Gene,
Here's a hole probe routine I have used with my touch
probe. The constant 0.1526 is the effective radius of the
probe tip. Due to the lag in sensing the probe, it makes a
fairly rapid touch first at F10, backs off, and then does it
again, from very close, at F1. It writes out the coordinate
offset of the center as well as the diameter in that direction.
g91 g1 F10 X-0.05
g91 G38.2 X0.5
G91 G1 F1 X-0.02
g91 G38.2 X0.1
#1001=#5061
g91 g1 f10 X-0.05
g91 G38.2 X-1.0
G91 G1 F1 X0.02
g91 G38.2 X-0.1
#1002=#5061
#1003=[[#1001+#1002]/2]
#1001=[#1001-#1002+0.1526]
(debug,X center #1003)
(debug,X width #1001)
G90 G1 F10 X#1003
g91 g1 F10 Y-0.05
g91 G38.2 Y0.5
G91 G1 F1 Y-0.02
g91 G38.2 Y0.1
#1004=#5062
g91 g1 f10 Y-0.05
g91 G38.2 Y-1.0
G91 G1 F1 Y0.02
g91 G38.2 Y-0.1
#1005=#5062
#1006=[[#1004+#1005]/2]
#1004=[#1004-#1005+0.1526]
(debug,Y center #1006)
(debug,Y width #1004)
G90 G1 F10 Y#1006
G10 L20 P1 X0 Y0
M02
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