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1/ Command :

• 4R

2/ Description :

This tool automatically applies a Fillet (Rounding) to all four corners of a rectangle (Polyline or Lines) at once.

• Batch Processing : Instead of filleting each corner individually, you can fillet the entire shape in one go.

• Versatility : Works on both standard orthogonal rectangles and rotated (inclined) rectangles.

3/ How to Use :

1. Type 4R in the command line and press Enter.

2. Enter the Radius value for the fillet.

3. Select the rectangle using a Window　Selection (click outside the object and drag to encompass it, as shown in the blog's example image).

4. The tool automatically rounds all four corners of the　selected rectangle.