I started using Sketchup 6 months or so back. I generally use it for DIY projects, and do CAD drawing exercises for practice. This particular drawing has me stumped. I cannot fathom how to replicate the smooth slopes that butt upto the radius. I’ve tried numerous methods, with auto fold and curvi loft, isolating sections of geometry etc but cannot seem to achieve the result pictured in the drawing without geometry becoming funky. Any help and explanation would be much appreciated.