Learn how to use the Sketch Fillet tool to round sketch corners, create multiple fillets, and adjust their radius together.
What is the Fillet tool?
You can use the Fillet tool to create rounded transitions at sketch corners. Select a single corner or multiple corners to create fillets, then adjust the radius of one fillet to update all selected corners.
How to use the Fillet tool
To create one or more sketch fillets:
- Define your sketch plane and create the sketch corners you want to round.
- Go to Sketch > Fillet.
For other ways to access tools, visit Accessing tools. - Select one or more sketch corners to create rounded transitions.
- Adjust the radius of one fillet to update all selected corners.
- To finish and exit the tool, click anywhere in an empty area of the modeling space.
Tip
To give several corners the same fillet radius, select them in one operation and adjust the radius of one fillet.
History settings
Shapr3D records sketch items created on the same plane in a shared Sketch step in History. Find the Sketch step to review or modify these settings:
- Plane – Select Edit… or Select… to change the plane or face containing the sketch, then select Done.
- Projection – If applicable, select Edit… to modify existing projections in the sketch.
When to use the Fillet tool
The Fillet tool is useful for creating:
- Rounded profiles – Soften sharp corners in sketches used to create plates, panels, or enclosures.
- Rounded openings – Create profiles for cutouts and pockets with curved corners.
- Consistent corner transitions – Apply the same fillet radius to multiple corners in a sketch.
- Smooth profile transitions – Connect straight sketch segments with rounded corners before using the profile for 3D modeling.
Best practices and troubleshooting
- Select all corners that should share a radius before adjusting a fillet.
- Check the resulting sketch profile before using it to create a 3D feature.
| Issue | What to check |
|---|---|
| The rounded corners have the wrong radius. | Adjust the fillet radius to the intended value. |
| Not all intended corners were rounded. | Check that all intended sketch corners were selected before adjusting the radius. |
| The fillets do not match in size. | Select the corners together and adjust the radius of one fillet to update all selected corners. |
Read more
- Accessing tools – Understand how tools appear based on what you select in the modeling space.
- Selecting geometry – Master selection techniques for edges, faces, sketches, and bodies.
- Defining and calculating numerical values – Learn how to apply dimensions, enter precise values, and use formulas.
- Keyboard shortcuts, gestures, and hotkeys – View keyboard shortcuts you can use to access tools and speed up actions.
- Variables and expressions – Set up reusable values and expressions to control your design parametrically.