Once you start modeling for 3D printing, you may want some help cleaning up models to make them solid, manifold, and watertight. Have we got the extensions for you! ThomThom's Solid Inspector and CleanUp to the rescue! They make it easy to prepare your SketchUp model to send to a 3D printer through slicing software. Solid Inspector https://extensions.sketchup.com/extension/aad4e5d9-7115-4cac-9b75-750ed0902732/solid-inspector CleanUp https://extensions.sketchup.com/extension/046175e5-a87a-4254-9329-1accc37a5e21/clean-up TT_Lib² https://extensions.sketchup.com/extension/c03a2b93-3365-4ef1-95f4-f35158757622/tt-lib Want to learn more skills? Check out our SketchUp community forums: https://forums.sketchup.com , more videos on our YouTube channel: https://www.youtube.com/SketchUp , or SketchUp Campus: https://learn.sketchup.com Want to use SketchUp? View our different plans: https://www.sketchup.com/plans-and-pricing Read our blog for more learning content as well as industry insights from architects, interior designers, urban planners, and more: https://blog.sketchup.com Follow us on Twitter https://twitter.com/sketchup , Instagram https://www.instagram.com/sketchup_official , Facebook https://www.facebook.com/sketchup , and LinkedIn https://www.linkedin.com/company/sketchup to stay up to date on our newest features and releases.