5 path contours-polar coordinates, Overview, 5 path contours—polar coordinates – HEIDENHAIN iTNC 530 (340 49x-01) User Manual
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6 Programming: Programming Contours
6.5 P
a
th Cont
ours—P
o
lar Coor
dinat
e
s
6.5 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 (see
“Fundamentals” on page 210).
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
Function
Path function key
Tool movement
Required input
Polar radius, polar angle of the
straight-line end point
Circular path around circle center/
pole CC to arc end point
Polar angle of the arc end point,
direction of rotation
Circular arc with tangential
connection to the preceding
contour element
Polar radius, polar angle of the arc
end point
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