Sketchup Round Corner [updated] Crack Top

These geometric tears ruin your model's look and break it for 3D printing or rendering. Understanding why SketchUp splits these top faces allows you to apply simple fixes to keep your geometry clean. Why Does the "Crack Top" Issue Happen?

Fixing a physical fracture or crack on the rounded corner of a countertop, table, or surface?

Perform the rounding operation (using tools or plugins) on the giant copy.

If you've ever typed "sketchup round corner crack top" into a search engine, you know the frustration firsthand. You're not alone. This seemingly minor issue—the failure of a rounded edge to properly merge with a connecting face—is a classic stumbling block in SketchUp. It's a challenge that can turn the final step of a project into a major, time-consuming repair job. sketchup round corner crack top

Sometimes the rounding works, but the top face of your object disappears or becomes fragmented.

Which are you currently using to round the corners?

A standard face in SketchUp must be perfectly flat (planar). If your top surface is even slightly warped, skewed, or has hidden triangulated geometry, the rounding tool will lose its path and break the top surface apart. These geometric tears ruin your model's look and

If RoundCorner keeps cracking your tops, the current modern alternative is (by ThomThom). It uses a different boolean engine that is often more robust at handling intersections without cracking, though the workflow is slightly different (you subtract shapes rather than selecting edges).

Select the copy and use the to scale it up by 100x or 1000x .

This is the most reliable workflow for fixing micro-geometry issues in SketchUp. Because SketchUp cannot create tiny faces but can preserve them, scaling your model up temporarily solves the problem. Select your object. Turn it into a . Duplicate the component and move it to the side. Fixing a physical fracture or crack on the

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Provide a direct link to find and install the extension via the SketchUp Extension Warehouse

Whether the top of your model collapses into a hole, the shading goes haywire, or the plugin simply throws an error (such as "invalid edge has coplanar faces" or "corner at fault"), this guide will walk you through why these cracks happen and how to fix them permanently.

If plugins are causing cracked geometry, you can avoid third-party extension errors entirely by utilizing SketchUp's native tool: Draw your tabletop to its exact flat dimensions.

plugin in SketchUp, it is usually due to the software's difficulty in creating tiny faces. SketchUcation Why Your Top Face is Cracking Tiny Face Limitation