Parabolizing a 20" Mirror, Part 2: Deepening the Curve

Описание к видео Parabolizing a 20" Mirror, Part 2: Deepening the Curve

The curve on the 20" quartz telescope mirror needs to be deepened from a roughly spherical surface toward parabolic. Gordon Waite shows how to use 7", 8" and 12.5" pitch laps to rough in the paraboloid. Gordon performs pitch lap polishing by hand on a powered turntable.

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