Sketchup's native tools can make modeling soft edges a chore. The extension by Fredo6 is the industry-standard solution for creating smooth, beveled, or rounded edges instantly. Why Use the RoundCorner Extension?
Note: While many of Fredo6's plugins were historically free, some have transitioned to a small "donation-ware" licensing fee for newer versions of SketchUp. Always check the SketchUcation page for the most current version compatibility. an .RBZ file once you've downloaded it? Round Corner Extension Sketchup Free Download
Alternative to RoundCorner Plugin? - Extensions - SketchUp Forums Sketchup's native tools can make modeling soft edges a chore
You can download the original library. Here is the safe, legal way to get it (since Fredo6's official site is the only source): Round Corner Extension Sketchup Free Download