H functions. As a result, the process can be influenced by the PLC. The M/H functions are always of the MOS type (M functions without synchronisation).

Output of a technology function at a profile rounding

## Dynamics in the profile rounding

At the transition points of the profile roundings, the CNC may possibly reduce the feed rate due to the acceleration of other axes depending on the parameterised axis dynamics of the participating axes.

The dynamics on the profile rounding can be influenced by parameters in the NC command #CYL[...]. In addition to the normal path velocity and acceleration limit (cf. #VECTOR LIMIT[ VEL ACC]), the values from the #CYL[...] command are also considered in the profile rounding.

## Programing Example

Machining on profile roundings

#CYL[EDGES=4 ROUNDING=5 LENGTH1=50 LENGTH2=50
ACC=500000 VEL=1000]

Path dynamics adjustment on profile rounding