A good 3D CAD model is not only accurate, but also robust. Many engineers design from shape, while the strongest models are built from structure and intent. The order of features determines how stable a model remains during changes — and how efficiently future revisions can be made.
From shape thinking to feature logic
Feature planning means thinking in cause and effect. Every extrusion, fillet, or cut should logically build on the previous step. This prevents unstable dependencies and makes revisions faster and safer.
• Start with reference geometry, not volume
• Use sketch relations instead of isolated dimensions
• Group logical functions in FeatureFolders
• Minimize in-context references within assemblies
A robust model thinks ahead
By capturing intent — for example through naming, configurations, and comments — every subsequent engineer can understand the logic. Revisions are no longer “figured out,” but continued. This is what separates fast CAD operators from solid engineers.
Predictability is quality
A stable model survives change without surprises. That is not luck — it is the result of structure. And that structure starts with feature planning.
