HEIDENHAIN TNC 426B (280 472) Touch Probe Cycles - Manual (Page 54)

42 3 Touch Probe Cycles for Automatic Workpiece Inspection
3.2 A
u
to
matic D
at
u
m Set
ting
3.2 Automatic Datum Setting
Overview
The TNC provides nine cycles for automatic datum setting or
automatic entry of the measured values into the active datum table:
Cycle Soft key
410 DATUM INSIDE RECTAN. Measuring the
inside length and width of a rectangle, and
defining the center as datum
411 DATUM OUTSIDE RECTAN. Measuring the
outside length and width of a rectangle, and
defining the center as datum
412 DATUM INSIDE CIRCLE Measuring any four
points on the inside of a circle, and defining the
center as datum
413 DATUM OUTSIDE CIRCLE Measuring any
four points on the outside of a circle, and defining
the center as datum
414 DATUM OUTSIDE CORNER Measuring two
lines from the outside of the angle, and defining
the intersection as datum
415 DATUM INSIDE CORNER Measuring two
lines from within the angle, and defining the
intersection as datum
416 DATUM CIRCLE CENTER (2nd soft-key
level) Measuring any three holes on a bolt hole
circle, and defining the bolt-hole center as datum
417 DATUM IN TS AXIS (2nd soft-key level)
Measuring any position in the touch probe axis
and defining it as datum
418 DATUM FROM 4 HOLES (2nd soft-key level)
Measuring 4 holes crosswise and defining the
intersection of the lines between them as datum