Reaction with block transitions at angles less than 180°

For block transitions with transition angles less than 180°, the two block elements are shortened.

An inverse TRC shifts the two involved blocks back to the programmed contour. The profile of an inverse TRC at this point is neither C0 continuous nor C1 continuous. During the interpolation, the profile of an inverse path jumps from the end of the first block to the start of the second block.

Based on this inverse TRC path, online tool radius compensation calculates the real TRC path.

Reaction with block transitions at angles less than 180° 1: — Response at the inside corner of a geometry at block transitions with a angle of 90°

Other block transitions are contained in [PROG, section: Generating compensation blocks].

Change in tool radius:

If the tool radius is changed when tool radius compensation is active, the parameter can be influenced by the TRC option “PERPENDICULAR_RADIUS_CHANGE”.

By default, if an option is inactive, the changed tool radius is extended in the following motion block (see Reaction to change in tool radius).

If this option is set, the following profile results at the inside corner.

Reaction with block transitions at angles less than 180° 2: — Change in tool radius at the inside corner of a geometry at block transitions with an angle of 180°