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222 7 Programming: Canned Cycles, sub-programs
7.3 Probing Cycles
To use the Outside Corner Finding Cycle:
Place the probe in the spindle with its tool number active and the
tool type set to "Touch Probe".
Manually jog the probe stylus less than 0.1" (2.54 mm) away from
the outside of the corner you wish to find in X & Y. If H = 1, the Z-axis
should be within 0.1" (2.54 mm) above the part otherwise the Z-axis
should be at the side picking depth.
Type G142 Qn Wn. If this is run from inside a program, this line
needs to be repeated for every corner you wish to find or whose
position you want to reestablish.
Execute the line in Manual Data Input Mode by touching NC Start.
Field Code Description
DistInX A The distance from the starting point to
move in the X-axis to find the top of the part.
The default is toward the corner being
found 0.4" (10.16 mm). (Optional)
DistInY B The distance from the starting point to
move in the Y-axis to find the top of the part.
The default is toward the corner being
found 0.4" (10.16 mm). (Optional)
X I This causes the cycle to make a protected X
move to the coordinate entered relative to
the current active work coordinate before
finding the corner.
(Optional)
Y J Same as I only for the Y-axis. (Optional)
Z K Same as I only for the Z-axis. (Optional)
Offset W Work Coordinate to update with edge
location in X- and Y-axes. If set, work
coordinate is updated. Work coordinate
register is not updated if not set and a
warning message tells the operator no
update has taken place if W is not set.
(Optional)
When positioning the probe from within the program, you
should always use the G146 (Protected Probe Positioning)
cycle (see G146 instructions later in this document) or use
the I, J, or K cycle parameters for the same purpose.