2.4.14. FILLET COMMAND

The FILLET COMMAND connects two objects with a round arc of a specified radius.

The Fillet command is used in CAD software to create a smooth, rounded corner between two intersecting lines or objects. It takes the two lines and adds a curved arc where they meet, which is especially useful for visual aesthetics and structural integrity in designs.

Imagine you are building a piece of furniture with sharp corners. Using the Fillet command is like sanding down those corners to make them rounder and safer to touch. This finishing touch not only looks better but also prevents potential injuries from sharp edges.

COMMAND: FILLET. Polyline/ radius/ trim/ ; select the first object or press enter. Select second object; select second object, if ‘R’ is entered. Enter fillet radius < current >; enter radius required for round arc.

To use the Fillet command, you first enter 'FILLET' in the command prompt. You then choose whether you're working with a polyline or regular lines, and you decide the radius of the round corner you want to create. This process involves selecting the first line, followed by the second line, which will help the software know where to draw the arc. The choice of radius affects how curved the corner will appear.

Think of it like making a cake. When you want to round off the edges of your cake, you decide how round you want them based on the icing you have. The Fillet command’s radius setting is similar; it determines how much curve you want at the corners, just like how you can choose between a subtle curve or a dramatic round edge on your cake.

Polyline; insert fillet arc at each corner of 2D objects where two line segments meet. Trim: controls whether AutoCAD trims the selected edges to fillet. No trim; does not trim the selected edge.

When using the Fillet command, you have options that influence how the edges will be treated. For instance, if you choose 'Trim,' the software will cut the lines back to the point where the fillet begins, creating a cleaner look. If you select 'No trim,' the original lines will stay intact, with the fillet arc added without altering the end points of the lines.

This can be compared to pruning a plant. If you trim the edges (as in using the 'Trim' option), you make the plant look more polished and controlled. On the other hand, if you choose not to trim (using the 'No trim' option), you leave the edges intact, though they might appear a bit unkempt. The choice depends on whether you prefer sharp edges or smooth transitions in your design.

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