Defining The Working Plane Via Three Points: Plane Points - HEIDENHAIN TNC 620 User Manual

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Programming: Multiple Axis Machining

12.2 The PLANE Function: Tilting the Working Plane (Software Option 1)

Defining the working plane via three points: PLANE

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 (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

Parameter description for the positioning behavior:

See "Specifying the positioning behavior of the

PLANE function", page 403.

plane. This possibility is realized in the

HEIDENHAIN Conversational Programming | 3/2014

TNC 620 | User's Manual