CHAMFER (Command)¶

Creates an angled bevel (chamfer line) between two lines. The chamfer trims the selected lines and inserts a straight line connecting them at the specified distances or angle.

Quick start

Toolbar > Edit > Chamfer, or type CHAMFER in the Command Panel

Prompts¶

Prompt	Description
Select first line	Pick the first line near the corner to bevel
Select second line	Pick the second line near the corner to bevel

Keywords¶

Keywords are available at each entity selection prompt:

Keyword	Description
Distance	Set chamfer distances (dist1 along first line, dist2 along second line)
Angle	Set chamfer by length along first line and angle from it
Method	Switch between Distance and Angle methods
Trim	Toggle trim mode (entities are always trimmed in current implementation)

How to Use¶

Run the CHAMFER command
Optionally type Distance or Angle to configure chamfer parameters
Click the first line near the corner
Click the second line — the chamfer is created

Command: CHAMFER
Select first line [Distance/Angle/Method/Trim]: (click first line)
Select second line [Distance/Angle/Method/Trim]: (click second line)

Distance Method¶

Sets the chamfer by specifying distances along each line from the intersection.

Command: CHAMFER
Select first line [Distance/Angle/Method/Trim]: Distance
Specify first chamfer distance <10>: 15
Specify second chamfer distance <10>: 10
Select first line [Distance/Angle/Method/Trim]: (click first line)
Select second line [Distance/Angle/Method/Trim]: (click second line)

Setting	Effect
Equal distances (e.g., `10`, `10`)	Symmetric 45-degree bevel
Unequal distances (e.g., `15`, `5`)	Asymmetric bevel
Zero distances (`0`, `0`)	Sharp corner — trims entities to meet at a point

Angle Method¶

Sets the chamfer by specifying the length along the first line and an angle from that line.

Command: CHAMFER
Select first line [Distance/Angle/Method/Trim]: Angle
Specify chamfer length <10>: 12
Specify chamfer angle <45>: 30
Select first line [Distance/Angle/Method/Trim]: (click first line)
Select second line [Distance/Angle/Method/Trim]: (click second line)

The chamfer line starts at the specified length along the first line from the intersection, at the specified angle.

Supported Entity Types¶

Entity type
Line

Note

Both selected entities must be lines and they must intersect for the chamfer to be applied.

Examples¶

Equal Chamfer (45-degree bevel)¶

Command: CHAMFER
Select first line [Distance/Angle/Method/Trim]: Distance
Specify first chamfer distance <10>: 8
Specify second chamfer distance <10>: 8
Select first line [Distance/Angle/Method/Trim]: (click horizontal line)
Select second line [Distance/Angle/Method/Trim]: (click vertical line)

Asymmetric Chamfer¶

Command: CHAMFER
Select first line [Distance/Angle/Method/Trim]: Distance
Specify first chamfer distance <10>: 15
Specify second chamfer distance <10>: 5
Select first line [Distance/Angle/Method/Trim]: (click first line)
Select second line [Distance/Angle/Method/Trim]: (click second line)

Chamfer by Angle¶

Command: CHAMFER
Select first line [Distance/Angle/Method/Trim]: Angle
Specify chamfer length <10>: 20
Specify chamfer angle <45>: 60
Select first line [Distance/Angle/Method/Trim]: (click first line)
Select second line [Distance/Angle/Method/Trim]: (click second line)

Best Practices¶

Practice	Benefit
Set distances/angle before picking entities	Avoids default value surprises
Use equal distances for standard bevels	Clean 45-degree chamfers
Use Angle method for non-standard bevels	Precise angular control
Click near the corner on each entity	Ensures correct portions are kept
Remember selection order	Distance 1 applies to first click, Distance 2 to second
Values persist across uses	Set once, chamfer multiple corners

Quick Reference¶

Task	Input
Start chamfer command	`CHAMFER` or Toolbar > Edit > Chamfer
Set distances	Type `Distance` keyword
Set length + angle	Type `Angle` keyword
Bevel a corner	Click first line, then second line
Symmetric 45-degree bevel	Equal distances (e.g., `10` and `10`)
Undo a chamfer	Ctrl+Z