M-Series Operator’s Manual 4/9/15
G89 - Boring cycle with dwell
G89 is similar to G85, except that it includes an optional dwell at the bottom of the hole before retracting the tool.
Example:
G89 X1 Y1 R.1 Z-.5 P.1 ; bore 0.5" hole at X1 Y1, dwell .1 seconds
G80 ; cancel canned cycle
G90 & G91 - Absolute/Incremental Positioning Mode
G90 selects absolute positioning, and G91 selects incremental positioning. In absolute positioning, all coordinates
are relative to the origin (0,0,0,0). In incremental positioning, all coordinates are distances relative to the last point.
G90 Absolute positioning
G91 Incremental coordinates
Example:
G90 X2 Y3 ; moves the X and Y axes from the current position
; to X2, Y3.
G91 X1 Y0 ; moves the X axis 1 inch referenced from the last X
; position, the Y axis does not move.
G92 - Set Absolute Position
G92 sets the current absolute position to the coordinates specified. This command only affects the currently set
Work Coordinate System.
Example:
G0 X5 Y3 Z-2 W5 ; Moves to the specified location
G92 X1 Y0 Z0 W1 ; Sets the current position to the absolute
; position specified.
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