Datum From Outside Of Corner (Cycle 414, Din/Iso: G414, Software Option 17); Cycle Run - HEIDENHAIN TNC 620 User Manual

DATUM FROM OUTSIDE OF CORNER (Cycle 414, DIN/ISO: G414,
15.8 DATUM FROM OUTSIDE OF CORNER
(Cycle 414, DIN/ISO: G414, software
option 17)

Cycle run

Touch Probe Cycle 414 finds the intersection of two lines and
defines it as the datum. If desired, the TNC can also enter the
intersection into a datum table or preset table.
1 Following the positioning logic, the TNC positions the touch
probe at rapid traverse (value from FMAX column) (see
"Executing touch probe cycles", page 294) to touch point
figure at upper right). The TNC offsets the touch probe by the
safety clearance in the direction opposite to the respective
traverse direction.
2 Then the touch probe moves to the entered measuring height
and runs the first probing process at the probing feed rate
(column F). The TNC derives the probing direction automatically
from the programmed 3rd measuring point.
1 Then the touch probe moves to the next starting position
from there probes the second position.
2 The TNC positions the probe to starting point
4
starting point to probe the third and fourth touch points.
3 Finally the TNC returns the touch probe to the clearance height
and processes the determined datum depending on the cycle
parameters Q303 and Q305 (see "Characteristics common to all
touch probe cycles for datum setting", page 322) and saves the
coordinates of the determined corner in the Q parameters listed
below.
4 If desired, the TNC subsequently measures the datum in the
touch probe axis in a separate probing.
Parameter number
Q151
Q152
TNC 620 | User's Manual Cycle Programming | 3/2014
3
and then to
Meaning
Actual value of corner in reference
axis
Actual value of corner in minor axis
software option 17)
1
(see
2
and
15
15.8
347