Inventor has long been known for its iLogic functionality—a way to automate designs using VB.NET code. Inventor 2021 introduced a significant refresh to the iLogic interface and capabilities.
Inventor 2021 built upon its MBD capabilities with semantic annotations. You can now attach tolerances, surface finishes, and datum features directly to 3D geometry. When exporting to STEP 242 (the 3D PMI standard), those annotations remain intact—eliminating the need for 2D drawings in a paperless workflow. Inventor 2021