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2015 8 14My Mirror Grinding Machine For a long time Ive wanted to build a machine for grinding telescope mirrors Dennis Rechs M o M designs finally inspired me to just get up and do it Over the years Id been collecting motors gear boxes pulleys etc.
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2013 2 2Later on in the 1930s in the United States Albert Ingalls mentions different types of machines in his fundational book Amateur Telescope Making In France one can read descriptions of such machines in an issue of the Astronomie magazine of the SAF Socit Franaise dAstronomie dealing with the 108 th session of the commission.
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2020 8 17The I A U named asteroid 17823 Bartels discovered 1998 by J M Roe in recognition for my contributions to amateur astronomy Making is the Key to Knowing A telescope mirror is arguably the most accurate surface made by human or machine Amazingly you can grind a mirror by hand and make a telescope with simple hand tools.
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Sketch of grinding machine Newest Crusher Grinding Our Reconstruction Worlds of Leonardo da Vinci Stage by Stage photographs of our reconstruction of Leonardos Lens Grinding Machine lesketch of a grinding.
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The mirror or lens grinding machine is a masterpiece of mechanical engineering It has several gears in mesh at all times and also has several variable settings built into it This machine was most likely designed by Leonardo while he was either investigating the different ways that light reflected off things or maybe he was planning on.
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2016 6 6This machine is different than the grinding and polishing machines described later in the book and sounds like it is for small lenses and mirrors Ill try to take photos and upload them later My Camara phone photos are too large to upload here Thank you Matt Edited by Matthew Paul 16 August 2020.
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2001 4 12MIRROR GRINDING MACHINE I made my first mirror grinding and polishing machine over thirty years ago It used the working principle of the machine illustrated at A Fig 3 Page 163 Amateur Telescope Making Book 1 A bowl which rotated was fitted to the spindle.
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2011 10 17Galileo hand ground lenses to about an inch Amateur lens makers now do spherical lenses to three inches or so and mirrors to ten inches Past about four inches lens grinding gets much more difficult as the lenses shift from spherical to parabolic in order to correct distortion Not too many amateurs will attempt a six inch parabolic lens.
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Stellafane External Links provide links to related information on Amateur Telescope Making Mirror Making Optics other Astronomy clubs and local area links to the Springfield Vermont area.
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New York Scientific American 1966 525 p Amateur Telescope Making ATM is a series of three books edited by Albert G Ingalls between 1926 and 1953 while he was an associate editor at Scientific American The books cover various aspects of telescope construction and observational technique.
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2004 12 22Lens grinding and polishing is very delicate and precise work It is also very heavy manual work and very time consuming To lighten this hard labour for himself Christiaan designed and built his own lens grinding and polishing machines Figure 2 One of the greatest problems with lens grinding is to make a suitable lap by.
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2014 7 21Part I Grinding For many years amateur astronomers and telescope makers thought it essential that glass for telescope primary mirrors be at least one sixth as thick as its diameter In the last decade however it has become increasingly common to find telescopes with primary mirrors very much thinner than the standard 6 to 1 ratio giving.
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2014 7 12Amateur astronomers have been making lenses themselves for centuries Diamond wheels and constant water coverage are your friend for rough grinding to shape Plus lens.
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2015 12 17TA Lens Cloth 1AUD 114mm 4 5 Glass f8 Aluminium oxide grinding powder per kilo 40AUD Tin oxide grinding powder per kilo 30AUD Pumice grinding powder per kilo 30AUD 80 Grade grinding powder per 8 mirror 2AUD 120 2AUD 220 3AUD 320 4AUD 500 6AUD 1000 8AUD 1600 8AUD Cerium Oxide 8AUD Lap resin kit.
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2019 3 11Amateur Telescope Making Book 3 A Optical Production Methods and Machinery 1 A 1 Grinding and Polishing Machines 3 A 1 1 Ritcheys Description of His Machines 8 A 2 Machine Polishing Mirrors 17 A 2 1 Types of Machines 18 A 2 2 Continuous Polishing 20 A 2 3 Figure Obtained by Machine Polishing 20 A 2 4 Polishing Face up 22.
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