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Create Chamfers

May 20, 2011

        You can connect two nonparallel objects by extending or trimming them and then joining them with a line to create a beveled edge. You can chamfer lines, polylines, rays, and infinite lines. When creating a chamfer, you can specify how far to trim the objects back from their intersection (distance distance method), or you can specify the length of the chamfer and the angle it forms along the first object (distance angle  method).

       When chamfering a polyline, you can chamfer multiple segments between two selected polyline segments, or you can chamfer the entire polyline.

      If two objects to chamfer on the same layer, the chamfer line lies on the layer as the object does; otherwise, the chamfer line lies on the current layer which controls the properties of the line. The mUltiple option can help you chamfer multiple objects at one time.

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Chamfer by Specifying Distances

      The chamfer distance is the amount each entity 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 entities until they intersect instead of creating a chamfer line.

     The default setting for the first distance is the last one you have specified, and the second distance is the same as the first one. However, you can reset the desired chamfer distance.


To chamfer two objects using the distance-distance method

  1. Choose Modify > Chamfer.

  2. On the command line, type s.

  3. In the Drawing Settings dialog box, click the Entity Modification tab.

  4. Under Chamfer Distances And Angles, click Distance Distance.

  5. Under Chamfer Distances And Angles, specify the first and second chamfer distances.

  6. Click OK.

  7. Select the first object.

  8. Select the second object.

Modify toolbar\

Command line CHAMFER

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Select the first (A) and second (B) objects The chamfer is drawn, based on the first (C) and second (D) chamfer distances

Trim and Extend Chamfered Objects

       If the objects to chamfer are two intersecting lines, and you select Trim option to chamfer objects, system automatically trims lines to the endpoint of chamfered line. If the selected lines are not intersecting with each other, system extends them to get intersectant.

     If you select No Trim, system creates chamfer directly and not to trim.


Chamfer by Specify Length and Angle

You can chamfer objects by specifying a start point and an angle.

To chamfer two objects using the distance-angle method

  1. Choose Modify > Chamfer.

  2. On the command line, type s.

  3. In the Drawing Settings dialog box, click the Entity Modification tab.

  4. Under Chamfer Distances And Angles, click Distance Angle.

  5. Under Chamfer Distances And Angles, specify the chamfer distance and angle.

  6. Click OK.

  7. Select the first object.

  8. Select the second object.

Modify toolbar \

Command line CHAMFER

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Select the first (A) and second (B) objects The chamfer is drawn, based on the distance (C) and the angle (D)

Chamfer Polylines and Polyline Segments

        You can create a chamfer line for two segments of a polyline that are adjacent or separated by no more than one arc segment. As shown in the illustration, if they separated by a arc segment, the arc is deleted and replaced with a chamfer line.

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To chamfer selected vertices in a polyline

  1. Choose Modify > Chamfer.

  2. Select the polyline along the segment where you want to begin the chamfer.

  3. Select the polyline along the segment where you want to end the chamfer.

Modify toolbar \

Command line CHAMFER

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Select the polyline along the (A) and (B) segments Result after chamfering

Chamfer an Entire Polyline

        You can use Polyline option to create chamfer lines for each intersection of an entire polyline. To get the best results, keeps the first and second chamfer distance equal.

To chamfer all vertices in a polyline

  1. Choose Modify > Chamfer.

  2. On the command line, type polyline.

  3. Select the polyline.

Modify toolbar \

Command line CHAMFER

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Original polyline Result after chamfering

When chamfering an entire polyline, only accommodated chamfer distance can create a chamfer line. As shown in the illustration, some segments are too short to create a chamfer line.

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Commands Reference

CHAMFER: Bevels the edges of objects

System Variables Reference

CHAMFERA: Sets the first chamfer distance

CHAMFERB: Sets the second chamfer distance

CHAMFERC: Sets the chamfer length

CHAMFERD: Sets the chamfer angle

TRIMMODE: Controls whether selected edges for chamfers and fillets are trimmed

 

 

 


 

 

 

 

 

 

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