Overview: Types Of Paths For Contour Approach And Departure - HEIDENHAIN TNC 620 User Manual

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Overview: Types of paths for contour approach and
departure
The functions for contour approach APPR and departure DEP are
activated with the APPR/DEP key. You can then select the following
path forms with the corresponding soft keys:
Approach Departure
Approaching and departing a helix
The tool approaches and departs a helix on its extension by moving
in a circular arc that connects tangentially to the contour. You
program helical approach and departure with the APPR CT and DEP
CT functions.
280
Programming Contours | Approaching and departing a contour
Function
Straight line with tangential connec-
tion
Straight line perpendicular to a
contour point
Circular arc with tangential connec-
tion
Circular arc with tangential connec-
tion to the contour. Approach and
departure to an auxiliary point outside
the contour on a tangentially connect-
ing line
HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2017