Scaling Factor (Cycle 11) - HEIDENHAIN TNC 370 User Manual

8 Cycles
4
8.7 Cycles for Coordinate Transformations
Cycle in a part program
0 BEGIN PGM 360838 MM
1 BLK FORM 0.1 Z X+0 Y+O Z-20
2 BLK FORM 0.2 X+1 00 Y+lOO Z+O
3 TOOL DEF 1 L+O R+5
4
TOOL CALL 1 Z SIOOO
5 L Z+lOO RO FMAX
6
CALL LBL 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Non-rotated execution@
7 CYCL DEF 7.0 DATUM . . . . .._............................... Rotated execution. Sequence:
8 CYCL DEF 7.1 X+70
9 CYCL DEF 7.2 Y+60 ._............._._._....................... 1. Datum shift @
10 CYCL DEF 10.0 ROTATION ,.....,........__._..,...,..... 2. Rotation @
11 CYCL DEF 10.1 ROT +35
12 CALL LBL 1 . . . . . . . . . . .._........................................... 3. Subprogram call
13 CYCL DEF 10.0 ROTATION . ..__...............__...... Cancel rotation
14 CYCL DEF 10.1 ROT0
15 CYCL DEF 7.0 DATUM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cancel datum shift
16 CYCL DEF 7.1 X+0
17 CYCL DEF 7.2 Y+O
18 L Z+lOO RO FMAX M2
19 LBL 1
.
.
.
LBL 0
END PGM 360838 MM
The corresponding subprogram (see page 8-62) is programmed after
M02.
SCALING FACTOR (Cycle 11)
Application
This cycle allows you to increase or reduce the size of contours within a
program, such as for shrinkage or finishing allowances.
-
Activation
A scaling factor becomes effective as soon as the cycle is defined
Scaling factors can be applied
in the working plane, or to all three coordinate axes at the same time
l
(depending on MP7410)
l
to the dimensions in cycles
l
also in the parallel axes U, V, W
The scaling factor is indicated in the status display with SCL.
4
d
Input data
The cycle is defined by entering the scaling factor SCL. The TNC multi-
plies the coordinates and radii by the SCL factor (as described under
"Activation" above).
To increase the size: enter SCL greater than 1 (max. 99.999 999)
To reduce the size: enter SCL less than 1 (down to 0.000 001)
Cancellation
To cancel a scaling factor, enter a scaling factor of 1.
Prerequisite
8-66
Before entering a scaling factor it is advisable to set the datum to an
edge or corner of the contour.
d
TNC 370