HEIDENHAIN TNC 426 B User Manual page 203

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8 The tool then moves to the starting point of the next line.
9 All subsequent lines are processed in a reciprocating movement.
Starting point 1st axis Q225 (absolute value):
Coordinate of the starting point in the main axis of the
working plane
Starting point 2nd axis Q226 (absolute value):
Coordinate of the starting point in the secondary axis
of the working plane
Spacing in 1st axis Q237 (incremental value): Spacing
between the individual points on a line
Spacing in 2nd axis Q238 (incremental): Spacing
between the individual lines
Number of columns Q242: Number of machining
operations on a line
Number of lines Q243: Number of passes
Angle of rotation Q224 (absolute value): Angle by
which the entire pattern is rotated. The center of
rotation lies in the starting point.
Set-up clearance Q200 (incremental value): Distance
between tool tip and workpiece surface.
Workpiece surface coordinate Q203 (absolute value):
Coordinate of the workpiece surface
2nd set-up clearance Q204 (incremental value):
Coordinate in the tool axis at which no collision
between tool and workpiece (clamping devices) can
occur.
188
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Y
Q226
Q225
Z
Q200
Q203
Example NC blocks:
54
Y L DEF 221
ARTESIAN PATTRN
Q225=+15
;STARTNG PNT 1ST AXIS
Q226=+15
;STARTNG PNT 2ND AXIS
Q237=+10
;SPA ING IN 1ST AXIS
Q238=+8
;SPA ING IN 2ND AXIS
Q242=6
;NUMBER OF
Q243=4
;NUMBER OF LINES
Q224=+15
;ANGLE OF ROTATION
Q200=2
;SET-UP
Q203=+0
;SURFA E
Q204=50
;2. SET-UP
Q238
Q224
X
Q204
X
OLUMNS
LEARAN E
OORDINATE
LEARAN E
8 Programming: Cycles

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