How to see inside hollow solid In Fusion 360

Introduction

Seeing inside a hollow solid in Fusion 360 can be crucial for many design tasks, such as inspecting internal features, verifying thicknesses, or preparing for manufacturing processes like casting or welding. Fusion 360 offers several ways to visualize and analyze the interior of your models, enabling you to make informed design decisions and ensure your parts work as intended. Whether you’re a beginner or honing your CAD skills, learning how to efficiently see inside hollow solids is a fundamental skill that can streamline your workflow and improve the quality of your designs.

In this comprehensive guide, you’ll learn step-by-step methods to view, section, and analyze hollow solids in Fusion 360. We’ll cover practical techniques, common mistakes to avoid, tips for best results, and even compare different approaches to choose the right method for your project.

How to See Inside a Hollow Solid in Fusion 360

Many users want quick ways to view the interior of a hollow solid without permanently modifying their model. Fusion 360 offers several techniques—such as section analysis, transparent view modes, and slicing—that can make internal features visible for inspection or presentation purposes. Here’s a structured approach to seeing inside hollow solids.

1. Using the Section Analysis Tool

The section analysis tool is one of the most effective ways to view inside a hollow solid temporarily or for detailed inspection.

Step 1: Open your Fusion 360 design and select the workspace where your model resides.
Step 2: In the toolbar, click on the “Inspect” dropdown menu.
Step 3: Choose “Section Analysis” from the list.
Step 4: Select the plane, face, or edge where you’d like to create the section. Fusion 360 will generate a sectional view that slices through your model.
Step 5: Adjust the position and angle of the section plane to explore different internal regions.
Step 6: To hide the section, click the “Finish Section” button or deselect the analysis.

Pro tip: For precise internal inspection, create custom construction planes aligned with specific features or areas of interest before initiating section analysis.

2. Making the Model Transparent or Using Appearance Settings

Transparency allows you to see internal features without cutting through the model physically.

Step 1: Right-click on your model in the browser tree.
Step 2: Select “Appearance” from the context menu.
Step 3: Choose a transparent material—such as glass or plastic—from the appearance library.
Step 4: Drag the selected appearance onto your entire model, or specific components.
Step 5: Fine-tune transparency levels in the appearance settings for clearer inner view.

Note: Using transparency is ideal for quick visual checks but does not give sectional cross-sections.

3. Creating a Split or Drill Hole for Internal Visibility

Another practical method involves physically modifying the model to reveal internal features.

Step 1: Use the “Split Body” or “Cut” tools to create a section or hole through the hollow part.
Step 2: For a drill hole:
Sketch a circle at the location where you want an opening.
Use the “Extrude” command to cut through the wall.
Step 3: Remove or hide the outer shell where necessary to expose the interior.

Tip: Save a copy of your model before making destructive edits if you want to preserve the original.

4. Using Slicing Techniques with the Section Plane

This method involves creating a slicing plane to cut through the model manually.

Step 1: Draw a sketch plane parallel or at an angle to your model.
Step 2: Use the “Splines” or “Line” tool to draw the shape of the slice.
Step 3: Extrude, or use “Split Body” with the sketch to make a cut.
Step 4: Hide the outer parts to reveal the internal structure.

This strategy offers precise control over which internal sections are visible.

Practical Examples and Applications

Example 1: Inspecting Wall Thickness of a Hollow Cylinder

Use section analysis to slice through the cylinder lengthwise.
Measure the remaining wall thickness to ensure it meets specifications.
Adjust your design accordingly if the thickness is insufficient.

Example 2: Validating Internal Passages in a Hollow Sphere

Apply transparency to visualize the hollow interior.
Create a sectional view at different angles to examine internal features like channels or air gaps.

Example 3: Preparing for Manufacturing with Internal Features

Use a combination of slicing and section analysis to verify internal cavities before 3D printing or casting.
Make sure internal clearances are adequate to avoid manufacturing issues.

Common Mistakes and How to Avoid Them

Mistake: Relying solely on transparency without sectional analysis for detailed inspection.

Solution: Combine transparency with section analysis for comprehensive internal views.

Mistake: Making destructive edits (like cutting or deleting) without saving a backup.

Solution: Save versions or copies before creating physically modified internals.

