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Grinding Metre-Scale Mirror Segments for the E , 145 metre scale Zerodur® mirror segment for the European Extremely Large Telescope (E-ELT) is introduced , stiff and well damped grinding machines such as the Tetraform , Building on research previously carried out on 350 mm and.
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Grinding and Testing a Telescope Mirror - RASC St John's Centre You need special machinery to grind a mirror Indeed you do, if you are going to use machinery at all The machinery must be made to mimic the human action Humans make the best mirrors precisely because their movements are imprecise.
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Grinding own mirror gives you a spherical or a
Aug 27, The natural mirror grinding process will create a sphere The first part of making a mirror is to grind and polish to a sphere of the required focal length Then the mirror is parabolised, by using special polishing strokes, that changes the figure from sphere to parabolo.