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Re: idea for chamfer/round corners (Zach Smith)

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Re: idea for chamfer/round corners (Zach Smith)

Jerry Isdale
> first off, i have no idea what sort of math this would entail, so if its
> crazy, then lemme know.  :)
>
> i'd love to get some sort of corner rounding/chamfer tool.  it would really
> step up the capabilities.  but how do you apply a chamfer to 3D objects
> created with booleans?
>
> the idea is to use a primitive to define a volume to apply a curving
> function to.  i could get by with cubes, but it would be REALLY rad if you
> could use any old 3d object.
>
> Zach


I dont know internals of OpenSCAD and I'm much more familiar with Boundary Rep CAD/modeling systems than CSG (constructive solid geometry), but I did a bit of googling and found *some* references to CSG and chamfers (sp).  Most (like wikipedia) reference them as a contrast between BR & CSG techniques.  That doesnt help. There were several leads behind closed source PDFs (eg IEEE archives, Elsevier).   There was this patent that appears to have some relevance...
   http://www.freepatentsonline.com/6133922.html


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Re: idea for chamfer/round corners (Zach Smith)

Bryan Bishop
On Fri, Feb 19, 2010 at 1:51 PM, Jerry Isdale wrote:
> I dont know internals of OpenSCAD and I'm much more familiar with Boundary Rep CAD/modeling systems than CSG (constructive solid geometry), but I did a bit of googling and found *some* references to CSG and chamfers (sp).  Most (like wikipedia) reference them as a contrast between BR & CSG techniques.  That doesnt help. There were several leads behind closed source PDFs (eg IEEE archives, Elsevier).   There was this patent that appears to have some relevance...

Hey Jerry. In the future, if you need papers from IEEE or Elsevier, hit me up.

- Bryan
http://heybryan.org/
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