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CNC Programming: Chamfer & Radius Using G01 G-Code

CNC programming example code to demonstrate, how to program a Chamfer and Radius (Corner Rounding) with G01 G-code.

Easy to program and understand that even a beginner level CNC machinist can understand and program such sample codes.

Mostly works on Fanuc and similar CNC controls.

No extra G-code or technique is required. Just have to put a “C” for chamfer and an “R” for Radius in a cnc program block with G01 G-code. Chamfer is at 45° (45 degrees).

For a brief description of how Chamfer and Corner Radius are programmed with G01 G code read following cnc programming article Chamfer and Radius Programming with G01 G code.

Another such program example is here G01 Chamfer and Corner Rounding a CNC Program Example

Chamfer and Radius with G01 G-Code

CNC Programming: Chamfer & Radius Using G01 G-Code

Chamfer and Radius Program Example with G01

N40 G01 X26 Z53
N50 G01 X26 Z27 R6
N60 G01 X86 Z27 C3
N70 G01 X86 Z0

CNC Machine

  1. Fanuc CNC Programming Guide: A Simple, Feature‑Rich Example
  2. Mastering G01: Chamfer & Corner Rounding in CNC Programming
  3. Mastering Chamfer and Radius Programming with G01 Code
  4. Master G81 Drilling Cycle with G91 Incremental Mode: Step-by-Step Example Program
  5. Master Sinumerik 810 CNC Mill Radius & Chamfer Programming – Step‑by‑Step Example
  6. Haas CNC Programming: Corner Rounding & Chamfering Using G01 C & R
  7. CNC Lathe Programming: Simple Contour Turning with Radius Example
  8. CNC Lathe Programming: Arc Radius Example Using G02 & G03 Codes
  9. Haas Corner Rounding & Chamfering Program Example – Step‑by‑Step CNC Workflow
  10. CNC Outside Turning with Radius: Step‑by‑Step Program Example