ritchey telescope mirror grinding machine
Mount Wilson Observatory | Building the 100-inch Telescope
George Ritchey, master optician, designed this machine to figure the parabolic surface of the 100-inch mirror. Here the mirror can be seen in its horizontal position with the large grinding …
Mirror-o-Matic mirror making machine - ATM pages of ...
Mirror-O-Matic grinding machine. When I decided in 2009 after a ten-year break to get into mirror making again, it quickly became clear to me that I would need to construct machine, as hand grinding big mirrors is not something very beneficial for the hands of a musician.
grinding an optical flat mirror - Reiner Vogel
The tester in slitless mode for Foucault testing with accessory telescope. The 15 cm flat mirror with zonal mask in an approximately 90° angle to an 11cm f/4.4 reference sphere (which is a spherical as it can be). Setup for Ritchey-Common test (RCT) A flat mirror with non -vanishing ... As the secondary mirror of a Lowrider will be ...
10Inch Ritchey Chretien Cassegrain ATM Project
Grinding started with 220 grit and in less than 1 hour full contact was established between the mirror and all the grinding tiles. Grinding of the secondary mirrors stared at …
Astro-Tech Ritchey-Chrétien optics | Astronomics.com
For example, the Hubble Space Telescope, the twin 10-meter Keck telescopes in Hawaii, and the four 8.2 meter telescopes of the Very Large Telescope array in Chile are all Ritchey-Chrétiens. For serious amateur astronomers and astrophotographers without NASA's optical budget, an Astro-Tech R-C is likewise the imaging system of choice.
Document sans nom - Astrosurf - Astronomie
As often in sciences and technology, Leonardo da Vinci was a pioneer, creating machines for the production of optical devices. Indeed, between 1513 and 1517, he imagined machines to grind and polish telescope mirrors, which, at the time, were made of bronze.
Telescope: Ritchey's 60-inch Reflector - AmazingSpace
First, Ritchey built a machine to grind and polish the glass mirror. The machine combined cast-iron grinding tools, water, and a new kind of grinding material called carborundum, which was almost as hard as diamond, to grind and polish the 60-inch glass disk.
SkyBadger - Mirror Grinding Machine
The grinding machine had been built to the design of the mirror-o-matic design of Dennis Rech ( link ). While the bulk of the components were in place it wasn't finished: some linkages were not in place, the tool drive arm was unfinished and a few other bits weren't there.
tut44 Making A Mirror Grinding Tool
Making A Mirror Grinding Tool By Allen Malsburry The average person would never think, "I can make my own telescope." Most amateur astronomers believe, "I can buy a better
Telescope Mirror Grinding Machines | Crusher Mills, Cone ...
Mirror Making Machine – Welcome to the Fansler's. Bugger this for a Lark – A machine has got to be easier! I made my first telescope mirror, by hand in … could not afford the material to build a mirror grinding machine …
Joy of Mirror Making: Introduction - BBAstroDesigns
Pounding, scraping, knapping, grinding combined with fire, heat, melting leads us today to grinding telescope mirrors from glass. Making a telescope mirror is one of the most satisfying and sublime joys you will experience.
Ritchey Mirror Grinding Machine - National Air and Space ...
George Willis Ritchey built this mirror grinding machine at the Yerkes Observatory in Williams Bay, Wisconsin, in the late 1890s. Under the sponsorship of George Ellery Hale, the machine was used to grind a series of telescope mirrors starting with a 24-inch and then a 60-inch mirror for a telescope initially intended for the Yerkes Observatory.
How to make RC mirror? - ATM, Optics and DIY Forum ...
Feb 10, 2013· Reason is because a Ritchey Chretien uses two hyperbolic surfaces and is a complicated optical design. Spacing is critical. A Newtonian is much simpler in optical design and uses only one parabolic surface and a flat secondary mirror. There is actually plenty of information on how to make a Ritchey ...
telescope mirror grin centerless grinding machine for sale
Ritchey Mirror Grinding Machine National Air and Space Museum. Under the sponsorship of George Ellery Hale, the machine was used to grind a series of telescope mirrors starting with a 24-inch and then a 60-inch mirror for a
Stellafane ATM Main Page
Amateur Telescope Making Main Page. Russell Porter ... Much is also unchanged - mirror grinding techniques are very similar to those written up by Porter and Ingalls in the 20´s and 30´s. Many amateur astronomers still choose to fabricate their own instruments, for the pride of accomplishment, the gaining of knowledge and the insurance of ...
Telescope Grinding Machine - africairrigation.co.za
Mirror Grinding Machine, G. W. Ritchey - National Air . The machine was used for making numerous mirrors over the next four decades and extensively modified over that period. It embodies the "sub-diameter tool" design approach to making large telescope mirrors whereby the grinding tool is drawn across the mirror blank by programmable rotating ...
