Polygonal Bus

PolygonalBus


`number`	`[3]`	-- number of sides around the bus
`diam1`	`[1]`	-- outer diameter (twice distance from center axis to vertex)
`diam2`	`[.3]`	-- inner diameter (twice distance from center axis to vertex)
`depth`	`[1]`	-- depth of polygonal bus in Z direction

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