Filleting Tips for SolidWorks


Developed by Dassault Systemes SolidWorks Corp., SolidWorks is a 3D computer-aided design, or CAD, software program that runs on Microsoft Windows. SolidWorks allows you to fillet your designs, rounding sharp edges to create a more finished appearance. Knowing a few tips can help improve your filleting skills and produce professional-looking work.

Multiple Fillets

  • If you want to apply multiple fillets with different radii in SimpleWorks, you don't need to create multiple fillet features in the FeatureManager. Instead, you can use just one feature. Access the fillet command, and select "Multiple Radius Fillet" from the "Items to Fillet" menu. Now select all the individual edges you'd like to fillet, assigning each one its own respective radius value. By doing it this way, through a single feature instead of multiple features, you save time.

Rounded Corners

  • When two fillet edges meet, they create a sharp corner, since that's the easiest way for machinists to produce the created part. However, sometimes two fillet edges would look better with a rounded corner. To create this rounded effect, go to the Fillet PropertyManager, and select "Round Corners" in the "Fillet Options" section. This is the only way to achieve the rounded corner where the fillets join yet still maintain the sharp edge on the created part.


  • A setback fillet occurs when three fillet edges meet at the same point, located a set distance away from the normal corner vortex. Setting the point back like this creates a far more pleasing appearance. On the "Items to Fillet" menu, expand the "Setback Parameters" panel. Now select the "Setback Verticies" box to pinpoint exactly where the three fillet edges meet. Next, input the "Setback Distance" for each selected edge. You can then preview the resulting corner before making any other changes.

Constant Width

  • Aside from an edge fillet, you can also use SolidWorks to apply a surface fillet to smooth the joining of two adjacent faces in a surface body. Sometimes a surface fillet can produce an uneven width along the length of the fillet, which can lead to improper light reflections. To correct the problem, check the "Curvature Continuous" and the "Constant Width" boxes on the "Fillet Options" panel located on the "Items to Fillet" menu. These selections draw out the fillet and keep a constant width, creating smoother reflections and an improved appearance.

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