What you should do before getting into BIM.
Before you study BIM you should study a bit of parametric modelling, and architectural design and construction. Having a modicum of understanding of logic and database management is also helpful. It’ll also help if you’re familiar with typical architectural (I’m including structural, civil, & MEP here) document conventions and practices. That in mind, forget how you do it in CAD, you’re learning a new tool. You didn’t bring your protractor and T-square along to your CAD workstation, don’t assume that a familiar CAD workflow is practical. A crash course in something like Inventor (even Autodesk’s self-guided tutorials if they haven’t nerfed them) that teaches you to think about simple constraints, how they interact, and what you can do with them will make it much easier to think about how those constraints get much more complex when driving multiple assemblies. If you don’t grok how footings, foundations, walls, trusses, etc all work together, and actually get assembled, you’...