AutoCAD Tips
How to Fillet without Trimming the Original Objects in AutoCAD
Fillet a corner in AutoCAD without trimming the original objects by setting Trim mode to No trim, a trick that also works with Chamfer.
AutoCAD Tips
How to Fillet (Chamfer) along Entire Polyline in AutoCAD
Fillet or chamfer every corner of a polyline in one go in AutoCAD with the FILLET command, using the Radius and Polyline options.
AutoCAD Tips