HEIDENHAIN TNC 620 Programming Station, User Manual

Page: 534 / 695

Manual Operation and Setup
14.10 Datum setting with a 3-D touch probe (option number 17)
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HEIDENHAIN | TNC 620 | ISO Programming User's Manual | 9/2016
Corner as datum
Select the probing function: Press the
PROBING P
soft key
Position the touch probe near the first touch point
on the first workpiece edge
Select the probe direction by soft key
Probe: Press the
NC START
key
Position the touch probe near the second touch
point on the same workpiece edge
Probe: Press the
NC START
key
Position the touch probe near the first touch point
on the second workpiece edge
Select the probe direction by soft key
Probe: Press the
NC START
key
Position the touch probe near the second touch
point on the same workpiece edge
Probe: Press the
NC START
key
Datum
: Enter both datum coordinates into the
menu window and confirm your entry with the
SET DATUM
soft key
Further Information: "Writing measured values
from the touch probe cycles to the preset table",
page 520
To terminate the probe function, press the
END
soft key
HEIDENHAIN only gives warranty for the function of
the probing cycles if HEIDENHAIN touch probes are
used.
You can identify the intersection of two straight lines
by holes or studs and set this as the datum.
The "Corner as datum" probing cycle identifies the angle and
intersection of two straight lines. In addition to datum setting, the
cycle can also activate a basic rotation. The TNC has two soft keys
for you to determine the straight line that you wish to use for this.
The
ROT 1
soft key activates the angle of the first straight line
as basic rotation and the
ROT 2
soft key the angle of the second
straight line.
If you wish to activate the basic rotation in the cycle, you must
always do this before datum setting. After you set a datum and
write it into a datum table or preset table, the soft keys
ROT 1
and
ROT 2
will no longer be displayed.