Do you need to soften the edges of object? Rhino can provide a fantastic array of tools to soften sharp edges.
Fillet on Surfaces -- create two surfaces at 90deg angels with adjoining edges.
- Open the surface tools and select "Fillet Surface"
- Select and use the "Chamfer Surface" tool
- Select the "Variable Radius Fillet Surface" -- use the trim tool to complete the operation.
Create an object with a notch, curve, and nob.
- Use the Fillet Surface tool to join the nob to the top of the shape. (Type fillet in the command line and you will see all of the fillet commands.)
- Use the Fillet Edge too to round inside and outside edges.
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