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Tag Archives: medial axis

Medial-Axis pocketing

Sunday, February 12, 2012

Update: In the US, where they are silly enough to have software-patents, there's US Patent number: 7831332, "Engagement Milling", Filing date: 29 May 2008, Issue date: 9 Nov 2010. By Inventors: Alan Diehl, Robert B. Patterson of SURFWARE, INC. Any pocket milling strategy will have as input a step-over distance set at maybe 10 to [...]

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Towards medial-axis pocketing

Thursday, February 9, 2012

Update: some work on connecting MICs together with bi-tangent line-segments, as well as a sequence of lead-out, rapid, lead-in, between successive MIC-slices: It gets quite confusing with all cutting and non-cutting moves drawn in one image. The path starts with an Archimedean spiral (pink) that clears the initial largest MIC. We then proceed to "scoop" [...]

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V-carving test

Saturday, January 21, 2012

A first try at v-carving, with toolpaths produced by the ttt2medial python script.

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Graph filters

Monday, January 16, 2012

I've put together two graph filters that can be applied to the VD. The first one detects the interior or exterior of a polygon. When the VD is constructed the polygon boundary must be input in CW order, and any islands inside the polygon in CCW order (or vice versa). This allows running other downstream [...]

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