To Fillet a Corner Without Trimming (AutoCAD Mechanical Toolset)

When you fillet a corner without trimming, the fillet is added without removing the corner, as shown in the illustration below.

1. Click Home tabModify panelFillet. Find
2. On the ribbon, in the Fillet Options panel, check the fillet size. To change the fillet radius:
   • Click <Current tab>Fillet Options panelFillet Size drop-down. Find
3. Clear <Current tab>Fillet Options panelTrim Geometry. Find.
4. Click an empty space in the drawing area.
5. Select the first line or arc that forms the corner.
6. Select the second line or arc that forms the corner.
7. Press ESC to exit the command.