HEIDENHAIN TNC 640 (34059x-04) ISO programming - Manual (Page 98)

Programming: Fundamentals, file management
3.2 Opening programs and entering
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TNC 640 | User's Manual for DIN/ISO Programming | 3/2014
Select the PROGRAMMING mode of operation
To call the file manager, Press the PGM MGT key.
Select the directory in which you wish to store the new program:
.I
Enter the new program name and confirm your
entry with the ENT key.
Selecting 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
Example: Display the BLK form in the NC program
%NEW G71 * Program begin, name, unit of measure
N10 G30 G17 X+0 Y+0 Z-40 * Spindle axis, MIN point coordinates
N20 G31 X+100 Y+100 Z+0 * MAX point coordinates
N99999999 %NEW G71 * Program end, name, unit of measure
The TNC automatically generates the first and last blocks of the
program.
If you do not wish to define a blank form, cancel the
dialog at
Working plane in graphic: XY by pressing
the DEL key.