In CNC machining, creating precise corners, edges, and contours is essential for the functionality and aesthetics of a part. Chamfering and radiusing are two techniques used to remove sharp edges and create a transition between surfaces. The G01 linear interpolation command is commonly used in CNC programming to create these features with precision.

Usage Format

The G01 command is followed by X, Y, Z coordinates and, if necessary, an F command to set the feed rate. For chamfering and radiusing, additional parameters like C (chamfer) or R (radius) are used.

Chamfer Example:

G01 X... Y... Z... C...

Radius Example:

G01 X... Y... Z... R...

Explanation

Chamfering is the process of creating a beveled edge at a specific angle and distance. It’s denoted by the ‘C’ parameter in G01 command.

Radiusing involves creating a curved edge or corner, specified by the ‘R’ parameter. It’s essential to note that the control system needs to support these parameters.

Example

Here’s a simple program example for a chamfer and a radius on a part:

N10 G00 X0 Y0 Z1 (Rapid move to starting point)
N20 G01 Z-0.5 F100 (Plunge into material)
N30 G01 X50 Y0 C2 (Chamfer edge with 2mm at 45 degrees)
N40 G01 X50 Y50 R5 (Radius corner with 5mm radius)
N50 G01 X0 Y50 (Complete the square)
N60 G00 Z1 (Retract tool)

Text Diagram:

+-----------------R5-----------------+
|                                    |
|                                    |
|                                    |
C2                                   |
|                                    |
|                                    |
|                                    |
+------------------------------------+

In the diagram, ‘C2’ represents a 2mm chamfer, and ‘R5’ indicates a 5mm radius applied to the corners of a square part.