Path Contours - Polar Coordinates; Overview - HEIDENHAIN TNC 620 User Manual

5
5.5 Path contours – Polar coordinates

Overview

With polar coordinates you can define a position in terms of its angle
PA and its distance PR relative to a previously defined pole CC.
Polar coordinates are useful with:
Positions on circular arcs
Workpiece drawing dimensions in degrees, e.g. bolt hole circles
Overview of path functions with polar coordinates
Key Tool movement
+ Straight line
+ Circular path around circle center/pole to
arc end point
+ Circular arc with tangential connection to
the preceding contour element
+ Combination of a circular and a linear
movement
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Programming contours | Path contours – Polar coordinates
Required input
Polar radius, polar angle of the straight-
line end point
Polar angle of the arc end point, direction
of rotation
Polar radius, polar angle of the arc end
point
Polar radius, polar angle of the arc end
point, coordinate of the end point in the
tool axis
HEIDENHAIN | TNC 620 | Klartext Programming User's Manual | 01/2022
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