HEIDENHAIN TNC 320 User Manual page 525

Setting the datum using multiple holes/cylindrical studs
The manual probing function Model Circle is part of the Cir probing
function. Individual circles can be determined with paraxial probing
operations.
A second soft-key row provides the soft key PROBING CC (model
circle) for using multiple holes or circular studs to set the datum.
You can set the intersection of two or more elements as datum.
Setting the datum in the intersection of multiple holes/circular
studs:
Pre-position touch probe
Select Model Circle probing function
Select the touch probe function: Press the
PROBING CC soft key
Press the PROBING CC (model circle) soft key
Probe a circular stud
Circular stud should be probed automatically:
Press STUD soft key
Enter starting angle or select using soft key
Start probing function: Press the NC START soft
key
Probe the hole.
Hole should be probed automatically: Press the
HOLE soft key
Enter starting angle or select using soft key
Start probing function: Press the NC START soft
key
Repeat the probing procedure for the remaining
elements
Terminate the probing procedure and switch to the
evaluation menu: Press the EVALUATE soft key
Datum: In the menu window, enter both
coordinates of the circle center, confirm with the
SET DATUM soft key, or write the values to a table
Further Information:
from the touch probe cycles to a datum table",
page 507
Further Information:
from the touch probe cycles to the preset table",
page 508
To terminate the probe function, press the END
soft key
HEIDENHAIN | TNC 320 | Conversational Programming User's Manual | 9/2016
Datum setting with a 3-D touch probe
"Writing measured values
"Writing measured values
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