If you’ve modeled a box, table, or curved object in SketchUp and noticed a thin crack or seam along a rounded corner on the top face, you’re not alone. That visual artifact often happens when edges, faces, or smoothing settings don’t align perfectly after rounding or chamfering. This post explains why it happens and gives clear, actionable steps to fix it so your model looks clean and exports correctly.
SketchUp gets confused about inside vs. outside faces. sketchup round corner crack top
Developer: Fredo6 Purpose: Adds fillets (rounded edges) and chamfers (beveled edges) to 3D geometry. If you’ve modeled a box, table, or curved
For years, this has been the "gold standard" plugin for SketchUp users wanting to make their models look less boxy. However, it is not without its quirks, the most frustrating of which is the Top Face Crack. After running Round Corner, Zoom in on the crack
After running Round Corner, Zoom in on the crack.