# Definition of terms

General:

ID | Identifier; general identifier
Type | Kinematic structure with specific features
RT | Backward transformation
TCP | Tool centre point; centre point of milling cutter
VT | Forward transformation
MCS | Machine coordinate system
TCS | Workpiece coordinate system
MNP | Machine zero point
SBP | Slide reference point (tool slide reference point)

Other abbreviations:

HD | Kinematic offset value (head distance)