HEIDENHAIN TNC 620 User Manual page 453

When tilting the working plane, the TNC differentiates between
two machine types:
Machine with tilting table
You must tilt the workpiece into the desired position for
machining by positioning the tilting table, for example with
an L block.
The position of the transformed tool axis
in relation to the machine-based coordinate system. Thus if
you rotate the table—and therefore the workpiece—by 90°
for example, the coordinate system
press the Z+ axis direction button in the Manual Operation
mode, the tool moves in Z+ direction.
In calculating the transformed coordinate system, the
TNC considers only the mechanically influenced offsets
of the particular tilting table (the so-called "translational"
components).
Machine with swivel head
You must bring the tool into the desired position for
machining by positioning the swivel head, for example with
an L block.
The position of the transformed tool axis changes in relation
to the machine-based coordinate system. Thus if you rotate
the swivel head of your machine—and therefore the tool
—in the B axis by 90° for example, the coordinate system
rotates also. If you press the Z+ axis direction button in the
Manual Operation mode, the tool moves in X+ direction of
the machine-based coordinate system.
In calculating the transformed coordinate system, the
TNC considers both the mechanically influenced offsets
of the particular swivel head (the so-called "translational"
components) and offsets caused by tilting of the tool (3-D
tool length compensation).
The TNC only supports tilting the working plane with
spindle axis Z.
TNC 620 | User's Manual
HEIDENHAIN Conversational Programming | 5/2013
Tilting the working plane (software option 1) 13.9
does not change
does not rotate. If you
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