HEIDENHAIN SW 688945-03 - Manual (Page 195)

HEIDENHAIN CNC PILOT 620/640 195
4.5 Recessing cy
cles
Undercut position
The CNC PILOT determines the position of an undercut from the cycle
parameters for starting point X, Z (current tool position in Manual
mode) and corner point of contour X1, Z1.
Contour forms
Undercuts can only be executed in orthogonal, paraxial
contour corners along the longitudinal axis.
Contour elements in recessing cycles
Basic mode
Machining a rectangular area
Expanded mode
Oblique cut at contour start
Expanded mode
Oblique cut at contour end
Expanded mode
Rounding arc in both corners of the contour
valley
Expanded mode
Chamfer (or rounding arc) at contour start
Expanded mode
Chamfer (or rounding arc) at contour end