Mistake: Forgetting to hide or hide/show components to improve internal visibility.

Solution: Use the “Visibility” toggles in the browser to hide outer shells or unrelated parts.

Pro Tips and Best Practices

Use construction planes to define precise section locations.
Combine section analysis with measurements for internal dimension verification.
For repetitive slicing, save section plane positions as components or components groups.
Maximize internal visibility by adjusting transparency levels dynamically during presentations.
Leverage shortcuts like “N” for creating new sketch planes quickly.

Comparing Techniques: Section Analysis vs. Transparency vs. Physical Cuts

Technique	Pros	Cons	Best Use Case
Section Analysis	Non-destructive, adjustable, precise	Temporary, not visible in final render	Internal inspection, measurements
Transparency	Quick, easy, good for visualization	Less precise, can be visually cluttered	Quick internal view, presentations
Physical Cuts / Drilling	Permanent internal access	Destructive, requires planning	Preparing models for assembly or manufacturing

Choosing the right method depends on your project needs. For detailed analysis, section analysis combined with measurements is ideal. For quick visualization, transparency is effective. For creating access points, physical cuts are necessary.

Conclusion

Seeing inside a hollow solid in Fusion 360 is an essential skill for designing, inspecting, and preparing parts for manufacturing. Whether through temporary section analysis, adjusting appearance transparency, or physically modifying your model, each method serves different purposes and offers unique benefits. By mastering these techniques, you’ll enhance your ability to visualize complex internal features, verify internal dimensions, and ultimately improve your design process.

Remember to combine methods, leverage construction tools, and always save backups before making significant modifications. With practice, viewing the interior of hollow solids in Fusion 360 will become a seamless part of your workflow.

FAQ

1. How do I create a section view in Fusion 360?

Ans: Use the “Section Analysis” tool under the “Inspect” menu to create a temporary cross-section through your model.

2. Can I make a hollow solid transparent in Fusion 360?

Ans: Yes, right-click the model, select “Appearance,” and apply a transparent material like glass or plastic.

3. How do I cut into a hollow solid to see the inside?

Ans: Use sketching and extrude cut or split bodies with a sketch to make openings or internal cuts.

4. Is there a way to animate or dynamically reveal internal features?

Ans: Fusion 360’s section analysis can be animated or adjusted dynamically to reveal internal features in presentations.

5. How do I measure the thickness of a hollow section?

Ans: Use the “Inspect” > “Measure” tool along the internal and external surfaces of the hollow feature.

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This all-in-one workbook is your ultimate resource to develop hands-on CAD skills with Autodesk Fusion 360. Whether you’re a student, engineer, hobbyist, or professional, this guide is built to help you gain real design confidence through structured practice.

What’s Inside this Book:

200 2D Sketching Exercises – Build a strong foundation in dimension-driven 2D geometry and technical drawings
200 3D Modeling Exercises – Practice modeling real-world parts, from simple shapes to complex components.
Multi-Part Assembly Projects – Understand how parts fit together and create full assemblies with detailed drawings

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May 9, 2026

How to use section analysis In Fusion 360

Introduction

Section analysis in Fusion 360 is a powerful feature that allows engineers, designers, and hobbyists to examine the internal structure of complex parts and assemblies. It provides insight into the internal geometry, helps identify potential issues, and makes optimizing designs easier. Whether you’re performing stress analysis, inspecting internal features, or preparing for manufacturing, mastering section analysis is essential for efficient CAD workflows.

In this guide, we will explore how to use section analysis in Fusion 360 step-by-step. You will learn practical techniques, common pitfalls, and best practices—bringing clarity to your design process. By understanding this feature thoroughly, you can enhance your design accuracy, streamline simulations, and improve overall project outcomes.

What Is Section Analysis in Fusion 360?

Section analysis is a visualization tool within Fusion 360 that enables you to cut through a model and view its internal features without modifying the actual geometry. This dynamic feature provides a “slice” view at any specified plane, making it easier to inspect internal details, verify complex assemblies, or prepare models for manufacturing.

Its primary purpose is to give users a detailed look inside parts, identify interference issues, or verify internal channels. Understanding how to effectively use section analysis can significantly improve your design verification process.

How to Use Section Analysis in Fusion 360: Step-by-Step Guide

1. Opening Your Model

Start by opening the Fusion 360 project containing the part or assembly you want to analyze.

