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

6
Programming: Programming Contours
6.3 Approaching and departing a contour
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.
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Function
Straight line with tangential
connection
Straight line perpendicular to a
contour point
Circular arc with tangential
connection
Circular arc with tangential
connection to the contour. Approach
and departure to an auxiliary point
outside the contour on a tangentially
connecting line
HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2015