Acu-Rite CNC 3500i user manual Field Code Description, 219

Field	Code	Description
Boss	Q	Set Q to 1 if you are calibrating to a boss
		verses a ring gauge. Otherwise, do not set
		or set to 0. Default is: 0. (Optional)
Top	H	If set to 1, the cycle finds the top of the part
		before calibrating the probe. If Q parameter
		is set to 1, H is forced to 1 as well;
		otherwise, the Default is: 0. (Optional)
DistDown	E	The distance to go down from the top of
		the ring gauge or standing boss for
		calibration. This is only used if H parameter
		is set to 1. Without any E value, the cycle
		brings the probe down past the top of the
		ring gauge after finding the top, 0.1". Note:
		If the stylus ball is greater than .2" (5.08
		mm), E must be set to at least half the ball
		diameter. (Optional)
DistBack	V	The V parameter specifies the distance to
		back away from the edge for the probe to
		fast feed to before trying to find it. Default
		is: 0.1" (2.54 mm) if not set. (Optional)
GaugeDim	D	The diameter of the ring gauge hole the
		probe stylus comes in contact with. This is
		only to override the value in the machine
		setup parameter
		diameterOfSpindleProbeGauge if needed
		and should be an exact measurement.
		(Optional)
DistInX	A	The distance from the starting point to
		move in the X-axis to find the top of the
		gauge. The default, if Q is not set or set to
		0, is 0.1" (2.54 mm) beyond the edge of the
		ring gauge hole. If Q is set to 1, the default
		is the current probe position. (Optional)
DistInY	B	The distance from the starting point to
		move in the Y axis to find the top of the
		gauge. The default is the current probe
		position. (Optional)

You must have:

The probe in the spindle with its tool number active and the tool type set to "Touch Probe".

The Ring Gauge mounted on the machine table.

7.3 Probing Cycles

ACU-RITE 3500i 219