HEIDENHAIN iTNC 530 209
6.5 Path Contours—Polar Coordinates
6.5 Path Contours—Polar
Coordinates
Overview
With polar coordinates you can define a position in terms of its angle
H and its distance R relative to a previously defined pole I, J.
Polar coordinates are useful with:
îš„ Positions on circular arcs
îš„ Workpiece drawing dimensions in degrees, e.g. bolt hole circles
Overview of path functions with polar coordinates
Function Path function key Tool movement Required input Page
Straight line G10,
G11
+ Straight line Polar radius, polar angle of
the straight-line end point
Page 210
Circular arc G12,
G13
+ Circular path around circle
center/pole to arc end point
Polar angle of the arc end
point,
Page 211
Circular arc G15 + Circular path corresponding
to active direction of rotation
Polar angle of the circle end
point
Page 211
Circular arc G16 + Circular arc with tangential
connection to the preceding
contour element
Polar radius, polar angle of
the arc end point
Page 212
Helical interpolation + Combination of a circular and
a linear movement
Polar radius, polar angle of
the arc end point, coordinate
of the end point in the tool
axis
Page 213
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