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2 f undamentals of path functions – HEIDENHAIN iTNC 530 (60642x-04) User Manual

Page 224

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224

Programming: Programming Contours

6.2 F

undamentals of path functions

Entering more than three coordinates
The TNC can control up to 5 axes simultaneously (software option).

Machining with 5 axes, for example, moves 3 linear and 2 rotary axes

simultaneously.
Such programs are too complex to program at the machine, however,

and are usually created with a CAM system.
Example:

Circles and circular arcs
The TNC moves two axes simultaneously on a circular path relative to

the workpiece. You can define a circular movement by entering the

circle center CC.
When you program a circle, the control assigns it to one of the main

planes. This plane is defined automatically when you set the spindle

axis during a TOOL CALL:

L X+20 Y+10 Z+2 A+15 C+6 R0 F100 M3

X

Y

X

Y

CC

X

CC

Y

CC

Spindle axis

Main plane

Z

XY

, also

UV, XV, UY

Y

ZX

, also

WU, ZU, WX

X

YZ

, also

VW, YW, VZ

You can program circles that do not lie parallel to a main

plane by using the function for tilting the working plane

(see User's Manual for Cycles, Cycle 19, WORKING

PLANE) or Q parameters (see "Principle and overview",

page 318).