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Advanced Filleting

Summary: There are situations where the automatic filleting tools in Rhino may fail. This page contains tutorials that show how to manually get the desired results.

Contact: John Brock or Pascal Golay

The two primary commands for filleting surfaces in Rhino are:

FilletEdge

  • Creates a tangent surface between multiple polysurface edges (joined) with optional varying radius. values, trims the original faces, and joins the resulting surfaces together.
  • Is not limited to just two surfaces.
  • Can fill in corners between adjacent fillets.
  • Is limited to exactly three surfaces meeting at a point. (V4 only. V5 handles multiple surfaces at a single point.)
  • The radiuses used can not be so large that they overlap each other and completely consume any surface they are following.

FilletSrf

  • Creates a tangent surface between two surface edges (joined or not) with a constant radius, and optionally trims and extends the original surfaces.
  • Works on exactly two surfaces at a time
  • Does not fill in corners between adjacent fillets


What if they don’t work?

Four surfaces (V4)
step_8.jpg This example will show you how to manually fillet a corner where four planar surfaces meet at a single point.
Last update: January 19, 2007


Five surfaces (V4)
This example will show you how to manually fillet a corner where five planar surfaces meet at a single point.
Last update: January 22, 2007


Overlapping surfaces
This example will show you how to manually fix two overlapping fillet surfaces.
Last update: January 19, 2007


Short walled pocket
This example will show you how to manually fillet a pocket with the walls are too short for the desired radius.
Last update: January 22, 2007


Existing small radius
This example will show you how to use a large radius fillet when a small radius fillet already exists.
Last update: January 22, 2007


Tangent cylinders
This example will show you how to fillet two stacked cylinders that share a tangent side.
Last update: January 22, 2007


Overlapping boxes
This example will show you how to fillet the shared edges of two overlapping boxes.
Last update: January 22, 2007


Mitch's first challenge
mitch1done.jpg Here's an example sent in by Mitch Heynick. Mitch writes: Fillet all vertical edges plus the base with a radius of 10. Fillet the horizontal inside edges near the top at 5. –Mitch
Last update: January 25, 2007


Mitch's second challenge
mitch2_07b.jpg Here's another example sent in by Mitch Heynick. I'll admit, this one stumped me but Pascal figured it out. Mitch writes: Fillet all the surfaces except bottom with a constant radius of 5. –Mitch
Last update: January 30, 2007



rhino/advancedfilleting.txt · Last modified: 2016/03/03 by sandy