Use Lines to Tubes or Pipe Along Path from the SketchUp Extension Warehouse. They are free, open-source, and won't lock your hard drive.
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Consider buying the VBO Piping Pro through the KCDA website to ensure you have a verified, functional license. If you'd like, I can help you find official alternatives or tutorials on how to best use the plugin. VBO Piping Pro 3.1.3 - KCDA Use Lines to Tubes or Pipe Along Path
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