Scaling; Effect; Cycle Parameters - HEIDENHAIN TNC 640 User Manual

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10.7 SCALING (Cycle 11, DIN/ISO: G72

The TNC can increase or reduce the size of contours within

a program, enabling you to program shrinkage and oversize

The SCALING FACTOR becomes effective as soon as it is defined

in the program. It is also effective in Positioning w/ Manual Data

Input mode of operation. The active scaling factor is shown in the

additional status display.

The scaling factor has an effect on

all three coordinate axes at the same time

dimensions in cycles

Prerequisite

It is advisable to set the datum to an edge or a corner of the

contour before enlarging or reducing the contour.

Enlargement: SCL greater than 1 (up to 99.999 999)

Reduction: SCL less than 1 (down to 0.000 001)

Program the SCALING cycle once again with a scaling factor of 1.

Factor?: Enter the scaling factor SCL. The TNC

multiplies the coordinates and radii by the SCL

factor (as described under "Effect" above). Input

range 0.000001 to 99.999999

Cycles: Coordinate Transformations | SCALING (Cycle 11, DIN/ISO: G72

11 CALL LBL 1

12 CYCL DEF 7.0 DATUM SHIFT

13 CYCL DEF 7.1 X+60

14 CYCL DEF 7.2 Y+40

15 CYCL DEF 11.0 SCALING

16 CYCL DEF 11.1 SCL 0.75

17 CALL LBL 1

HEIDENHAIN | User's manual for cycle programming | 10/2017