6. Interpolation Functions
6.13 Spiral/Conical Interpolation
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Detailed description
(1) The arc rotation direction G02.1 is the same as G02, and G03.1 is the same as G03.
(2) There are no R-designated arcs in spiral interpolation.
(3) Conical cutting, tapered thread-cutting and other such machining operations can be
conducted by changing the start point and end point radius and commanding the linear axis
simultaneously.
(4) Normally the spiral interpolation is automatically enabled with the arc commands (G02, G03)
when the difference between the start point radius and the end point radius is less than the
parameter setting value.
(5) The axis combination that can be simultaneously commanded depends on the specifications.
The combination within that range is random.
(6) The feedrate is the constant tangential speed.
(7) Simultaneous control by combining with tool radius compensation (G41, G42) is not possible.
(8) The arc plane always follows G17, G18 and G19. The plane arc control is carried out by G17,
G18 and G19, even if designated by two addresses that do not match the plane.
(9) Conical interpolation
When an axis designation other than the spiral interpolation plane is simultaneously
designated, other axes are also interpolated in synchronization with the spiral interpolation.
(10) With M2/M0 format, the command such as "G69 G02" or "G69 G03" can be also used
for the spiral interpolation.
For details, refer to the section "13.25 End point error check cancel; G69".