It looks like you’re trying to find or verify the Curviloft plugin for SketchUp 2015, specifically version 1.5d (or 1.5.5), often labeled as “1.5d 64” for 64‑bit systems.
Here’s the properly formatted information you need:
You will not find an official "Curviloft v66" on Fredo6’s official forum (SketchUcation). The standard public versions were 1.7a, 1.8a, 1.8d, and 1.9a.
So, what is "66" ?
Based on community archives and file-naming conventions from 2015-2016, "66" likely refers to:
Curviloft_v1.8d_66.rbz where "66" is a patch indicator for SketchUp 2015 32-bit vs. 64-bit compatibility.Critical Fact: Curviloft version 1.8d is the last stable version that works flawlessly with SketchUp 2015 (both 32-bit and 64-bit). Version 1.9a requires SketchUp 2016 or newer. curviloft plugin sketchup 2015 66
Thus, when you search for "Curviloft plugin SketchUp 2015 66," you are effectively looking for Curviloft 1.8d (or earlier) that is compatible with the 2015 API.
Move (Ctrl for copy) to duplicate it upwards 5 meters. You now have two horizontal lines.If you are running this plugin on SketchUp 2015, you may encounter specific hiccups:
Because SketchUp 2015 is nearly a decade old, official download links are dead. Here are safe, legitimate sources:
SketchUcation Plugin Store (Archived):
Internet Archive (Wayback Machine):
web.archive.org/web/*/fredo6.com/curviloftRussian 3D forums (for archival purposes only):
Do NOT use 2020-2025 versions (Curviloft v2.0a). They require SketchUp 2017+ and will crash 2015 immediately.
For the SketchUp 2015 user, Curviloft is not just a plugin; it is a gateway to a new style of modeling. It bridges the gap between the rigid, rectilinear world of standard SketchUp and the fluid, organic world of high-end design.
Whether you are modeling a custom piece of furniture, a concept car, or a sweeping architectural canopy, Curviloft provides the mathematical precision needed to "skin" your ideas with ease. By understanding its installation requirements (LibFredo6) and mastering its Lofting and Junction tools, you can unlock the full potential of SketchUp 2015.
Curviloft: The Ultimate Skinning and Lofting Plugin for SketchUp 2015 It looks like you’re trying to find or
For SketchUp 2015 users, Curviloft remains an indispensable extension for tackling organic geometry that the native toolset cannot easily handle. Created by the prolific developer Fredo6, Curviloft specializes in "lofting" and "skinning"—the process of generating complex surfaces from a set of contour lines or edges. Core Tools and Functions
Curviloft is essentially a suite of three powerful tools designed to turn simple lines into sophisticated 3D forms:
Loft by Spline: This tool creates a smooth surface between a series of separate contours. It is ideal for creating complex, tapering shapes like furniture legs or organic architectural pillars.
Loft Along Path: Similar to SketchUp's native "Follow Me" tool, but far more advanced. It allows you to loft multiple different shapes along a single rail curve, enabling transitions from a square to a circle over a curved path.
Skinning (Skin Contours): This allows you to create a "skin" or surface over a frame of edges. It is frequently used for modeling tensile structures, glass exteriors, and irregular roof forms. Installation for SketchUp 2015 An internal build number from Fredo6’s LibFredo6 library
To successfully run Curviloft on SketchUp 2015, you must follow a specific installation sequence, as the plugin relies on a shared library to function. Curviloft - SketchUcation
Curviloft is a powerful extension by Fredo6 for lofting, skinning, and extruding along paths. Since SketchUp 2015 is a 32-bit and 64-bit compatible version, this guide focuses on stable workflows for that era.