HEIDENHAIN CNC PILOT 640 User Manual page 647

TURN PLUS | Example
Thread:
Select the Thread menu item
Select the desired surface
Press the Select soft key
TURN PLUS opens the Undercut DIN 76 dialog
box
The threads are already saved in the control
Press the Save soft key
Press the Back soft key
Preparing the machining process, chucking
Depending on machine parameter defaultG59 (no.
602022), TURN PLUS automatically calculates the
required datum shift for the workpiece and activates it
with G59.
To calculate the datum shift, TURN PLUS takes the
following values into account:
Length Z (description of workpiece blank)
Allowance K (description of workpiece blank)
Edge of chuck Z (description of chucking equipment
or machining parameters)
Chuck jaw reference B (description of chucking
equipment or machining parameters)
HEIDENHAIN | User's Manual smart.Turn and DIN Programming | 12/2017
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