This is the newer, more powerful tool. It uses an improved algorithm that handles complex, irregular shapes much better than its predecessor. It includes a Repair button and parametric abilities, allowing you to edit or undo rounding if it creates a crack.
Pro Tip: If the giant copy works but the original is still cracked, try right-clicking the original component and selecting Reload . This sometimes forces the geometry to update.
This issue is rarely a bug in the plugin itself. Instead, it is usually caused by SketchUp's internal geometric tolerances, tiny scaling issues, or messy base topology. Why the "Crack" Happens sketchup round corner crack top
More segments create a smoother curve, but they also increase the likelihood of a geometric crack.
The crack or gap at the top of a rounded corner in SketchUp is usually caused by a few factors: This is the newer, more powerful tool
Erase any internal coplanar edges on the top surface that touch the corners you want to round.
Here's a step-by-step guide to fix the SketchUp round corner crack top: Pro Tip: If the giant copy works but
Download these free extensions from the SketchUp Extension Warehouse.
Never run a rounding operation on loose, ungrouped geometry. Always isolate your object into a Group or Component first.
SketchUp has difficulty forming very small faces (under 1mm or 1/16 inch). When you round a corner with a high segment count, the resulting faces may be too small for SketchUp to "heal," leaving a gap or crack.