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Opening a new part program – HEIDENHAIN TNC 128 (77184x-02) User Manual

Page 86

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Programming: Fundamentals, file management

3.2

Opening and entering programs

3

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TNC 128 | User's Manual HEIDENHAIN Conversational Programming | 5/2014

Cylindrical blank

The cylindrical blank form is defined by the dimensions of the
cylinder:

R: Radius of the cylinder

L: Length of the cylinder

DIST: Shifting along the rotational axis

RI: Inside radius for a hollow cylinder

The

DIST and RI parameters are optional and do not

need to be programmed.

Example: Display the BLK FORM CYLINDER in the NC program

0 BEGIN PGM NEW MM

Program begin, name, unit of measure

1 BLK FORM CYLINDER Z R50 L105 DIST+5 RI10

Spindle axis, radius, length, distance, inside radius

2 END PGM NEW MM

Program end, name, unit of measure

Opening a new part program

You always enter a part program in the

PROGRAMMING mode of

operation. An example of program initiation:

Select the

PROGRAMMING mode of operation

Call the file manager: Press the PGM MGT key

Select the directory in which you wish to store the new program:

FILE NAME = NEW.H

Enter the new program name and confirm your
entry with the ENT key.

Select the unit of measure: Press the MM or INCH
soft key. The TNC 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

Z

Enter spindle axis, e.g. Z

WORKPIECE BLANK DEF.: MINIMUM

Enter in sequence the X, Y and Z coordinates of
the MIN point and confirm each of your entries
with the ENT key

WORKPIECE BLANK DEF.: MAXIMUM

Enter in sequence the X, Y and Z coordinates of
the MAX point and confirm each of your entries
with the ENT key