Ensure your model is saved and that all features are properly imported or designed.
Navigate to the “Design” workspace, where most modeling and analysis tools are available.

2. Accessing the Section Analysis Tool

To initiate section analysis:

Click on the “Inspect” dropdown menu in the toolbar.
Select “Section Analysis” from the list.

Alternatively, you can access it directly via the right-click context menu:

Right-click on the component or body.
Choose “Section Analysis” from the context menu.

3. Creating and Positioning the Section Plane

Once activated, Fusion 360 automatically creates a section plane:

The default plane is typically aligned with the XY, YZ, or ZX planes.
To move the section plane:

Drag the arrow or handle to the desired location.
Use the “Direction” dialog box to specify an exact coordinate or plane.

To rotate the section plane:

Rotate the arrow using the handles that appear, aligning the plane perpendicular to the desired cutting face.

4. Adjusting Section Parameters

Refinement improves the clarity of your section:

Use the “Offset” option to move the section plane closer or farther from the model.
Select the “Flip” option to change the viewing direction.
Enable or disable the “Slice” option to show only the portion of the model in front of or behind the plane.

5. Visualizing the Internal Features

After positioning:

Observe the sectioned view in real-time.
Use the “Hide/Show” options in the browser to hide parts or other features for better visibility.
Adjust transparency of surfaces, if necessary, for in-depth inspection.

6. Annotating and Exporting the Section View

For documentation and communication:

Add annotations or notes directly on the section view.
Capture screenshots for reports.
Export the view as an image or render for presentations.

Practical Examples of Using Section Analysis

Example 1: Inspecting Internal Channels in a Pump Housing

Use section analysis to verify that internal coolant channels are correctly aligned.
Check for any interference or misalignment prior to manufacturing.

Example 2: Verifying Complex Assemblies

Slice through assemblies to check for interference between components.
Ensure that internal features like fastener holes align correctly within the assembled parts.

Example 3: Stress Analysis Preparation

Use section analysis to identify critical regions for detailed stress simulations.
Isolate internal features to understand load distribution better.

Common Mistakes When Using Section Analysis in Fusion 360

Not updating the section plane after moving it: Remember to refresh or reposition the plane as needed during iterative inspections.
Overlooking transparency settings: Failing to adjust surface transparency can obscure internal features.
Ignoring the direction of the slice: Flipping the section view without consideration can give misleading perspectives.
Forgetting to save or capture views: Always save important views for future reference or documentation.
Using overly complex models: Large or highly detailed models may slow down Fusion 360; simplify or sectionalize the model if needed.

Tips and Best Practices for Effective Section Analysis

Use named views: Save orientations for quick access during multiple analyses.
Combine with section boxes: Use the section box feature for more controlled and uniform cuts.
Leverage section analysis with motion studies: See internal features dynamically during an assembly animation.
Maintain model clarity: Simplify your models where possible to keep the section analysis responsive.
Document regularly: Capture images and annotations at each step for comprehensive reporting.

Comparing Section Analysis with Other View Techniques

Technique	Purpose	Pros	Cons
Section Analysis	Inspect internal features dynamically	Non-destructive, flexible	May require adjustment for clarity
Exploded View	Show component relationships	Clear assembly breakdown	Not for internal inspection
Cross-Section View in Drawings	View slices in 2D documentation	Precise for documentation	Static, less interactive
Transparent Mode	Make entire model transparent	General internal visibility	Can obscure details if overused

Section analysis is unique in its ability to provide interactive, dynamic internal views, making it highly suitable for detailed inspections.

Conclusion

Mastering section analysis in Fusion 360 empowers you to thoroughly inspect your designs, identify potential issues, and prepare your models for manufacturing with confidence. By following the step-by-step instructions, practicing with real-world examples, and avoiding common pitfalls, you can leverage this powerful tool to enhance your CAD workflow.

Whether you’re verifying internal features, preparing for stress analysis, or documenting your design process, section analysis is an indispensable feature that unlocks deeper insights into your models. Incorporate it into your regular design practices and experience improved accuracy and efficiency.

FAQ

1. How do I move the section plane to a specific location in Fusion 360?

Ans: Use the “Section Analysis” tool, then drag or input precise coordinate values to position the section plane exactly where needed.

