To make a sketch "robust," you must apply geometric constraints (like parallelism or tangency) and dimensional constraints (exact measurements). A fully constrained profile in CATIA turns green ; an over-constrained one turns purple .
Every 3D part begins as a 2D profile. The Sketcher workbench is where you define the basic shape.
Located on the left, this chronological "history" tracks every element you create, from sketches to finished parts.
This critical tool helps identify "open" profiles or isolated lines that might prevent you from creating a solid 3D part. 3. Part Design: Transforming Sketches into Solids
The Part Design workbench is the heart of mechanical modeling. Typical manual lessons cover: CATIA V5 Fundamentals Training Course - TriMech Solutions