HEIDENHAIN TNC 407 (280 580) User Manual - Manual (Page 276)

9-9 TNC 425/TNC 415 B/TNC 407
9 3D Touch Probes
• Select the probe direction perpendicular to the angle reference axis when measuring workpiece misalignment.
• To ensure that the basic rotation is calclulated correctly during program run, program both coordinates of the
working plane in the first positioning block.
0 e.g. ENT
I
I
9.2 Touch Probe Cycles in the MANUAL and ELECTRONIC HANDWHEEL Operating Modes
PA
A B
2
1
Compensating workpiece misalignment
The TNC electronically compensates misalignment
by computing a "basic rotation". You set the rotation
angle to the desired angle with respect to the
reference axis in the working plane (see page 1-13).
Press the PROBING ROT soft key.
ROTATION ANGLE =
Enter the nominal value of the ROTATION ANGLE.
Move the ball tip to a starting position A near the first touch point 1 .
or
X + X – Y + Y –
Select the probe direction (perpendicular to the angle reference axis).
Probe the workpiece.
Move the ball tip to a starting position
B
near the second touch point
2
.
Probe the workpiece.
A basic rotation is kept in non-volatile storage and is effective for all
subsequent program runs and graphic simulation.
Fig. 9.10: Basic rotation of a workpiece, probing procedure for
compensation (right); The dash line is the nominal position;
the angle PA is being compensated.