He wasn't just sketching anymore. He was engineering.
| Command | Result | |---------|--------| | | Merge solids | | BooleanDifference | Subtract one solid from another | | BooleanIntersection | Keep common volume | | BooleanSplit | Split solids with another solid | | BooleanTwoObjects | Interactive boolean |
Advanced users know when to freeze history (export final) and when to keep it live (parametric design via Grasshopper).