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Outer-side Acute Angle
From a line to a line
Amount of offset
a
Programmed
path
From an arc to a line
Amount of
offset
Programmed path
a
Amount of offset
Path traveled by
center of tool
A case such as the following is an exception. In the figure at left, a crossover point exists on the path traveled by the tool center, and the
tool path is created normally. When the amount of offset becomes larger, however, no crossover point exists on the tool-center path, as
shown in the figure at right, and an error occurs.
Exception
No crossover point on the tool path
Amount
of offset
Arc 1
* In this case, a crossover point exists on
the tool-center path for arcs 1 and 2.
(a < 90°)
Amount of offset
Path traveled by
center of tool
Path traveled
by tool center
Programmed
path
Arc 2
From a line to an arc
Amount of offset
a
Programmed
path
From an arc to an arc
Amount of
offset
a
Amount of offset
Path traveled by
center of tool
Center of arc 2
Amount
of offset
Arc 1
* When the amount of offset becomes larger,
the crossover point disappears from the
tool-center path for arcs 1 and 2.
Amount of offset
Path traveled by
center of tool
Programmed path
Center of arc 1
Programmed
path
Arc 2
35
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