Using CHAMFER is a fast way of creating a line between two nonparallel lines. It is usually used to represent a beveled edge on a corner. CHAMFER can also be used to bevel all corners of a polyline.
You can chamfer lines, polylines, xlines, and rays. With the distance method, you specify the amount that each line should be trimmed or extended. With the angle method, you can also specify the length of the chamfer and the angle it forms with the first line. You can retain the chamfered objects as they were before the chamfer, or you can trim or extend them to the chamfer line.
If both objects being chamfered are on the same layer, the chamfer line is created on that layer. Otherwise, the chamfer line is created on the current layer. The layer affects the chamfer color and linetype.
The chamfer distance is the amount each object is trimmed or extended to meet the chamfer line or to intersect the other. If both chamfer distances are 0, chamfering trims or extends the two objects until they meet but does not create a chamfer line.
The default setting for the first distance is the last distance specified. Because symmetrical distances are common, the default setting for the second distance is whatever you chose for the first distance. However, you can reset the chamfer distances.
In this example, you set the chamfer distance to 0.5 for the first line and 0.25 for the second line. After you reset the distances, you are returned to the Command prompt.
By default, objects are trimmed when chamfered, but you can use the Trim option to specify that they remain untrimmed.
You can chamfer two objects by specifying where on the first selected object the chamfer line starts, and then the angle the chamfer line forms with this object.
In this example, you chamfer two lines so that the chamfer line starts 1.5 units from the intersection along the first line and forms an angle of 30 degrees with this line.
If the two objects you select for chamfering are segments of a polyline, they must be adjacent or separated by no more than one arc segment. If they are separated by an arc segment, as shown in the illustration, chamfering deletes the arc and replaces it with a chamfer line.
When you chamfer an entire polyline, each intersection is chamfered. For best results, keep the first and second chamfer distances equal.
In this example, both chamfer distances are set to equal values.
When you chamfer an entire polyline, AutoCAD LT chamfers only the segments that are long enough to accommodate the chamfer distance. The polyline in the following illustration has some segments too short to be chamfered.
