HEIDENHAIN TNC 426B (280 472) Touch Probe Cycles - Manual (Page 150)

138 5 Digitizing
5.3 T
y
pes of Digitizing
Triggering touch probe: MEANDER cycle with a rotary axis
If you enter a linear axis (e.g. X) in the input parameter for line
direction, the TNC moves the rotary axis (e.g. A) entered in the RANGE
cycle by the line spacing L.SPAC as soon as it reaches the end of the
line. The touch probe then oscillates, for example in the Z/X plane (see
figure at upper right).
If you define the line direction as a rotary axis, the TNC moves the
linear axis entered in the RANGE cycle by the line spacing L.SPAC as
soon as it reaches the end of the line. If the line direction is the rotary
axis A, and L.SPAC is in the linear axis X, then the touch probe
oscillates in the Z/A plane (see figure at center right).
Example: NC blocks
Y
X
Z
L A
Y
X
Z
L
A
30 TCH PROBE 5.0 RANGE
31 TCH PROBE 5.1 PGM DIGIT: DATROT
32 TCH PROBE 5.2 Z X+0 A+0 Z+0
33 TCH PROBE 5.3 X+85 A+270 Z+25
34 TCH PROBE 5.4 HEIGHT: 100
. . .
60 TCH PROBE 6.0 MEANDER
61 TCH PROBE 6.1 DIRECTN: A
62 TCH PROBE 6.2 TRAVEL: 0.3 L.SPAC: 0.5 PP.INT: 0.5