Download the .rbz file (recommended over .rbs ) and install it via the SketchUp Extension Manager. Alternatively, place the plugin files manually into the Plugins or Tools folder of your SketchUp installation directory.
Blender users often utilize a dedicated 3D Rad Exporter script, compatible with versions like . 3d rad exporter plugin
The 3D Rad community has developed versions of this exporter for different modeling suites: 1. SketchUp Download the