HEIDENHAIN iTNC 530 (60642x-04) User Manual

Page 501

HEIDENHAIN iTNC 530

501

12.2 The PLANE function: Tilting the w

ing plane (sof

e option

Defining the working plane via three points:
PLANE POINTS

Application
A working plane can be uniquely defined by entering any three points
P1 to P3 in this plane

. This possibility is realized in the PLANE POINTS

function.

Before programming, note the following

The connection from Point 1 to Point 2 determines the

direction of the tilted main axis (X for tool axis Z).
The direction of the tilted tool axis is determined by the

position of Point 3 relative to the connecting line between

Point 1 and Point 2. Use the right-hand rule (thumb = X

axis, index finger = Y axis, middle finger = Z axis (see

figure at right)) to remember: thumb (X axis) points from

Point 1 to Point 2, index finger (Y axis) points parallel to the

tilted Y axis in the direction of Point 3. Then the middle

finger points in the direction of the tilted tool axis.
The three points define the slope of the plane. The

position of the active datum is not changed by the TNC.
Parameter description for the positioning behavior: See