Category Coordinates & Offsets

Work Coordinate Offset (G54)

Commonly used work coordinate offset.

Work Coordinate Offset (G54)

Definition

Commonly used work coordinate offset. It gives the program a stable work origin that is separate from machine zero.

Formula / Rule

  • G54 selects one work offset register so all programmed coordinates are referenced from that datum.
  • Keep probing results, setup sheets, and restart procedures aligned to the same offset number.

Typical Range

  • Use it for the primary setup datum, then move to G55 and above only when a separate work origin is required.

Shop-floor Scenarios

  • Confirm G54 in the safety line before the first move after setup.
  • Recheck offset values after probing, fixture replacement, or crash recovery.

Common Errors / Troubleshooting

  • If every feature shifts together, inspect the active work offset before editing geometry.
  • If only one machine is wrong, compare stored G54 values and probing macros.

More in This Category

Absolute Programming Composite Coordinate System Coordinate Mirroring Coordinate Rotation (G68) Coordinate Scaling (G51) Coordinate System Setup Cutter Compensation Direction Datum Axis Datum Hole Datum Plane Drawing Datum Extended Coordinate System (G54.1)

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