Mastering Chamfer and Radius Programming with G01 Code
The linear movement programmed with G01 G Code can be linked to the movement of the next cnc program block by a chamfer (C) or a radius (R).
Related: G01 Chamfer and Corner Rounding a CNC Program Example
G01 Chamfer Programming
The chamfer can be identified by just the letter C followed by the value.
N12 ….. N13 G1 X… Z… C… N14 …..

G01 Chamfer Programming
G01 Radius Programming
The Radius can be identified by just the letter R followed by the value.
N12 ….. N13 G1 X… Z… R… N14 …..

G01 Radius Programming
For a complete cnc programming example of Chamfer and Radius with G01 read following cnc programming article
G01 Chamfer and Corner Rounding a CNC Program Example
CNC Machine
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- CNC Programming: Chamfer & Radius Using G01 G-Code
- Master Sinumerik 810 CNC Mill Radius & Chamfer Programming – Step‑by‑Step Example
- CNC Programming Fundamentals: Step‑by‑Step Tutorials & Sample Code
- CNC Lathe Programming: Simple Contour Turning with Radius Example
- CNC Lathe Programming: Using Radius Dimensioning for X‑Axis Cuts
- CNC Programming Exercise: Fill‑in‑the‑Blank – Outside Turning with Radius