SketchUp cracks or missing faces during rounding occur when geometry falls below the application’s 0.025 mm tolerance limit, commonly resolved by scaling up the model by 100x or 1000x before applying the RoundCorner tool. Alternative solutions include reducing the segment count or switching to the more robust FredoCorner plugin for complex intersections. To learn more about fixing these issues, see the discussion at SketchUcation. Round Corner Issues | sketchucation
Scale Up a Copy: Make a copy of that component and scale it up significantly (e.g., 100x or 1000x).
The Round Corner algorithm works by offsetting edges and trimming geometry. When you apply a fillet to a vertical edge that meets a flat top surface, the extension tries to blend the curve into the plane. If the radius of the corner is too large relative to the thickness of the top slab, the geometry collapses into itself, creating "cracks." sketchup round corner crack top
2. Hidden Geometry Conflict SketchUp models often have "hidden geometry" or stray lines that users aren't aware of. If you try to round an edge that crosses a hidden intersection line, the plugin gets confused about where the surface stops and starts, leading to a tear in the mesh.
Here’s how to fix those cracks and prevent them from ruining your next project. 1. The "Dave Method" (Scaling Up) SketchUp cracks or missing faces during rounding occur
Title: Round Corner creating a "cracked" or faceted top surface? (Fix inside)
Often, the crack isn't a hole; it's a hidden edge or a reversed face. Zoom into the crack top. Round Corner Issues | sketchucation Scale Up a
: A larger rounding radius creates larger faces that are easier for SketchUp to process. Try FredoCorner Fredo6 released a newer version of the tool called FredoCorner