HEIDENHAIN TNC 406 - Manual (Page 102)

HEIDENHAIN TNC 406, TNC 416 81
5.2 Electr
ode Compensation V
a
lues
Tool movements with radius compensation: RR and RL
The electrode center moves along the contour at a distance equal to
the radius. ”Right” or ”left” are to be understood as based on the
direction of electrode movement along the workpiece contour. See
figures at right.
Entering radius compensation
Program any desired path function, enter the coordinates of the target
point and confirm your entry with ENT.
To select tool movement to the left of the contour,
press the RL key, or
To select tool movement to the right of the contour,
press the RR key, or
To select tool movement without radius
compensation or to cancel radius compensation,
press the ENT key.
To terminate the block, press the END key.
RR The electrode moves to the right of the programmed
contour.
RL The electrode moves to the left of the programmed contour.
Between two program blocks with different radius
compensations (RR and RL) you must program at least one
traversing block in the working plane without radius
compensation (that is, with R0).
Radius compensation does not take effect until the end of
the block in which it is first programmed.
Whenever radius compensation is activated or cancelled,
the TNC positions the electrode perpendicular to the
programmed starting or end position. Position the
electrode at a sufficient distance from the first (or last)
contour point to prevent damaging the contour.
RADIUS COMP. RL/RR/NO COMP. ?
X
Y
RL
X
Y
RR