HEIDENHAIN TNC 426B (280 472) Touch Probe Cycles - Manual (Page 136)

124 5 Digitizing
5.2 Pr
ogr
a
mming Digitizing Cy
cles
5.2 Programming Digitizing Cycles
Selecting digitizing cycles
U U U U press the TOUCH PROBE key.
U U U U Use soft keys to select the desired digitizing cycle
U U U U Answer the dialog questions on the TNC screen: Enter the
appropriate values with the keyboard and confirm each input with
the ENT key. When all the required data have been entered, the TNC
terminates the cycle definition automatically. For information on the
individual input parameters refer to the cycle descriptions in this
chapter.
Defining the digitizing range
The touch probe systems provide two cycles for defining the digitizing
range. Cycle 5 RANGE defines a cuboid range within which the touch
probe scans the contour. If you are using a measuring touch probe,
you can also select a contour point table with Cycle 15 RANGE, in
which the shape of the digitizing range is defined as a polygon.
Defining a cuboid digitizing range
Similar to defining the workpiece blank, the digitizing range is
programmed by entering the MIN and MAX point coordinates of the
three main axes X, Y and Z (see figure at right).
U U U U PGM Name digitizing data : Enter the name of the file in which the
TNC is to store the digitizing data.
U U U U TCH PROBE axis : Enter the touch probe axis
U U U U MIN point in range : Lowest coordinates in the range to be digitized.
U U U U Max. point range : Highest coordinates in the range to be digitized.
U U U U Clearance height : Position in probe axis at which the stylus cannot
collide with the model.
Example
In the screen menu for configuring the data interface, you
must enter the complete directory path in which the TNC
is to store the digitized data.
50 TCH PROBE 5.0 RANGE
51 TCH PROBE 5.1 PGM NAME: DATA
52 TCH PROBE 5.2 Z X+0 Y+0 Z+0
53 TCH PROBE 5.3 Z X+10 Y+10 Z+2
54 TCH PROBE 5.4 HEIGHT: +100
Y
X
Z
MAX
Z
S
MIN