
Z
(+
positive
direction
)
X
(+
positive
direction
)
Co-ordinate Example
-- NOTICE --
Co-ordinate have
signs to specify its'
relative location
from zero.
Z
(+
positive
direction
)
Y
(+
positive
direction
)
X
(+
positive
direction
)
Understanding the Co-ordinate System :
For those operator who do not have experience in CNC programming, or the first time user of SC-100's
R functions, they may find that it is difficult to understand what is meant by "co-ordinate".
The co-ordinate is a pair of numbers which specify a position on a surface.
When using SC-100's R function, it is necessary to enter the co-ordinates of ARC center, start point, end
point and etc. to let SC-100 know the geometry of the ARC to be machined.
During installation, the engineer will set the display direction same the the dial of the
machine. For a Taiwanese made knee-type machine, because of the lead screw dial direction,
the SC-100 display directions are also be normally set as follows
.
Co-ordinate is a pair of number which specify the distance from the datum point ( zero position ), the number
can be either be positive or negative and depends on the direction relative to the zero position
50
30
20
40
A
B
B
Coordinate : (+50, +40)
A
Coordinate : (+30, +20)
Example 1 :
datum point
(zero position)
( 0, 0 )
50
30
20
40
A
B
B
Coordinate : (+50, -20)
A
Coordinate : (+30, -40)
datum point
(zero position)
( 0, 0 )
Example 2 :
please notice that the Y coordinate
is negative because it located at
the negative direction from the
zero position.
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Summary of Contents for Premium SC-100
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