Objects creation and modification	Modifying existing objects
Creating fillets
Overview     operations     Commands

A fillet connects two objects with an arc that is tangent to the objects and has a specified radius.

An inside corner is called a fillet and an outside corner is called a round; it is possible to create both using the FILLET command.

It is possible to fillet

• arcs
• circles
• ellipses and elliptical arcs
• lines
• polylines
• splines

The FILLET command can be used to round all corners on a polyline using a single command.

Use the Multiple option to fillet several sets of objects without leaving the command.

Setting the filleting radius

The fillet radius is the radius of the arc that connects filleted objects. Changing the fillet radius affects subsequent fillets. If you set the fillet radius to 0, filleted objects will be trimmed or extended until they intersect, but it will not be possible to create an arc.

Trimming and extending filleted objects

it is possible to use the Trim option to specify whether the selected objects are trimmed or extended to the endpoints of the resulting arc or else left unchanged.

Controlling the location of the fillet

Depending on the specified locations, several fillets can be created between the selected objects. Compare the locations of the selections and the resulting fillets in the illustrations.

Filleting a line and polyline combination

To fillet lines with polylines, each line or its extension must intersect one of the segments of line of the polyline. If the Trim option is turned on, the filleted objects and the fillet arc join to form a single new polyline.

Filleting an entire polyline

It is possible to fillet an entire polyline.

After setting a fillet radius other then 0, use the FILLET command to insert fillet arcs at the vertex of each polyline segment that is long enough to accommodate the fillet radius.