Right Conoid

right conoid rotating 001
right conoid

Right Conoid is a ruled surface. It is generated by moving a line segment S perpendicular to a fixed line L, in the direction of the L, while S rotates around L. When S has rotated 180 degrees, the direction of travel is reversed.

The construction of Right Conoid is similar to a Helicoid

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The conoid has the same pinch-point singularity as the Whitney Umbrella. Here it is deformed into a helicoid
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wireframe of a rotating right conoid. The profile can become a circle or 2 triangles.
right conoid st
right conoid st
right conoid sw
right conoid sw