What are the best practices for creating fully defined sketches in SolidWorks?

How do experienced users ensure all sketches are fully defined while keeping them clean and editable? I want to avoid over-defining or leaving under-constrained geometry, especially in complex part design.
1 Answer

Start with a clear origin – Always anchor your sketch to the origin to avoid floating geometry.
Use relations smartly – Add vertical, horizontal, equal, and symmetric relations where possible.
Dimension early – Apply key dimensions as you sketch, not after everything's done.
Avoid over-defining – More isn’t always better—watch for conflicts.
Keep it simple – Break complex shapes into smaller, manageable sketches.
Sketch in 2D – Stay in one plane unless 3D sketching is necessary.
Use construction geometry – Great for guides and references without affecting your part.