Instead of creating round edges, Bevel allows you to add a simple bevel to your edges. The benefit to this is that your corners terminate in a more symmetrical way. This tool is very similar to the round corners tool – it also rounds off your edges, but it creates the corners in a way that the edges that are created come to a point, rather than to a curve. This particular tool will take the corners and round them off, and you can also set the number of segments created in each curve that makes up your rounding.
It will basically take your edge and round it off to a curve. This tool is designed specifically to create rounded corners and edges. These tools allow you to take edges in SketchUp and round them off. This extension basically contains 3 tools – Roundcorner for SketchUp Function Description
