Start with function and references
Define the mechanism, loads, interfaces and manufacturing route before detailing the part. Establish the main planes, axes and interface geometry so later changes have a clear reference.
A practical route from design intent to a controllable CATIA V5 model, drawing and manufacturing handoff.
Build a model that can change
Use explicit sketch constraints and meaningful parameters. Check the feature tree after changing a controlling dimension. Avoid references to small edges that are likely to disappear during a design change.
Check the assembly
Review the motion envelope, collisions, tool access, fastener installation and service clearance. Compare the CAD assembly with the intended installation and adjustment sequence.
Release a consistent package
Keep the 3D model, drawing revision, material, delivery condition and BOM consistent. Add functional dimensions, datums, fits and inspection requirements to the drawing; the solid model alone does not communicate every manufacturing requirement.
Relevant project
CATIA instruction, reverse engineering and surface modelling →