Fusion 360

How to Fill a Shell in Fusion 360?

Understanding Shell Filling in Fusion 360

Fusion 360 provides powerful tools for designing and modeling, which includes the ability to fill hollow bodies or shells. This feature is particularly useful when creating solid models from geometric shapes that have thickness but are empty inside.

Steps to Fill a Shell in Fusion 360

Step 1: Open Your Design Environment

Launch Fusion 360 and open the design file that contains the hollow body or shell you wish to fill. Ensure you are in the Model workspace to access relevant tools.

Step 2: Select the Hollow Body

Identify and select the hollow body you want to fill. You can do this by clicking on the specific part in the canvas or selecting it from the browser.

Step 3: Access the Boundary Fill Tool

Navigate to the solid tab. In the toolbar, locate the "Create" dropdown menu. From this menu, find and select the “Boundary Fill” tool. This tool allows you to fill the selected hollow body efficiently.

Step 4: Define the Interior Regions

Once the Boundary Fill tool is activated, you’ll be prompted to select the faces or edges of the hollow area. Carefully pick the inner faces of the hollow body that constitute the area you want filled. This defines the space that will convert into a solid.

Step 5: Specify Fill Options

Fusion 360 will present options regarding how to fill the selected area. You may choose between various fill types such as solids or surfaces depending on the requirement of your design.

Step 6: Confirm the Filling Operation

After selecting the fill options, proceed by confirming your selection. Click “OK” to execute the fill. The software will process your input and fill the designated area, resulting in a solid object.

Working with Shells in Fusion 360

Converting Models to Solid

If you’re working with a model that doesn’t easily transition to a solid, ensure that it meets the requirements for solid conversion. Models should be contained and indicate a clear boundary to avoid issues during the filling process.

Modifying Filled Bodies

Once you’ve created a filled body, you can further modify it using various tools. Utilize features like fillet, chamfer, or pattern to achieve the desired details or design enhancements.

Frequently Asked Questions

How can I check if my shell is hollow before filling?
To check if your shell is hollow, use the “Section Analysis” feature. This allows you to slice through the model to visually verify the hollow section.

What should I do if the Boundary Fill tool is grayed out?
If the Boundary Fill tool is not available, ensure that you have correctly selected a hollow body with enclosed surfaces. Additionally, check for any overlapping geometry that may prevent the tool from activating.

Can I revert back to a hollow body after filling it?
Once a shell is filled and converted into a solid body, you cannot revert it back to a hollow state. It is advisable to keep a backup of the original hollow model before executing the fill operation.

About the author

Wei Zhang

Wei Zhang

Wei Zhang is a renowned figure in the CAD (Computer-Aided Design) industry in Canada, with over 30 years of experience spanning his native China and Canada. As the founder of a CAD training center, Wei has been instrumental in shaping the skills of hundreds of technicians and engineers in technical drawing and CAD software applications. He is a certified developer with Autodesk, demonstrating his deep expertise and commitment to staying at the forefront of CAD technology. Wei’s passion for education and technology has not only made him a respected educator but also a key player in advancing CAD methodologies in various engineering sectors. His contributions have significantly impacted the way CAD is taught and applied in the professional world, bridging the gap between traditional drafting techniques and modern digital solutions.