HEIDENHAIN TNC 620 User Manual page 446

12
Multiple axismachining
12.2 The PLANE function: Tilting the working plane (software option 8)
Defining the working plane via three points: PLANE
POINTS
Application
A working plane can be uniquely defined by entering
points P1 to P3 in this
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) 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.
Further Information:
behavior of the PLANE function", page 451
446
plane. This possibility is realized in the
"Specifying the positioning
any three
HEIDENHAIN | TNC 620 | ISO Programming User's Manual | 9/2016