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FredoSpline    v2.6a

  • Overview
  • Documentation
  • Release Notes

Overview of FredoSpline

  • Sketchup version: SU2017 and above
  • Platform: Windows and Mac OSX
  • LibFredo6: v14.3b or above
  • Usage: Paid, Licensed under Sketchucation SCFLicense v4.4.0
    • Free Trial period (full features): 15 days from activation
    • Perpetual license (3 seats): $25 (~22€)
    • Rush license (3 seats, valid 21 days from purchase date): $8 (~7€)
    • Information on licensing extensions at Sketchucation: this post

To purchase a license of FredoSpline, go to this page

FredoSpline is an extension dealing with Curves based on Control Points.

It includes the following families of curves

  • Bezier: Smooth curves NOT passing through the control points
  • Fit Spline: Smooth curves passing through the control points with local or global control
  • Polycorner: Polylines with configurable shaping of corners at each vertex
  • Polyline: Polylines with division patterns

Discussion forum

Links to Sketchucation Forum: Main Post Latest Release

Installation of FredoSpline

IMPORTANT: Make sure that you have first installed LibFredo6.

FredoSpline 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 FredoSpline (and LibFredo6) properly loaded.

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

  • Language: English
  • Menus: by default, it is installed in Tools > Fredo6 Collection > FredoSpline...
  • Icon toolbar: FredoSpline
Credit: all toolbar icons and button images by JClements

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.

Full documentation is provided in the Instructor window accessible from within the extension.

You can also consult the extracted PDF attached in the main post of the FredSpline forum page

Links to Sketchucation Forum: Main Post   Latest Release

Release History

FredoSpline 2.6a - 01 Apr 24: Future compatibility

FredoSpline 2.5a - 01 Mar 23: Fix a weird issue specific to SU2023 related to Convert Curve within context

FredoSpline 2.4a - 25 Dec 22: Suppression of date of validity

FredoSpline 2.3a - 01 Nov 21: Minimum number of segments for PolyCorner curves

FredoSpline 2.2a - 31 Aug 21: Extension of validity

FredoSpline 2.1a - 22 Apr 21: Performance of selection contextual menu

FredoSpline 2.0a - 24 Jan 21: FredoSpline becomes a paid plugin licensed under Sketchucation

FredoSpline 1.7a - 06 Jan 21: Extension of validity

FredoSpline 1.6a - 19 Nov 20: Help in separate dialog and extension of validity

FredoSpline 1.5a - 19 Aug 20: Cosmetic adjustments and extension of validity

FredoSpline 1.4a - 01 Jun 20: Bug fixing and cosmetic adjustments, most for Mac (keyboard)

FredoSpline 1.3a - 25 May 20: Bug fixing and cosmetic adjustments, most for Mac

FredoSpline 1.2a - 29 Apr 20: First version that should work on Mac

FredoSpline 1.1a - 22 Apr 20: Initial public release