Mount Wilson Observatory | Building the 60-inch Telescope
Ritchey's grinding machine now rests in the Smithsonian. Photo: Carnegie/ Huntington Library Despite these extraordinary precautions, the entire surface of the mirror was deeply scratched by an unknown substance in one of the polishing compounds one day in April, …
Mirror Grinding Machine
My Mirror Grinding Machine. For a long time I've wanted to build a machine for grinding telescope mirrors. Dennis Rech's M-o-M designs finally inspired me to just get up and do it. Over the years, I'd been collecting motors, gear boxes, pulleys, etc.
telescope grinding machine optical instruments
Find Telescope Mirror Grinding Machine related suppliers, manufacturers, products and specifications on GlobalSpec - a trusted source of Telescope Mirror Grinding Machine information.
mirror grinding machine sale - smarthrsolutions.co.in
Ritchey Mirror Grinding Machine - National Air and Space Museum George Willis Ritchey built this mirror grinding machine at the Yerkes Observatory in Williams Bay, Wisconsin, in the late 1890s. Under the sponsorship of ...
telescope mirror grinding kit | eBay
Find great deals on eBay for telescope mirror grinding kit. Shop with confidence.
mirror grinding machine | eBay
Other Telescope Parts & Accessories; Guaranteed Delivery. see all. No Preference. 1 day shipping. ... Save mirror grinding machine to get e-mail alerts and updates on your eBay Feed. + ... GLASS EDGING POLISHER MACHINE 9 MOTORS FOR GLASS AND MIRROR EDGING AND POLISHING. Brand New. $17,415.00. Free local pickup.
telescope grinding machine - a-ztreefelling.co.za
telescope grinding machine, Ritchey Telescope Mirror Grinding Machine. Jun 14, 2009 . Excerpt from VHS video made at the Lick Observatory optical shops in Santa Cruz, CA before the object was acquired by the Smithsonian. Circa 1985. Mirror-o-Matic mirror making machine - …
TELESCOPE MAKING - deep-sky
The Ritchey-Chretien (RC)Cassegrain design of telescope is the one invariably chosen for most of the World's professional telescopes - including the Hubble Space Telescope.
telescope grinding machine – Grinding Mill China
Ritchey Telescope Mirror Grinding Machine - World News. Ritchey Telescope Mirror Grinding Machine, Rough Grinding a 20" Quartz Telescope Mirror on the Fixed-Post Machine, Panasonic HDC-SD60 Telescope mirror grinding » Learn More. TELESCOPE MIRROR GRINDING MACHINE « Optics & Binoculars.
Making a Mirror grinding & Polishing machine - ATM, Optics ...
Mar 16, 2015· Page 1 of 5 - Making a Mirror grinding & Polishing machine - posted in ATM, Optics and DIY Forum: Hello, I am on the half of the way to make a mirror grinding machine inspired by original M-O-M design. I made the pulley arrangement such a way that, both the turn table & eccentric spins at 50 RPM fixed. I wont go for making mirror bigger that 10.5 (or max 12).
telescope mirror grinding / polishing machine with ...
Feb 14, 2016· This feature is not available right now. Please try again later.
ON THE MODERN REFLECTING TELESCOPE, AND 'rHE MAKING
ON THE MODERN REFLECTING TELESCOPE, AND 'rHE MAKING AND TESTING OF OP'rICAL MIRRORS' BY GEORGE W. RITCHEY il ASSISTANT PROFESSOR OF PRACTICAL ASTRONOMY, AND SUPERINTENDENT OF INSTRUMRNT ... Five·foot Mirror and Grinding Machine, Showing Method of Tipping Glass on Etlge for,Testing ", " " ', . . 2 PI,ATE III.
mirror grinding machine - christoartfair.nl
Mirror Grinding Machine, G. W. Ritchey National Air Collection Item Summary George Willis Ritchey built this mirror grinding machine at the Yerkes Observatory in Williams Bay, …
Ritchey Telescope Mirror Grinding Machine - YouTube
Jun 14, 2009· Excerpt from VHS video made at the Lick Observatory optical shops in Santa Cruz, CA before the object was acquired by the Smithsonian. Circa 1985.
telescope mirror grinding machine
Ritchey Telescope Mirror Grinding Machine - YouTube. Excerpt from VHS video made at the Lick Observatory optical shops in Santa Cruz, CA before the object was acquired by the Smithsonian Circa 1985 » Contact Supplier. mirror grinding machine - CGM Grinding Plant.
mirror grinding mashinee - schievelavabojourdan.be
Mirror Grinding Machine, G. W. Ritchey - National Air … Collection Item Summary: George Willis Ritchey built this mirror grinding machine at the Yerkes Observatory in …
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