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This is CADian.

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1/ Command :

• CNA

2/ Description : This tool allows you to draw a Circle and an Arc simultaneously while automatically generating the Center Line.

• Function: It streamlines drafting tasks where concentric or aligned circular and arc shapes are required.

• Benefit: It automatically draws the center line along with the geometry, saving additional drafting steps.

• Compatibility: This is a dedicated CADian Lisp tool and works only within CADian.

3/ How to Use :

1. Type CNA in the command line and press Enter.

2. Click the Center Point (or the point to establish the center line).

3. Click a point to define the Direction.

4. Enter the Radius of the Circle.

5. Enter the Radius of the Arc.

6. The tool automatically draws the circle, the arc, and the center line.