Bridgeport G Code List – CNC Mill

Complete Bridgeport G code list for cnc machinists who work on cnc mill.

Bridgeport CNC Milling Machine

Bridgeport CNC Milling Machine

Bridgeport Mill G Codes

G codeDescription
G00Rapid traverse (Programmed feedrate remains in register)
G01Linear interpolation (Feed in a linear path)
G02Circular interpolation CW. Arc
G03Circular interpolation CCW. Arc
G04Dwell
G08MODAL Deceleration override OFF
G09MODAL Deceleration override ON
G12Helical interpolation CW
G13Helical interpolation CCW
G17X Y Plane selection
G18ZX Plane selection
G19YZ Plane selection
G22Circular interpolation, Fillet input CW
G22Circular interpolation, Fillet input CCW
G30Mirror image OFF (Cancel symmetry)
G31Mirror image X ON (X symmetry)
G32Mirror image Y ON (Y symmetry)
G40Cancel compensation (Cutter diameter offset OFF)
G41Cutter compensation left
G42Cutter compensation right
G44Cutter compensation, Normal feedrate
G45Cutter compensation, Modify feedrate
G70Input inch (Select Inch dimension system)
G71Input millimeter (Select metric dimension system)
G72Transformation OFF (Cancel transformation)
G73Transformation / Rotation, Scaling
G74Multi quadrant circle input OFF
G75Multi quadrant circle input ON
G77Facing cycle (Zig zag mill cycle)
G78Pocket milling cycle
G79Bore mill cycle (Internal hole mill cycle)
G80Fixed cycle cancel
G81Drill cycle – Z cycle, drill (feed in, rapid out)
G82Spot facing cycle (with dwell) – Z cycle, spot face (feed in, rapid out)
G83Deep hole drill cycle – Z cycle, deep hole (peck, rapid out)
G84Tapping cycle (need reversible tapping head) – Z cycle, tap (feed in, feed out)
G85Boring cycle (use for reaming) – Z cycle, bore (feed in, feed out)
G86Boring cycle – Z cycle, bore (feed in, stop-wait, rapid out)
G87Chip breaking cycle (backs up .05 then returns .05) – Z cycle, chip break (peck, rapid out)
G89Boring cycle – Z cycle, bore (feed in, dwell, feed out)
G90Absolute programming (Absolute input)
G91Incremental programming (Incremental input)
G92Preset part programming zero point
G96Restore base part programming coordinate system
G97Set work coordinate system
G99Deceleration override
G170Outside frame mill
G171Inside frame mill
G172Pocket frame mill
G173Outside face mill
G174Inside face mill
G175Outside circle mill
G176Inside circle mill
G177Pocket circle mill
G179Slot mill
G181-G189Z cycle (same as g81-g89) multi-hole
G191-199Z cycle (same as g81-g89) frame of holes