Multipass - HEIDENHAIN POSITIP 880 User Manual

Function
LINE soft key opens the program form for
machining a line.
ARC soft key opens the program form for
machining an arc.
BLEND soft key opens the program form and
NORMAL ARC, INVERTED ARC and CLOSED
CONTOUR soft keys for performing a blend.
CHAMFER soft key opens the program form
and the CLOSED CONTOUR soft key to create
a chamfer.
MORE soft key allows the operator to toggle
through the different soft keys rows.

Multipass

The multipass cycle enables you to turn a shoulder in any number of
passes. See Fig. I.83.
Three blocks are needed to enter into a program:
Cycle block
X coordinate
Z coordinate
The multipass cycle contains all information required for the operation.
Do not delete any blocks from the cycle.
When the program is operating, POSITIP 880 will display the distance-
to-go to the two nominal positions immediately following the cycle
block. See Fig. I.84.
Example: Turning a shoulder in any number of passes
Workpiece diameter after machining:
End of shoulder:
POSITIP 880
Soft key
X = 10 mm
Fig. I.83 Example of MULTIPASS
Z = –30 mm
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