2. Can I animate or animate the section plane in Fusion 360?

Ans: Not directly; however, you can manually adjust the section plane for different positions or use parameters and CAM features for simulation purposes.

3. How do I create multiple section planes in one model?

Ans: You can create multiple instances of the section analysis or utilize section boxes to slice your model at different locations sequentially.

4. What is the best way to export a section view for presentation?

Ans: Capture a screenshot of the section view or use the “Render” workspace to create high-quality images suitable for presentations.

5. Can section analysis be used in assemblies?

Ans: Yes, section analysis can be applied to assemblies to inspect internal parts and verify clearances without disassembling components.

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200 2D Sketching Exercises – Build a strong foundation in dimension-driven 2D geometry and technical drawings
200 3D Modeling Exercises – Practice modeling real-world parts, from simple shapes to complex components.
Multi-Part Assembly Projects – Understand how parts fit together and create full assemblies with detailed drawings

🎯 Why This Book?

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Trusted by 15,000+ CAD learners worldwide

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May 9, 2026

How to check wall thickness In Fusion 360

Introduction

Checking wall thickness in Fusion 360 is a critical step in designing parts with specific strength, material efficiency, and functional requirements. Whether you’re creating a custom enclosure, a mechanical component, or a prototype, understanding how to accurately measure wall thickness ensures your design is both viable and optimized. Fusion 360 offers several tools and techniques to easily assess internal and external wall thickness, helping you catch potential issues before manufacturing. In this guide, we’ll walk you through precise methods, common pitfalls, and practical tips for checking wall thickness effectively within Fusion 360.

Understanding Wall Thickness in Fusion 360

Before diving into tools and steps, it’s essential to understand what constitutes wall thickness and its importance. Wall thickness refers to the measure of the material’s thickness between the inside and outside surfaces of a part. Properly measured wall thickness impacts strength, material cost, weight, and manufacturability.

Fusion 360 provides multiple approaches to evaluate wall thickness, from built-in analysis tools to creating custom measurement strategies. These techniques empower designers to verify if their design adheres to specifications, especially for 3D printing, injection molding, or machining.

How to Check Wall Thickness in Fusion 360: Step-by-Step Guide

Here, we’ll explore the most effective methods for measuring wall thickness in Fusion 360, organized in a clear, sequential manner.

1. Using the Section Analysis Tool

This is the most straightforward method for visualizing and measuring wall thickness.

Open your Fusion 360 model.
Navigate to the “Inspect” dropdown menu in the toolbar.
Select “Section Analysis”.
Click on the face or plane where you want to examine the wall thickness.
Adjust the plane or section position to cut through your part at the desired location.
Fusion 360 will generate a visual cross-section showing the internal structure.
Use the “Estimate” tool or measure distances directly to determine wall thickness along the cross-section.

Practical Example:

Suppose you’re designing a container; use section analysis to confirm the wall is uniformly thick around the entire perimeter.

2. Measuring Wall Thickness with the Measure Tool

While the section analysis visualizes internal features, the Measure Tool provides precise numerical data.

With your part open, go to “Inspect” and select “Measure”.
Click on two points: one on the outer surface and one on the inner surface at the same location.
To do this accurately, hover over the faces, and Fusion 360 will highlight surfaces.
Read the distance; this reflects the wall thickness at that point.

Repeat measurements along different points or sections to ensure consistency.

3. Utilizing the “Thickness Analysis” Command

Fusion 360 introduced the “Thickness Analysis” feature for comprehensive evaluation.

Ensure your model is a solid body.
Go to the “Inspect” menu.
Choose “Thickness”.
Select the body or face you want to analyze.
Fusion 360 will display color-coded results indicating regions with different wall thicknesses.
Use the snapshot or data table to review specific measurements.

This provides a quick, at-a-glance assessment of uniformity or areas that may need adjustment.

4. Creating a Thickness Report

For detailed documentation, generating a report can be invaluable.

Use the “Selection” tool to isolate regions of interest.
With the measure tool, record multiple measurements.
Export these measurements into a spreadsheet for comprehensive review.
Some third-party add-ons or scripts can automate this process, exporting thickness data directly.

