Creating A New Nc Program - HEIDENHAIN TNC 128 User Manual

3
Cylindrical blank
The cylindrical blank form is defined by the dimensions of the
cylinder:
X, Y or Z: Rotation axis
D, R: Diameter or radius of the cylinder (with positive algebraic
sign)
L: Length of the cylinder (with positive algebraic sign)
DIST: Shifting along the rotational axis
DI, RI: Inside diameter or inside radius for a hollow cylinder
The parameters DIST and RI or DI are optional and need
not be programmed.
Example
0 BEGIN PGM NEW MM
1 BLK FORM CYLINDER Z R50 L105 DIST+5 RI10
2 END PGM NEW MM

Creating a new NC program

You always enter an NC program in Programming mode. An
example of program initiation:
Operating mode: Press the Programming key
Press the PGM MGT key
The control opens the file manager.
Select the directory in which you wish to store the new NC
program:
FILE NAME = NEW.H
Enter the new program name
Press the ENT key
Select the unit of measure: Press the MM or
INCH soft key
The control switches the screen layout and
initiates the dialog for defining the BLK FORM
(workpiece blank).
Select a rectangular workpiece blank: Press the
soft key for a rectangular blank form
Working plane in graphic: XY
Enter the spindle axis, e.g. Z
Z
114
Fundamentals, File Management | Creating and writing programs
Program begin, name, unit of measure
Spindle axis, radius, length, distance, inside radius
Program end, name, unit of measure
HEIDENHAIN | TNC 128 | Conversational Programming User's Manual | 10/2017