Parabolizing a 20" Mirror, Part 1: Preparations

Описание к видео Parabolizing a 20" Mirror, Part 1: Preparations

The 20" quartz telescope mirror is polished out, and Gordon is ready to begin deepening the curve toward a paraboloid. In this video, he shows how to press and prep the laps. Then he uses a pitch lap to reduce a central hill left over after rough polishing. This starts the deepening process to move the curve from mostly spherical toward parabolic.

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