Lesson goal
Create transitions where a fillet fails, with the right continuity on the neighboring faces.
4 videos
1 exercise
Advanced
Prerequisite: Lesson 3
1. Watch the videos
Dassault Systèmes videos hosted on MySolidWorks: they open in a new tab and a free account is enough. Watch them in order.
Creating a Blend or FadeDelete faces, draw the boundaries and fill for a clean fade where the fillet fails.↗ Filling a Gap with a Loft or BoundaryConnect two areas with different profiles while respecting the neighboring tangency.↗ Boundary SurfacesFill a gap between surfaces and compare with lofts and filled surfaces.↗ Freeform FeatureDeform a face with curves and control points for an organic design.↗
2. Key takeaways
A Filled Surface patches an area closed by edges, with contact, tangency or curvature on each edge.
A Boundary Surface treats both directions equally: often cleaner than a loft for blending existing surfaces.
When a fillet fails, delete the face, draw clean boundaries and rebuild the area with surfaces.
Freeform is for organic touch-ups; for dimensioned geometry, use a sketch-driven feature instead.
Tip
For a blend, set tangency on each edge first, and only move to curvature if the zebra stripes call for it: each level of continuity adds constraints.
3. Do the exercise
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