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FredoCorner    v1.1e

  • Overview
  • Quick Start
  • Documentation
  • Release Notes

Overview of FredoCorner

FredoCorner performs the rounding of the edges and corners of 3D shapes along a 2D profile, in 3 modes: Round, Bevel and Subdivision Mesh. FredoCorner also includes a Repair tool to undo any generated shape rounding.

FredoCorner does not replace my previous plugin RoundCorner, which will remain supported separately. FredoCorner will become a paid plugin is a few months. It is Free for the time being.

Note that FredoCorner only works with SU2016 and above.

Compared with RoundCorner, FredoCorner is based on a different algorithm and includes additional features, in particular:

  • Handle more complex shapes, with triangulation at vertices
  • Subdivision mesh
  • Repair / Undo / redo
  • Preview mode
  • Asymmetrical offset
  • Variable offset along borders
  • Works across boundaries of groups and Components
  • Corners are symmetrical
  • Editable corner profiles with Squircles and Bezier
  • More types of corner geometries are supported


Discussion forum

Links to Sketchucation Forum: Main Post   Latest Release


Installation of FredoCorner

IMPORTANT: Make sure that you have first installed LibFredo6 v8.6 or above.

FredoCorner is released as a regular RBZ extension file on the Sketchucation Site.

To download the RBZ file, use the red button on the right side of this page:

  •  Download  If your are already logged in.
  •  Log in to get it!  otherwise, in order to log in or to register to Sketchucation as a new user (this is FREE). Then you will be able to download the RBZ file.

Then, you can install the RBZ file from within Sketchup, via the Sketchup Extension Manager

If you are not familiar with the installation of Sketchup extensions and Sketchucation, it is advised to watch the video LibFredo6 installation.

IMPORTANT: Whatever way you choose, you MUST quit and restart Sketchup to get FredoCorner (and LibFredo6) properly loaded.

After the installation, you should have the following footprint in the Sketchup Plugins directory:

  • Sketchup versions: 2016 and above - certified for SU2018
  • Platform: Windows and Mac OSX
  • Language: English, French, Spanish partial (byOxer) , Chinese partial (by Arc) - thanks to all kind translators
  • Menus: by default, it is installed in Tools > Fredo6 Collection > FredoCorner...
  • Icon toolbar: FredoCorner

Permission to use this software for any purpose, subject to license, is hereby granted

Distribution of this software for any purpose is subject to:

  - the expressed, written consent of the author

  - the inclusion of the present copyright notice in all copies.

Overview of the User Interface

Here is an introduction to the User Interface of FredoCorner, in particular: - the Button Palette - the Selection of edges - the Preview mode - the Generation of the final geometry

Some element of the user interface (Profile editor, Repair, Variable offset) will be documented in separate videos.


Working across the boundary of Components and Groups

FredoCorner works across the boundaries of Groups and Components at any level. The offset is however always specified in top-level model coordinates. So, this imposes to take a few precautions when you have several instances of components.


NO documentation at the moment. This will come!

Links to Sketchucation Forum: Main Post   Latest Release

Release History

FredoCorner 1.1e - 23 Sep 18: Bug fixing (variator)

FredoCorner 1.1d - 19 Sep 18: Bug fixing + Full Spanish translation (by Oxer) + Full Chinese (by Arc)

FredoCorner 1.1c - 11 Sep 18: Bug fixing + Full French translation + Partial Chinese (by Arc)

FredoCorner 1.1b - 08 Sep 18: Fix for Orbit Mac, Spanish translation, and Default for Repair Double-click

FredoCorner 1.1a - 06 Sep 18: First public release