Fusion 360

How to Reverse Fillet in Fusion 360?

Understanding Fillets in Fusion 360

Filleting is a key technique used in 3D modeling to create smooth, rounded corners on a geometry. While Fusion 360 doesn’t offer a direct option for reversing fillets, there are alternative methods to achieve desired outcomes. This guide outlines how to manipulate fillet features effectively within Fusion 360, focusing on reversing the impact of a fillet.

Step-by-Step Guide to Modifying Fillets

1. Accessing the Fillet Tool

To begin, ensure that you have your design open in Fusion 360. Navigate to the Solid tab, then go to the Modify dropdown menu. From there, select Fillet. This will allow you to either create new fillets or modify existing ones.

2. Selecting the Edges

Identify the edges that have fillets applied to them. Click on the edge(s) you would like to change. The selection highlights the specific area where the fillet is applied.

3. Adjusting the Fillet Size

Using the Fillet dialog or menu, you can adjust the radius of the fillet. If you wish to mimic a "reversed" effect, consider replacing the existing fillet with a smaller radius that may appear less pronounced.

4. Deleting and Reapplying

If adjusting the fillet size does not give the desired effect, deleting the existing fillet may be necessary. To do this:

  • Select the fillet feature in the Browser panel.
  • Right-click and choose Delete.
    This action removes the fillet completely from the selected edges.

5. Creating a New Fillet

After deleting the original fillet, you can create a new one by returning to the Fillet tool. Select the same edges once again and specify the radius to achieve the desired roundness. This method, while not reversing a fillet, gives you control over the appearance of the edges.

Exploring Alternative Methods to Influence Fillets

  • Using Construction Geometry: Sometimes, creating construction lines or profiles can help in visualizing how the fillets should appear. Designing with these references may provide a clearer path to achieving the correct outcome.

  • Utilizing Sketch Fillets: If you are manipulating fillets in a sketch context as opposed to a solid model, you can access the sketch fillet tool directly from the sketch dropdown menu. This allows for easier adjustments before the final model is constructed.

Frequently Asked Questions

Q1: Can I use the fillet tool on 3D geometries in Fusion 360?
Yes, the fillet tool is designed for both 2D sketches and 3D solid models. Ensure you are in the appropriate workspace and access the tool from the Solid tab.

Q2: Is it possible to restore a deleted fillet?
When a fillet is deleted, it cannot be directly restored. However, you can recreate it using the same parameters or adjust the geometry as needed.

Q3: What is the difference between a fillet and a chamfer?
A fillet produces a rounded edge, whereas a chamfer creates a flat, angled transition between two intersecting surfaces. Understanding these differences is crucial when deciding how to style your design edges.

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.