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Utility Archive · 2026.02.25 [Lisp #107] RL : Line with Auto-Fillet
Hi, This is CADian. We have prepared 400+ Lisp programs to aid your CAD experience, free of charge! Full List of all CADian Lisps : [Full CADian Lisp List] How to Install : [CADian Lisps Download & Install Guide] ==================================================== 1/ Command : RL 2/ Description : This tool allows you to draw lines while simultaneously applying a fillet (rounding) between them. Functionality: It combines drawing lines and the fillet command into a single continuous action. You define a radius, draw sequential lines, and the corners are automatically rounded. Compatibility: This is a dedicated CADian Lisp tool and works only within CADian. 3/ How to Use : Type RL in the command line and press Enter. Enter the Fillet Radius value. Click the First Point to start the line. Draw subsequent lines by clicking points (e.g., Point 2, Point 3) or using dynamic input (e.g., set direction and type length like 100 Enter). As you continue drawing, the corners between the lines are automatically filleted with the specified radius.

Utility Archive · 2026.02.25

[Lisp #107] RL : Line with Auto-Fillet

Hi,

This is CADian.

We have prepared 400+ Lisp programs to aid your CAD experience, free of charge!

Full List of all CADian Lisps : [Full CADian Lisp List]

How to Install : [CADian Lisps Download & Install Guide]

====================================================

1/ Command :

2/ Description : This tool allows you to draw lines while simultaneously applying a fillet (rounding) between them.

Functionality: It combines drawing lines and the fillet command into a single continuous action. You define a radius, draw sequential lines, and the corners are automatically rounded.
Compatibility: This is a dedicated CADian Lisp tool and works only within CADian.

3/ How to Use :

Type RL in the command line and press Enter.
Enter the Fillet Radius value.
Click the First Point to start the line.
Draw subsequent lines by clicking points (e.g., Point 2, Point 3) or using dynamic input (e.g., set direction and type length like 100 Enter).
As you continue drawing, the corners between the lines are automatically filleted with the specified radius.

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3/ How to Use :