HEIDENHAIN TNC 640 User Manual page 696

16
Turning | Tools in turning mode (option 50)
Virtual tool tip
Use FUNCTION TCPM with the selection REFPNT TIP-CENTER to
activate the virtual tool tip. Correct tool data are the prerequisite for
calculating the virtual tool tip.
The virtual tool tip is effective in the workpiece coordinate system.
When the tool is inclined, the virtual tool tip remains unchanged
as long as the tool orientation TO is the same. The control
automatically switches the status display TO and thus also the
virtual too tip if the tool leaves the angle range valid for TO 1, for
example.
The virtual tool tip enables you to perform inclined paraxial
longitudinal and transverse machining operations with high contour
accuracy even without radius compensation.
Further information: "Simultaneous turning", page 705
696
HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017