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G41.2/G42.2: 3D tool radius compensation (5 axes)

3D tool radius compensation for 5-axis machining (type 1); applies the radius correction normal to the surface.

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
G41.2 D01 / G42.2 D01
E.g.:
G41.2 D01 / G42.2 D01

Parameters

D
Corrector de radio de herramienta para la compensación 3D.

Machine: Milling, Mill-turnRisk: High

Fanuc · Siemens

  • Fanuc: Requires 5-axis option; different from classic G41/G42 2D.
  • Siemens: Siemens equivalence: 3D compensation with active TRAORI.

Other codes in 5 axes

See the full list of G and M codes

Frequently Asked Questions (FAQ)

What does G41.2/G42.2 mean in a CNC program?

3D tool radius compensation for 5-axis machining (type 1); applies the radius correction normal to the surface. In the catalogue it appears as "3D tool radius compensation (5 axes)", within the 5 axes family.

Can you give me an example of G41.2/G42.2?

G41.2 D01 / G42.2 D01 — 3D tool radius compensation for 5-axis machining (type 1); applies the radius correction normal to the surface.

Which machines use G41.2/G42.2?

G41.2/G42.2 is used in: Milling, Mill-turn.

What should you watch out for with G41.2/G42.2?

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.

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