5. Using the Internal Geometry or Skeleton Analysis

For complex geometries, you can:

Create a “Shell” feature to hollow out your part.
Use the “Offset Face” command to create an internal shell at desired thickness.
Measure the offset distance to confirm wall thickness.

Alternatively, in scenarios involving intricate internal cavities, use “Ray Tracing” or “Path Analysis” to examine the internal structure systematically.

Practical Tips for Accurate Wall Thickness Checks

Always measure at multiple points: uniformity is key.
Use the zoom and snap tools for precision when selecting points.
Create cross-section sketches for repeatable measurements.
For 3D-printed parts, consider tolerances and shrinkage.
Avoid measuring areas with complex geometry where surfaces are difficult to identify.

Common Mistakes to Avoid

Relying solely on visual inspection: always verify with measurement tools.
Failing to account for manufacturing tolerances or material behavior.
Overlooking internal features that might create uneven wall thickness.
Using uniform measurements without checking multiple sections.

Best Practices and Pro Tips

Use the “Section Analysis” early in the design to prevent costly revisions later.
Combine measurement methods for internal and external verification.
Save measurement data regularly to compare across design iterations.
Consider automating measurements with scripts or add-ins for large models.
Always double-check measurements after modifications.

Comparing Fusion 360 Wall Thickness Measurement Methods

Method	Best For	Pros	Cons
Section Analysis	Visual inspection of internal features	Intuitive, easy to see cross-section	Less precise for detailed data
Measure Tool	Precise distance measurements	Accurate, flexible with points	Time-consuming for complex shapes
Thickness Analysis	Quick assessment of uniformity	Color-coded visualization	May require interpretation
Internal Geometry Approach	Internal cavity validation	Good for complex internal features	More setup work

Conclusion

Accurately checking wall thickness in Fusion 360 is an essential skill for any designer or engineer. By mastering methods like section analysis, measurement tools, and thickness analysis, you ensure your parts meet functional requirements and manufacturing standards. Properly evaluating wall thickness not only enhances design quality but also reduces material waste and production issues. Incorporate these practices into your workflow to produce reliable, high-quality designs every time.

FAQ

1. How do I measure wall thickness inside a complex 3D model in Fusion 360?

Ans: Use the Section Analysis tool to create a cross-section, then employ the Measure tool to get precise internal measurements.

2. Can Fusion 360 automatically detect areas with insufficient wall thickness?

Ans: Yes, using the Thickness Analysis feature, which color-codes regions based on their wall thickness.

3. What’s the best way to verify uniform wall thickness throughout my part?

Ans: Combine the Thickness Analysis tool with multiple manual measurements at various points for comprehensive verification.

4. How accurate are the wall thickness measurements in Fusion 360?

Ans: They are highly accurate for model evaluation but consider manufacturing tolerances for real-world applications.

5. How can I ensure my wall thickness is suitable for 3D printing?

Ans: Check your printer’s minimum wall thickness specifications and measure critical regions using the Measure Tool for confirmation.

6. Is there a way to automate wall thickness verification in Fusion 360?

Ans: Yes, you can use scripts, add-ins, or custom extensions to automate repetitive measurements and reports.

7. What common mistakes should I avoid when checking wall thickness?

Ans: Avoid relying solely on visual inspection, neglecting internal features, or measuring only at a few points—always verify comprehensively.

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Autodesk Fusion 360 All-in-One Workbook

500+ Practice Exercises to Master Autodesk Fusion 360 through real-world practice!

What’s Inside this Book:

200 2D Sketching Exercises – Build a strong foundation in dimension-driven 2D geometry and technical drawings
200 3D Modeling Exercises – Practice modeling real-world parts, from simple shapes to complex components.
Multi-Part Assembly Projects – Understand how parts fit together and create full assemblies with detailed drawings

🎯 Why This Book?

500+ practice exercises following real design standards
Designed for self-paced learning & independent practice
Perfect for classrooms, technical interview preparation, and personal projects
Covers 2D Sketching, 3D Modeling & Assembly Design in one workbook
Trusted by 15,000+ CAD learners worldwide

After purchasing, a download link will be sent instantly to your email.

Buy Now For $27.99

Are you a student or Unemployed? Get this bundle for $19.99

Offer for Students Buy Now For $19.99

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