01.93 3 Directions of Movement, Dimensioning
3.10 Coordinate rotation
Interaction of the various offsets and rotations
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MK Machine coordinate system
X
E
/Y
E
Settable coordinate rotation
X
P1
/Y
P1
1st programmable coordinate rotation
X
P2
/Y
P2
2nd programmable coordinate rotation
Geometry to be machined
The contour is always the same. The angle of rotation differs.
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Y
55
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X
55
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A
55
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Machining 1
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X
58
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Machining 2
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P1
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Y
59
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A
58
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59
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Machining 4
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P3
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Machining 3
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59'
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59
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G
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P2
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P2
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P3
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MK
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X
P1
% 10
N005 G55
(Settable coordinate rotation)
N010 ..
(Machining 1, rotated through A
55
)
.
N070 G90 G58 X
58
A
58
(1st programmable coordinate rotation, absolute)
N075 ...
(Machining 2, rotated through A
55
+A
58
)
.
N140 G59 X
59
Y
59
A
59
(2nd programmable coordinate rotation, absolute)
N145 ...
(Machining 3, rotated through A
55
+A
58
+A
59
)
.
N205 G91 G59 A
59'
(3rd programmable coordinate rotation, incremental)
N210 ...
(Machining 4, rotation through A
55
+A
58
+A
59
+A
59'
)
Special case: programmable coordinate rotation
The control refers to the current actual value when calculating the end position.
If only one coordinate is programmed and a block search is executed or the program is
aborted with "Reset" and restarted, it is no longer certain that the programmed positions will
be approached.
© Siemens AG 1991 All Rights Reserved 6ZB5 410-0HD02 3–25
SINUMERIK 880, (PG)