G43.4/G43.5: TCP/5-axis compensation

Tool point compensation for simultaneous or indexed machining in 5 axes.

For reference only: syntax changes with the control, the post-processor and the machine parameters. Check the official manual and run a simulation before cutting. Legal notice.

Family: 5 axes
Machine: Milling, Mill-turn
Risk: High
Example: G43.4 H01

G43.4/G43.5

5 axes

TCP/5-axis compensation

E.g.:

G43.4 H01

Parameters

H: Corrector de longitud de la herramienta para el cálculo del punto de herramienta (TCP).

Machine: Milling, Mill-turnRisk: High

Fanuc

G43.4 / G43.5 H...

Requires correct kinematics and postprocessor; Always simulate.

Siemens · Heidenhain

Siemens: Conceptual equivalence: TRAORI/CYCLE800 depending on machine.
Heidenhain: Conceptual equivalence: PLANE SPATIAL and TCPM/M128 according to control.

Other codes in 5 axes

Heidenhain PLANE SPATIAL Inclined plane / 5 axes Heidenhain Siemens CYCLE800 Siemens inclined plane Siemens TRAFOOF Cancel transformation Fanuc G68.3/G68.4 Advanced inclined plane G54.4 WSEC part position error compensation G41.2/G42.2 3D tool radius compensation (5 axes)

See the full list of G and M codes

Frequently Asked Questions (FAQ)

What does G43.4/G43.5 mean in a CNC program?

Tool point compensation for simultaneous or indexed machining in 5 axes. In the catalogue it appears as "TCP/5-axis compensation", within the 5 axes family.

How is G43.4/G43.5 written on each control?

Fanuc: G43.4 / G43.5 H.... The exact syntax depends on the control version and the machine parameters: always confirm with the manufacturer's manual.

Can you give me an example of G43.4/G43.5?

G43.4 H01 — Tool point compensation for simultaneous or indexed machining in 5 axes.

Which machines use G43.4/G43.5?

G43.4/G43.5 is used in: Milling, Mill-turn.

What should you watch out for with G43.4/G43.5?

High risk: a mistake here can cause a crash, a broken tool or an out-of-tolerance part. Simulate the program and dry-run it before cutting.

Related tools

CNC G-code Simulator

CNC IDE: editing with G/M tooltips, line inspector, conversion between controls and 2D/3D toolpath.

CNC Alarms Guide

CNC Alarms and Solutions Guide. Enter the error code or symptom to find the cause and how to repair it at the machine.

Calculate cycle time

Estimate CNC turning and milling cycle time from G-code. Calculate parts per hour with a breakdown of cutting, rapids, canned cycles and tool changes.