Operation Manual

HEIDENHAIN CNC PILOT 4290 561
6.18 Machining Information
Note on machining the rear face
For contours on the rear side (C/Y axis machining) remember the
orientation of the XK or X axis and the orientation of the C axis.
Designations (see figure at right):
 Front side (“V”): The side toward the working space
 Rear side (“R”): The side away from the working space
These designations also apply to workpieces clamped at the opposing
spindle, or to workpieces rechucked for rear-side machining in lathes
with one spindle.