HEIDENHAIN TNC 310 (286 140) - Manual (Page 154)

8 Programming: Cycles 142
SCALING FACTOR (Cycle 11)
The TNC can increase or reduce the size of contours within a
program, enabling you to program shrinkage and oversize
allowances.
Function
The scaling factor becomes effective as soon as it is defined in the
program. It is also effective in the Positioning with MDI mode of
operation. The active scaling factor is shown in the additional status
display.
Scaling factor
■ in the working plane, or on all three coordinate axes at the same
time (depending on machine parameter 7410)
■ to the dimensions in cycles
■ to the parallel axes U,V,W
Prerequisite
It is advisable to set the datum to an edge or a corner of the contour
before enlarging or reducing the contour.
ú Scaling factor ?: Enter the scaling factor SCL. The
TNC multiplies the coordinates and radii by the
SCL factor (as described under “Activation” above)
Enlargement: SCL greater than 1 (up to 99.999 999)
Reduction: SCL less than 1 (down to 0.000 001)
Cancellation
Program the SCALING FACTOR cycle once again with a scaling
factor of 1.
8.6 Cy
cles f
or Coor
dinat
e
T
ransf
or
mations
Z
Z
X
X
Y
Y