ACU-RITE CNC 3500i - Manual (Page 448)

422 11 G-Code Edit, Help, & Advanced Features
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Probe Move (G31)
G31 is to be issued with an associated axis move (i.e. G31 X10). When
the G31 is executed, it moves at current feedrate selected for G1 until
the touch probe selected is deflected. At this point, the move is
stopped, and the position where the probe touched the part is read
and passed to system variables (#1060 to #1063 for X to U).
 G31 is aborted if any of the following events occur:
 The primitive is issued while the probe is still deflected (touching
the part).
 The ready signal is not present.
 Hardware malfunction: Trigger signal engaged, but no position is
latched.
 Start pulse is issued, but probe is not ready after 2 seconds. (Only
cordless probes).
 Cordless probe still in "sleeping mode”.
 Low battery signal becomes active (Only cordless probes).
Canned cycles are available for the most common probe functions.
Using the G31 primitive, parametric programming, and the M-Code
described here, it is possible to write additional cycles to perform
custom probing functions.
M9387X0 Selects the Tool touch probe (X13)
M9387X1 Selects the 3-D touch probe (X12) (default)
M9387Y0 Copies Tool touch probe state (deflected or not) into
a system variable (#1066)
M9387Y1 Copies 3-D touch probe state (deflected or not) into
a system variable (#1066)
M9387Z0 Turns off cordless probe
M9387Z1 Turns on cordless probe