3skeng Plugin Sketchup Free ((free)) Page
There is no permanent "free" version of the 3skeng plugin. The developers offer a (depending on the specific tool) that allows you to experience the full functionality of the software.
3skeng is a plugin for SketchUp that allows you to create complex, parametric 3D models using a simple and intuitive interface. It provides a range of tools for creating and manipulating 3D objects, including extrusions, sweeps, and lofts. 3skeng plugin sketchup free