I am casting about for a replacement for my trusty Sketchup program. I have used it for years but want a more fully featured CAD for engine projects. I tried the home version of Fusion 360 last winter and spent hours running tutorial videos. I found the logic and flow of that program problematic. No matter how I had things arranged in the 3D view editing the sketch made everything pile up at the origin. Editing gears was really confusing. Not happy with that program. Looking around a bit I found the $99 version of Solidworks. Does anybody have any experience with it? How would it compare with Fusion in terms of operation and interface? I want something good at assemblies and analysis of moving parts.