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Cross Section Viewer

See inside the model. Slice through your mesh visually to inspect internal structure, hidden geometry, and print-relevant sections.

Internal inspection

Upload a model and inspect its hidden internal structure

Move through sectional slices to understand cavities, enclosed regions, shell continuity, hidden geometry, and print-relevant internal behavior.

Interpretive viewer

This experience combines sectioned visualization with practical insights so users can understand what the current slice means, not just where it is.

Accepted file types: STL, OBJ
File name No file selected
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Section Controls

Move through the model intentionally

Change axis, position, and section depth to reveal internal features and inspect how structure changes across the part.

Section position 50%
Section depth 8%
Ready Upload a model to inspect internal structure and hidden geometry.

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Upload a model to explore internal cavities, sectional continuity, enclosed regions, and hidden geometry across X, Y, and Z slices.

Inspect 3D Models with Cross Section Views

Cross section viewing lets you slice through a 3D model to inspect its internal structure. This is essential for verifying that hollowed parts have adequate wall thickness, checking for enclosed voids, and understanding the internal geometry of complex assemblies before printing.

Why Cross Section Analysis Matters

Upload your STL file and move the cutting plane to slice through your model in any direction. Free to use, no signup required. Also try our wall thickness analysis and STL analysis tools.