Phá Khối SketchUp 1 Click — Explode Deep Hàng Loạt

When a SketchUp model has groups and components nested across many layers, editing forces you to explode each level one by one. Use the Explode Deep Selected tool to explode all SketchUp groups and components in one click — automatically, all the way to raw geometry. This is most useful when you need every solid on the same level to run Solid Tools, or when a downloaded component has an excessively deep hierarchy that slows editing.

Video: Explode All SketchUp Groups in 1 Click

What “Explode All” Actually Means in SketchUp

SketchUp’s native Edit > Explode only removes one level of wrapping. If you have a component containing a group containing raw geometry, you must explode twice to reach the faces and edges. The native shortcut does not let you explode group in SketchUp recursively in a single pass.

Explode Deep Selected solves this. It walks the entire hierarchy of every selected object and explodes every nested group and component until nothing remains except raw geometry — faces, edges, and loose geometry — all at the top level of your model or the current open context.

Common scenarios where this matters:

• A furniture component downloaded from the 3D Warehouse with 4–6 nesting levels
• An imported CAD/DWG that wrapped everything in multiple group shells
• Preparing geometry for Solid Tools — operands must share the same context
• Flattening a model before export to CNC or laser-cutting software

How to Explode All Groups in SketchUp — Step by Step

1. Select what you want to flatten. Click one object, drag a selection box, or press Ctrl+A to select everything in the current context. You can run explode group in SketchUp on a subset of your model — only selected objects will be affected.
2. Click the Explode Deep Selected tool from the toolbar or trigger it from the Extensions menu. No dialog appears — the operation runs immediately.
3. Confirm the result. Open Entity Info (Window > Entity Info). Everything should now report as Edge or Face rather than Group or Component Instance.
4. Purge unused definitions. Go to Window > Model Info > Statistics > Purge Unused. Exploding instances does not delete their component definitions — definitions stay in memory until purged.

The whole operation takes under two seconds on a model with hundreds of nested objects. This is the practical way to explode all SketchUp groups at once without repeating the native Explode command.

Tags and Materials After You Explode All Groups

Explode is not a clean “unwrap.” It changes both tags and materials, and the results are not always what you expect.

Tags (Layers)

Geometry in SketchUp should live on Untagged. Groups and components carry the tags. When you explode group in SketchUp, the raw faces and edges inherit the tag of their parent container. If you explode deep, every face inherits the tag of the outermost group. Toggling that tag off later will hide all the geometry you just flattened — a common source of confusion.

Fix: After exploding, select all (Ctrl+A), open Entity Info, and reassign the tag to Untagged.

Materials

SketchUp paints faces in two ways: a material assigned directly to the face, or a material assigned to the parent group that the face “inherits” (displayed as Default inside the group). When you explode all SketchUp groups:

• Faces painted with Default absorb the group’s material — they visually change color
• Faces painted with a specific material keep their own material unchanged

A group that looks like a single uniform color on screen can explode into a patchwork of surfaces — some with the old group material baked in, some with their original face materials. Check materials in the Materials Browser before exploding if color accuracy matters.

Locked Objects

Locked groups and components are skipped entirely. Explode Deep Selected cannot penetrate a lock. If your hierarchy stops partway, right-click the remaining group and choose Unlock, then run the tool again.

Explode All SketchUp Groups vs. Explode Group SketchUp Native — When to Use Each

Method	Levels removed	Selection required	Best for
Edit > Explode (native)	1	Yes	Removing a single wrapper while keeping inner structure
Explode Deep Selected	All (recursive)	Yes	Flattening everything to raw geometry in one pass

Use native Explode when you need surgical control — for example, keeping sub-components intact while removing only the outer group. Use Explode Deep when you want all SketchUp groups gone in a single operation and raw geometry is the goal.

Use Cases: When Explode All SketchUp Is the Right Move

• Solid Tools: Boolean operations (Union, Subtract, Intersect) require both operands to be solids in the same context. Nested components break this. Flatten first, then run Solid Tools.
• Intersect Faces: Intersect Faces with Model only cuts geometry in the same context. Deep groups won’t interact. Explode all groups first.
• CNC / laser export: DXF exporters and CAM software expect flat face/edge geometry, not a SketchUp component tree.
• Cleanup before share: Stripping hierarchy makes a file easier to hand off to collaborators who don’t need the original structure.
• Reducing file size: Deeply nested components sometimes carry duplicate definition data. Exploding and purging can trim file size noticeably.

Common Issues & FAQ

When geometry is flat at the same level, operations like Solid Tools, Intersect Faces, and CAD/CNC export all work correctly. Explode Deep Selected is the fastest way to reach that state without clicking through every nesting level by hand.