Sketchup Round Corner Crack ((new)) May 2026

When searching for a "proper" feature to round corners in SketchUp, users are usually looking for a tool that is robust, doesn't break the geometry (creating cracks or black faces), and is easy to use.

While the term "crack" might refer to a specific plugin name you heard, it is more likely you are looking for the industry-standard solution to avoid "cracks" (geometry failures) when rounding corners. sketchup round corner crack

Here is the breakdown of the proper features and plugins to achieve this: When searching for a "proper" feature to round

How it appears

• Thin visible line along a rounded profile when orbiting or rendering.
• Shadows or lighting discontinuities on curved surfaces.
• Cracks that prevent watertight meshes for 3D printing.
• Exported meshes with holes or separated shells.

Method 3: The Pro Workflow (Avoid the Crack Entirely)

The best way to fix the crack is to prevent it. When using Round Corner: Thin visible line along a rounded profile when

• Run "Solid Solver" First: Use Extensions > Round Corner > Solid Solver to fix your geometry before rounding.
• Check "Delete Original Edges": In the Round Corner menu, ensure this box is checked.
• Lower the Segments: Don't use 24 segments for a tiny fillet. Use 6 or 8. High segment counts increase the chance of floating-point errors.

2. Scale Up (The "Giant Object" Trick)

SketchUp hates rounding very small edges. If your object is 1cm wide and you try a 0.5mm fillet, the engine struggles.

• Action: Select all geometry. Use the Scale tool to enlarge the object by 100x (e.g., 1cm becomes 1m).
• Round Corner: Apply the fillet at the scaled-up size.
• Scale Down: Scale the finished object back down by 0.01. The crack will disappear because the math had more "space" to work.