To Chamfer an Entire Polyline (AutoCAD Mechanical Toolset)

You can chamfer all vertexes of a polyline at the same time.

Note: Only the line segments that are long enough to accommodate the chamfer are chamfered.
  1. Click Home tabModify panelFillet drop-downChamfer. Find
  2. Enter P for polyline.
  3. Click <Current tab>Chamfer Options panelFirst Chamfer drop-down. Find
  4. Select a value for the first length.
  5. Click <Current tab>Chamfer Options panelSecond Chamfer drop-down. Find
  6. Select a value for the second length.
  7. Click an empty space in the drawing area.
  8. Select the polyline.
  9. Press ENTER.
  10. Press ESC to exit the command.